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TELECOMMUNICATIONS
FACILITIES
& WIRING
SPECIFICATIONS
OFFICE OF
INFORMATION TECHNOLOGY
(OIT)
NETWORK
SERVICES DIVISION
REVISED AUGUST
2005
*** PLEASE
READ THIS PAGE THOROUGHLY ***
THESE SPECIFICATIONS SHALL
APPLY IN ALL INSTANCES WHERE THE STATE OF
ALL PLANS,
SPECIFICATIONS, DRAWINGS, AND TECHNICAL INFORMATION CONCERNING
TELECOMMUNICATIONS MUST BE REFERRED TO, AND APPROVED BY, THE STATE OF MAINE,
OFFICE OF INFORMATION TECHNOLOGY (OIT), NETWORK SERVICES DIVISION, BEFORE
PROCEEDING WITH BIDDING OR CONSTRUCTION.
ALL PREMISES
TELECOMMUNICATIONS SWITCHING SYSTEMS, STATION EQUIPMENT AND TERMINAL DEVICES
AND THEIR INSTALLATION SHALL BE PROVIDED BY THE STATE OF
UNDER NO CIRCUMSTANCES
SHALL ANY TELECOMMUNICATIONS EQUIPMENT ROOMS, WIRING CLOSETS, CONDUITS,
RACEWAYS, POWER SUPPLIES, WIRING AND SPECIAL EQUIPMENT BE UTILIZED FOR ANY
PURPOSES OTHER THAN TELECOMMUNICATIONS AND OTHER RELATED SERVICES SPECIFICALLY
AUTHORIZED BY THE STATE OF MAINE, OFFICE OF INFORMATION TECHNOLOGY, NETWORK SERVICES
DIVISION.
THE STATE OF
TABLE OF CONTENTS
Section A
Telecommunications
4
Section B Service
Entrance
14
Section C Switch
Room
16
Section D Wiring
Closets
21
Section E Basic Cable/Wiring
Standards
24
Section F Cable Television
(CATV)
28
Section G Paging
Systems
31
Section H Video
Systems
32
Section I Mechanical
Equipment
33
Section J Fiber Optic Cable
Systems
35
Section K Removal of Old Cable and
Facilities
38
Section L Cutting and
Patching
39
Section M Temporary
Utilities
41
Section N Painting and
Cleanup
42
Section O Special Services and
Facilities
43
Appendix Jack Wiring and Facilities
Diagrams
44
SECTION
A-TELECOMMUNICATIONS
A.1. General
Furnish
and install all telecommunications jacks, outlets, conduits, raceways, ducts,
cables, electrical wiring, electrical outlets, backboards, racks, air
conditioning, flooring, sensors, alarms, and allied accessories, in accordance
with any applicable specifications and drawings, and the specifications
contained herein. Relocate or remove, as required, any existing jacks, outlets,
conduits, raceways, ducts, cables, equipment, etc., due to architectural
changes, or as shown on any applicable drawings, if such materials are not
reused in the construction, or do not meet the specifications set forth herein.
A.2. Included and Related Requirements
Basic
telecommunications requirements of this Division shall include, but shall not
be limited to that which is described in the subsequent sections of this
document as follows:
Included Work
Section B Service Entrance
Section C Switch Room
Section D Wiring Closets
Section E Basic
Cable/Wiring Standards
Section F Cable
Television (CATV)
Section G Paging Systems
Section H Video Systems
Section I
Mechanical Equipment
Section J Fiber Optic
Cable Systems
Related Work
Section K Removal of Old Cable
and Facilities
Section L Cutting and
Patching
Section M Temporary Utilities
Section N Painting and Cleanup
Section O Special Services and
Facilities
A.3. Definitions
The
following terms are defined as they are used and applied in the text of this
document, and any accompanying or related text and/or drawings and sketches.
1. Backboard: A section or sections of
wall-mounted plywood, ¾-inch thickness, on which telecommunications equipment
will be mounted.
2. Category 3 Cable: A 4-pair or other multiple
twisted-pair telecommunications cable which has been designed, manufactured,
and certified to meet all applicable EIA/TIA specifications for such cable.
3. Category 5 Cable: A 4-pair or other multiple
twisted-pair telecommunications cable which has been designed, manufactured,
and certified to meet all applicable EIA/TIA specifications for such cable.
4. Category 3 Hardware: Any telecommunications
wiring/cabling hardware, such as telecommunications jacks or outlets,
termination blocks, etc., which has been designed, manufactured, and certified
to meet all applicable EIA/TIA specifications for such hardware.
5. Category 5 Hardware: Any telecommunications
wiring/cabling hardware, such as telecommunications jacks or outlets,
termination blocks, etc., which has been designed, manufactured, and certified
to meet all applicable EIA/TIA specifications for such hardware.
6. Category 3 Installation: A telecommunications
cable/facilities installation which meets all of the applicable EIA/TIA
requirements and specifications for such installation, including cables,
associated hardware, installation methods and practices.
7. Category 5 Installation: A telecommunications
cable/facilities installation which meets all of the applicable EIA/TIA
requirements and specifications for such installation, including cables,
associated hardware, installation methods and practices.
8. "Category 5e"; "Category 5 enhanced": Terms
that refer to telecommunications cable and terminating hardware that exceed the
specifications for "standard" Category 5 cable and terminating hardware,
according to EIA/TIA requirements and specifications for such cable and
terminating hardware.
9. CATV (Common Antenna Television): An acronym
generally used in reference to "cable television" services and systems.
10. Certified: Equipment is "certified" if it has been
tested, and found by a nationally recognized testing laboratory to meet
recognized standards, or to be safe for use in a specified manner or
application, and bears a label, tag, or other record of such certification.
11. Coax; Coaxial Cable: A special two-conductor cable in
which there is a solid metallic "inner" or core conductor, covered by a
flexible insulating dielectric material over which is placed a tubular solid or
woven metallic "outer" conductor which shares a common radial axis with the
inner conductor. The outer conductor of the coaxial cable is generally sheathed
with a protective PVC, TFE, or polyethylene overall insulation. Associated with
the cable is a specific ohmic impedance value, which is a function of the inner
and outer conductor diameters and their radial separation through the
dielectric. This cable has a relatively wide signal bandwidth.
12. CMP (Communications Plenum) Cable: An electrical,
telecommunications, or any other type of cable bearing a special insulation and
sheath which conforms to NEC and other related safety codes and standards for
suppressing the release of noxious gas or toxic smoke when such cable is
subjected to heat and flames. This cable is used in an unprotected environment
(not in conduit), within any areas used for the ducting or transport of
environmental air within or to any building or space designed for human
occupation (Article 800, National Electrical Code).
13. Conduits: Piping or tubing used to encase
telecommunications or other cables. There are four basic types of conduit,
listed below, which are acceptable in specific instances:
a. S&D (Soil & Drain), PVC or HDPE;
b. Schedule 40 PVC;
c. EMT, a thin walled, steel electrical conduit;
d. Rigid, a heavy walled, solid, threaded, steel conduit.
14. Connecting Block: A telecommunications industry series
of telecommunications cable termination/connection "blocks" used to organize, terminate
and hold twisted pair wires and to provide a "cross connect" point between such
termination points of telecommunications cables.
15. Cover Plate: Also known as "face plate". A special
duplex electrical outlet box cover which mounts to the front of such a box, and
which is designed to carry associated telecommunications outlet modules which 'snap
in" to such plate. These plates are typically designed to accommodate 2,
3, 4 or 6 telecommunications outlet modules.
16. Demarcation Point: The point at which the RBOC/LEC
terminates its incoming service facilities within the premises.
17. Distribution/Cross Frame: A special frame or backboard
which is used to receive telecommunications cables from a telecommunications
switching system and/or incoming lines from the RBOC/LEC, and which facilitates
the cut-down, termination and connection points of the telecommunications
cables for distribution to terminal devices.
18. Duplex Electrical Box: A standard electrical outlet box
which is typically fastened to a building wall stud for the flush placement of
a duplex (2 outlet) electrical receptacle. It can also be used to flush mount
telecommunications jacks and CATV outlets designed to fit into such a box.
19. EIA/TIA (Electronics Industry Association/Telecommunications
Industry Association): A nationally recognized engineering standards
body of electronics and telecommunications professionals, manufacturers,
vendors and end-users, which sets various technical and manufacturing standards
and specifications for electronic and telecommunications systems and equipment.
20. Face Plate: See "Cover Plate".
21. Fiber Optics: In this context, either individual or
multiple single-mode or multi-mode glass fiber cabling systems, which transport
telecommunications signals in the form of high frequency light pulses.
22. Fiber Optic Terminal: A wall or rack mounted enclosure
designed for the termination of fiber optic cable, and which provides a
connection point for cross-connecting fibers or for connecting electronic fiber
optic transmitting/receiving equipment to the fiber optic cable.
23. Fiber Optic Cable: A special telecommunications cable
which contains one or more optical glass fibers, each of which is covered with
an identifying color-coded sheath, and all of which are covered with an overall
sheath containing a structural strength member of Kevlar or similar material.
It generally will contain no metallic structure or elements.
24. Gas Tube Protection: A 3-element gas tube protection
device, installed in series between the telecommunications cable and the
equipment frame, jack or telecommunications outlet, and designed to protect the
telecommunications equipment from electrical surges or spikes entering the
telecommunications cable system, such as may be encountered during an
electrical storm. This type of protection device is typically installed on a
cable protection terminal in which the cable is terminated, on each pair of
conductors within the cable that provide "POTS"-type service. Because of the
higher voltage rating of these devices, they should not be used on cable pairs
which service digital terminal or communications equipment.
25. Gauge: A term used to describe the physical diameter of
a copper wire conductor, as defined by American Wire Gauge (AWG) standards.
26. Ground: (1) An electrical reference to earth potential;
(2) Electrically connecting or bonding a conductor or conductive surface, such
as electrical/electronic equipment frames, equipment racks/shelves, gas tube or
solid-state protection frames, cable shields, etc. to an electrical ground.
27. Innerduct: A flexible, corrugated polymer tubing,
usually orange in color, in which fiber optic cable is placed. It is used
for the separation and protection of the fiber optic cable from other cables
using the same conduit, raceway, riser shaft, etc.
28. Intermediate Distribution Frame (IDF): In a relatively
large building, or a building with multiple floors, this is a space, closet, or
room where station cables will be terminated for a given area within the
building. It will also serve as a termination point for IDF-to-MDF "riser"
cables, including copper, fiber optic, and CATV cables. This space, closet or
room may also house electronic hubbing/switching, amplification and
distribution systems for data LAN's, video and CATV systems. This may also be
referred to as the "wiring closet".
29. Key System (KSU): A relatively small electronic
telephone switching system which is typically used in a small office
environment, and usually accommodates 8 or less RBOC/LEC service lines and 24
or less telephone sets.
30. Labeled: Equipment is "labeled" if it bears a valid
label, seal, or symbol of a nationally recognized testing laboratory, such as
Underwriters Laboratory, Inc., recognizing its acceptability for the intended
uses in these specifications.
31. LEC (Local Exchange Carrier): The local public telephone
or telecommunications service company or provider.
32. Listed: Equipment is "listed" if it is of a kind
mentioned in any document, published by a nationally recognized laboratory
which makes periodic inspections during production of such equipment, and
states that such equipment meets nationally recognized standards, or has been
tested and found safe for use in a specified manner.
33. Main Distribution Frame (MDF): A space, closet or room
which serves as the central telecommunications cable and service distribution
point for a premises. It will generally house the primary telecommunications
voice, data, video, fiber optic, and CATV switching and distribution
systems. It will serve as the connection point to RBOC/LEC services, the
termination point for IDF-to-MDF riser cables, including copper, fiber optic,
and CATV cables, and will be the primary point for inter building and intra
building cable cross-connections. This may also be referred to as the "switch
room" or "main wiring closet".
34. POTS: An acronym for "plain old telephone service", that
being the type of service typically offered to the general public and having the
technical characteristics of such service. It may also be called an "analog line".
35. Power Pole: Typically, a square or rectangular duct
associated with modular furniture installations, which attaches to and extends
vertically from such furniture through the ceiling, and affords a path for the
extension of electrical and/or telecommunications cables into such
furniture. May also be referred to as "tele-pole" or "com-pole".
36. PBX (Private Branch Exchange): A generic term for an
electronic telecommunications switching system.
37. Quad Electrical Box: A standard electrical outlet box
which is typically fastened to a building wall stud, and is designed for the
flush placement of two duplex (2-outlet) electrical receptacles. It can be used
to flush mount telecommunications jacks designed to fit into such a box.
38. RBOC (Regional Bell Operating Company): In this context,
a term used to designate the local RBOC,
39. Riser Cable: Generally, a telecommunications cable of 25
or more pairs which runs between and terminates in the IDF and MDF spaces of a
premises, and affords telecommunications service transport between such spaces.
It may also be called "vertical cable".
40. Solid-State Protection: A semiconductor protection
device, installed in series between the telecommunications cable and the
equipment frame, jack or telecommunications outlet, and designed to protect the
telecommunications equipment from electrical surges entering the
telecommunications cable system, such as may be encountered during an
electrical storm. This type of protection device is typically installed on a
cable protection terminal in which the cable is terminated, on each pair of
conductors within the cable. Solid-state protection devices are available in
various voltage ranges, and should be selected and installed to meet the
specific operational parameters of telecommunications equipment being attached to
the cable, i.e., equipment with "POTS"-type (analog) line interfaces or digital
line interfaces.
41. ST-style Connector: A fiber optic terminating connector
which incorporates a keyed, spring-loaded "bayonet-style" locking device, which
mates and locks onto a receptacle designed to accommodate such a connector.
42. Station Equipment: See "Terminal Devices".
43. Station Cable: Generally, a telecommunications cable of
4 pairs which runs between and terminates in the IDF/MDF space and the telecommunications
jack. This may also be called "station wiring" or "horizontal cable".
44. Switch Room: A generic term for a telecommunications
switching equipment room or space, and is usually the room in which the MDF and
telecommunications switching system and ancillary equipment is located.
45. Telecommunications Cable: A combination of two or more
twisted-pair copper wire conductors, which are grouped or bundled in a
protective overall jacket or sheath. Each conductor is insulated and color
coded with a specific colored insulating material. Cables containing more than
25 pairs shall be fabricated such that specific groups of 25 pairs each,
otherwise known as "binder groups" are formed and can be recognized as such
through color coding of the groups.
46. Telecommunications Jack: A fixture which generally
combines 2, 3, 4 or 6 modular telecommunications outlets into a standard duplex
electrical box, a quad electrical box, a self-contained surface mount fixture, or
a portable furniture panel fixture. The voice and data outlets are physically
similar, except the voice outlet has no keyway notch, so that a data plug
cannot be inadvertently inserted into it.
47. Telecommunications Outlet: An 8-conductor modular-style
device which terminates the telecommunications station cable at the station
end, and allows for telecommunications equipment attachment to the station
cable via an attachment cord. Voice-grade outlets shall be of the non-keyed
type and shall conform to EIA/TIA 568B Category 3 specifications. Data-grade
outlets shall be of the keyed type and shall conform to EIA/TIA 568B Category 5
specifications.
48. Terminal Device: A generic term for a telephone,
facsimile, data device, printer, or other telecommunications equipment,
connected by telecommunications cables or wiring.
49. Transient Voltage Protection: See "Gas Tube Protection",
"Solid-State Protection".
50. Twisted-Pair: One pair of single-conductor copper wires,
each encased in its own colored insulation, and twisted around one other in a spiraling
fashion at no less than six revolutions or 360 degree "twists" per foot of
length. Insulation material composition and exact twist geometry shall be
dictated by the EIA/TIA Category certification requirements and cable
manufacturing methods.
51. Uninterruptible Power System (UPS): A special power
system installed between the commercial electrical source and
telecommunications equipment which requires uninterrupted electrical power
service. These systems are generally self-contained with an internal battery
array. In normal operation, the UPS will condition and pass commercial power to
the attached equipment, when such power is available and suitable for
use. It will switch to internal battery power generation upon loss or
degradation of the commercial power service, all without interruption of power
service to the attached equipment.
52. Whip: Typically, a section of flexible PVC electrical
conduit with connector fittings, associated with modular furniture
installations, which attaches between such furniture and a "hard" wall, and
affords a path for the extension of electrical and telecommunications cables
into such furniture.
53. Wiring Closet: A space, closet, or room where station
cabling will be terminated for a given area within the building. It will also
serve as a termination point for IDF-to-MDF "riser" cabling, including copper,
fiber optic, and CATV cables. This space, closet or room may also house
electronic hubbing/switching, amplification and distribution systems for data
LAN's, video and CATV systems. This may also be referred to as the "IDF".
54. 66 Block: An older style twisted-pair cable
termination/cross-connect block which uses exposed split metal posts or tabs to
capture the wire conductor end and provide an electrical path to another
similar wire conductor, thereby facilitating a "cross-connect".
55. 110 Block: A newer style twisted pair cable
termination/cross connect block which uses a series of "captive caps" with integrated
recessed conductor tabs. The "bottom" of the captive cap terminates the pairs
of a given cable into the bottom of its conductor tabs. The "top" of the cap
provides captive "grooves" for the termination or "punch-down" of another cable
into the top of its conductor tabs, thereby facilitating a "cross-connect".
56. 110-JP Block: A specially designed 110-style termination
or "punch-down" block which has integral 8-conductor modular (RJ-45 style)
receptacles to facilitate direct connection of data equipment to the block via a
"patch cord". These blocks are generally used in an IDF, MDF, or a
computer/data equipment room where multiple connections are concentrated.
Single blocks are typically available with modular receptacle counts of 12 or
36.
A.4. Product Criteria
1. Products used in this project shall be the standard
products of a manufacturer regularly engaged in the manufacture of those
products.
2. Unless approved by the Network Services Division, items of
equipment shall essentially duplicate equipment that has been in satisfactory
use for at least five years.
3. Products shall be supported by a service organization
which maintains an adequate inventory of repair parts and is located reasonably
close to the site.
4. When two or more units of materials or equipment of the
same type or class are required, they shall be products of the same
manufacturer.
5. All
factory wiring of pre-assembled components shall be accompanied by wiring
diagrams.
A.5. Miscellaneous
1. Safeguarding Materials/Work Areas: Responsibility
for the safeguarding, care, and protection of all materials and work rests with
the contractor until the entire project has been completed, tested, and
accepted.
2. Regulatory Requirements: All work shall conform to
the requirements of all applicable codes, laws, regulations, local ordinances,
and contractors shall cooperate with all authorities having jurisdiction.
Compliance with laws and regulations on this project does not relieve the
contractor from compliance with more restrictive requirements contained in
these specifications.
3. Permits, Fees, Inspections: The contractor shall
secure and pay for all permits, fees, inspections, street opening charges or
fines assessed in connection with this project.
4. Warranties: Any manufacturers' warranties shall be
passed on to the owner at the completion and acceptance of the project. The
Contractor shall warrant all material and workmanship to be in compliance with
these specifications, according to standards acceptable to the
Architect/Engineer and/or the industry. The Contractor shall also warrant their
installations to be free of defects in both materials and workmanship for a
period of one year, or longer if specifically called for in the general
policies section of the specifications dealing with the entire project.
SECTION B-SERVICE ENTRANCE
B.1.
General
Furnish
all labor, materials, equipment, supplies and perform all operations necessary
to complete the service entrance work, in accordance with the applicable drawings
and these specifications. Furnish "as built" telecommunications drawings at the
completion of the project.
B.2.
Point of Entry
The entrance
to the premises shall be at a point mutually acceptable to the owner and the
RBOC/LEC, which usually is a point closest to the current facilities of the
RBOC/LEC.
B.3.
Entrance Methods
1. Buried: From the property line closest to the RBOC/LEC
facilities, there shall be a conduit(s) buried at a minimum depth of 24 inches,
using schedule 40 PVC pipe. In areas subject to vehicular traffic, the
conduit(s) shall be encapsulated in concrete to a minimum thickness of 3
inches, and running the full length of the traffic area. In all areas where
public streets are crossed, rigid steel conduit shall be used. All conduits
shall be capped after installation to protect them from weather elements and
debris. Unless otherwise specified, the minimum size and count for building
service entrance conduits shall be as follows:
a. Up to 25,000 sq. ft. floor space, one 4-inch diameter;
b. For 25,000 to 100,000 sq. ft. floor space, two 4-inch diameter;
c. Over 100,000 sq. ft. floor space, three 4-inch diameter.
2. Aerial: If the electrical power service entrance to the premises is
aerial, the Architect/Engineer may specify that the telecommunications entrance
be aerial as well, up to a maximum entrance cable size of two-hundred (200)
pairs (anything larger shall be brought in underground). Any aerial entrance
shall be in compliance with RBOC/LEC requirements. All aerial
telecommunications cable must be at least two (2) feet lower than any
electrical entrance, and shall carry to a standard weather head allowing
eighteen (18) feet clearance for any vehicular traffic. A minimum 2-inch
diameter weather head and conduit shall be installed to carry aerial cables
into the premises.
In either
case, any conduits shall be permitted to have only "long sweep" elbows, with
not more than two 90 degree elbows between any two pulling points (conduit ends
or pull boxes). Generally, the conduits shall be continuous from the
point of entry into the telecommunications switch room or other designated
demarcation point. If the run, from the point of entry into the premises
to the demarcation point, is greater than 50 feet, the entrance cable shall be
terminated within 50 feet of the entrance point and a suitable interior cable
shall be spliced to it to continue to the demarcation point, unless installed
in a suitable conduit which is continuous from the building penetration point
to the telecommunications room. If the total run of the entrance cable
exceeds 150 feet, a suitable pull box may be required, and shall be mounted at
the nearest point of entry, inside the building.
B.4.
Entrance Cable
The
telecommunications entrance cable shall be appropriately sized, twisted pair,
gel-filled, and specifically designed for underground or exterior usage (REA
PE-89 type cable). The cable and labor to install it will generally be provided
by the RBOC/LEC. It is up to the Contractor to make this determination and to
provide such cable and installation if the RBOC/LEC does not. If the Contractor
supplies the entrance cable, it shall be 24 gauge (minimum) telecommunications
cable.
In certain
instances, fiber optic and CATV entrance cables may be required. Please refer to
the appropriate sections in this document and any included special attachments
for details on such requirements.
B.5.
Switch Room Cable Entrance
The
entrance conduit may enter the switch room from either below the floor or
through the ceiling. In either case, appropriate bushings shall be used in the
open ends of the conduit to ensure a smooth edge against the cable, and shall
be properly sealed on both ends to ensure no leakage or penetration of water
into the switch room. All metallic telecommunications entry conduits shall be bonded
to the building's grounding system, in accordance with NEC and/or EIA/TIA
specifications. Since the RBOC/LEC may furnish and install the cable, the
contractor shall leave a pull rope in the conduit to assist the RBOC/LEC.
Entrance of the conduit into the switch room should be in a corner location
allowing a left to right breakdown of the cable onto the backboard(s) provided.
SECTION C-SWITCH ROOM
C.1. General
Furnish all labor, materials, equipment, supplies, and perform all operations
necessary to complete the switch room work, in accordance with the applicable
drawings and these specifications.
C.2. Size
The
switch room shall be a secure room, accessible by service technicians from a common
area (hallway, lobby, etc.) air conditioned with a two hour fire rating. Unless
otherwise specified, the overall size of the switch room shall generally be as
follows:
1.
Buildings less than 5,000 sq. ft., switch room of 8 x 10 ft.;
2.
From 5,000 to 10,000 sq. ft., switch room of 10 x 12 ft.;
3.
From 10,000 to 25,000 sq. ft., switch room of 14 x 14 ft.;
4.
From 25,000 to 100,000 sq. ft., switch room of 14 x 18 ft.;
5.
Over 100,000 sq. ft., switch room of 16 x 20 ft.
All shall
have a minimum floor-to-ceiling height of 8 ft.
C.3.
Lighting
The switch
room shall be fitted with flush mounted and switched ceiling lights that will
provide fifty (50) foot-candles at desktop levels in any area of the room.
C.4.
Air Conditioning
Switch room
shall be air-conditioned with a positive pressure and fresh air make-up, with
either its own unit or a dedicated air supply and a return air duct from the
room, or exhaust louvers with automatic fire dampers which will close in case
of fire. Air conditioning must be continuous, 24 hours per day, every day. See
Section I for size estimates.
C.5.
Environmental Requirements
The air
supplied to the equipment room must be clean and dry. Temperature must be held
between 45 degrees and 85 degrees F., with a designed continuous operating
temperature of 72 degrees F. Relative humidity must be maintained between 20%
and 80% (non-condensing) with a designed continuous operating level of 45%.
C.6.
Sprinklers/Fire Rating
If any
building specifications and/or safety and fire laws, codes, ordinances or other
regulations require a fire sprinkler system to be installed in the switch room,
then such system shall be a dry-charged water system. The floor, ceiling, and
walls will be constructed to meet the two (2) hour fire rating requirements,
including a 36-inch wide, solid metal door and frame.
C.7.
Location of Entrance Cable
Entrance
cable conduit shall be brought into one corner of the room that will afford a
left to right breakdown of cables onto backboards mounted on two adjacent
walls. In a case where there are multiple buildings within the project, two
4-in. diameter conduits shall be run from the switch room to either another
switch room or wiring closet in the other buildings. All telecommunications
cable between buildings shall be gel-filled PE-89 type twisted-pair, 24 gauge
(minimum) cable. A pull rope must be installed with each cable. Gas tube and/or
solid-state protection is required at each end for all inter-building cables. Cables
must be installed without back taps.
C.8.
Cable Sizes
All
twisted-pair telecommunications cables between buildings, and from the RBOC/LEC
into the switch room (if contractor supplied), shall contain, as a minimum
size, 24-gauge conductors. In multiple story buildings (three or more floors),
riser cables from the main switch room (MDF) to remote wiring closets (IDF)
shall be 24-gauge (minimum) interior cable, ARMM type. Generally, the
pair count in any riser cable shall be equal to the telecommunications jack
count within any area(s) being served by such cable, times 4. For example, if
there are going to be 20 telecommunications jacks installed in an area, a
minimum 80-pair count cable is required (20 x 4 = 80). In this case, since
there is no manufactured 80-pair cable, the next highest standard count cable
(100-pair) would be installed.
C.9.
Backboards
Backboards
shall generally be 4-ft. x 8-ft. x ¾-in. plywood sheets of good quality,
painted two coats with an off-white semi-gloss or satin finish latex paint
which maintains the aesthetic quality of the room, mounted thirty-six (36)
inches above the floor, as measured from the lowermost edge of the
backboard. The horizontal span of single backboards (1 wall installation)
shall be 1 ft. less than the length of the wall on which they are mounted, and
such backboard shall be horizontally centered on the wall, leaving a 6-in.
space on either end between the adjacent wall and the end of the backboard. In
multiple backboard installations that meet in room corners, the backboards
shall form a continuous corner surface with no gaps. These backboards will, in
part, facilitate the construction of the Main Distribution Frame (MDF), and may
be referred to as such. All backboards shall be securely fastened
directly to the finished wall structure, using appropriate fasteners for the
surface to which such backboards are being fastened. Wall surfaces must
be finished and painted prior to backboard installation.
C.10. Electrical
Overhead
fluorescent light operation shall be controlled by a flush-mounted switch(s)
adjacent to the strike side of the entrance door to the switch room. Duplex
electrical outlets shall be provided (flush mounted) below the bottom edge of
the backboards, and on all other walls, at approximately 72-in. centers (i.e.,
2 duplex outlets in an 8-ft. backboard), with a minimum of 1 outlet per wall.
If more than 2 outlets will be placed in the room, then there shall be a
maximum of two outlets per 20-amp circuit, and adjacent outlets shall be on
alternating circuits.
A minimum
100-ampere service/breaker panel with an isolated ground bus shall be located
within and dedicated to the telecommunications switch room, and shall be
connected directly to the main electrical service entrance of the premises. The
panel shall be one from a common and widely recognized manufacturer.
The
service panel ground bus shall be properly grounded, by an appropriately sized
copper conductor, to a dedicated ground rod, bus or other ground point,
according to National Electrical Code requirements for isolated grounds for
service panels that provide electrical power to computer and/or electronic
equipment.
A ground
rod, bus or ground cable of minimum size 6 AWG, which is not associated with
the isolated ground of the electrical service panel, shall be made available
near the entrance conduit and backboard, to enable the direct grounding of gas
tube and solid-state protection devices, switching equipment and any ancillary
equipment requiring such a ground.
If the
switch room contains its own air conditioner or other equipment, which uses
electric motors or otherwise presents a relatively heavy load to the electrical
service, then such equipment shall be powered from electrical service which is
independent of the switch room service panel.
Local fire
code may require the installation of an emergency electrical switch, in close
proximity to the entrance door, which can disable all power in the room.
NOTE:
THE ABOVE REQUIREMENTS ARE GENERAL IN NATURE. THERE MAY BE SPECIFIC
REQUIREMENTS DUE TO EQUIPMENT CONFIGURATION. CONTACT THE STATE OF
C.11. Finish
The switch
room floor finish shall be sealed (painted) concrete, vinyl floor covering
(VCT), or non-static carpet. Walls and ceiling (except "suspended" ceiling)
shall be painted two coats of satin or semi-gloss paint, in either off-white or
light beige color. Steel doors and louvers (if any) shall be painted in
accordance with the general painting section, or as the Architect/Engineer
shall direct. Backboards shall be covered with two coats of off-white satin or
semi-gloss latex paint.
C.12. Distribution
There
shall be conduits exiting the switch room from a point diagonally across from
the entrance cable, either through the ceiling or into the floor. The size and
number of conduits shall be dependent on the total size of the building and the
number of associated wiring closets (next section). After all cabling is in
place, all conduit openings shall be sealed with a fire barrier sealant which
conforms to electrical codes (such as 3M Fire Barrier Sealer), to ensure a
positive seal against rodents, moisture, smoke or gas ingress/egress.
C.13. Telecommunications
Jacks
There
shall be a minimum of two telecommunications jacks at the standard electrical
outlet height, in the approximate location of any work desk that may be placed
in the room. The jacks shall be wired using the same specifications as for the
balance of the premises.
C.14. Keying/Securing
The switch
room entrance door shall be lockable. The locks for the switch room (MDF) and
all other telecommunications-related rooms, closets, or cabinets within the
premises shall be keyed identically, and such keys shall be unique from any
other lock and key combinations present within the premises.
C.15. Fire
Extinguisher
There
shall be a U.S. DOT (Department of Transportation) approved carbon dioxide
(CO2) type fire extinguisher bearing a minimum UL (Underwriters Laboratories)
rating of 10B:C, mounted on the wall or in a recessed cabinet, on the outside
of the switch room, immediately adjacent to the handle side of the entrance
door.
C.16. Shelves
& Electronic Racks
Two
shelves, one 12-in. depth x 4-ft. length and one 18-in. depth x 4 ft. length,
may be required, adjacent to the PBX on the MDF. The 18-in. x 4-ft. shelf
should be fitted with a 1-in. slot or gap at the back edge to allow for cable
feeds. There may also be requirements for electronic equipment racks
(relay racks). Specific requirements shall be determined and approved by
Network Services Division personnel prior to any construction.
C.17. Locations
If the
switch room (MDF) is to be used to terminate station (horizontal) cables, it
must be located so that any telecommunications outlets, whose station cables
will terminate directly in that room, will be within 295 cable-feet (90 meters)
of that room, per EIA/TIA specifications for maximum horizontal cable
distances.
Placement of switch rooms, closets, and jacks must be approved by the Office Of
Information Technology, Network Services Division.
C.18. Other Uses
The switch
room and wiring closets shall be solely for the use of telecommunications
equipment and personnel. They should be considered remote locations owned by
the Network Services Division. No storage of any type or any other use of the
room shall be permitted.
SECTION D-WIRING CLOSETS
D.1. General
Furnish all labor, materials, equipment, supplies, and perform all operations
necessary to complete the wiring closets, in accordance with the applicable
drawings and these specifications.
D.2. Size
A
wiring closet(s) shall be a secure room(s), accessible by service technicians
from a common area (hallway, lobby, etc.) and shall be constructed to meet a
one (1) hour fire rating. Sizes will vary, depending upon telecommunications
requirements, but will roughly fall into three categories as follows:
1. Dedicated room, of dimensions approximately 6 ft. (D) X 8 ft.
(W) x 8 ft. (H);
2. Recessed closet, adjacent to a hallway, fitted with a double
access door, with dimensions of approximately 4 ft. (D) X 6 ft. (W) X 8 ft.
(H);
3. Wall access panel, recessed into a hallway or corridor wall, and
of dimensions approximately 2 ft. (D) X 4 ft. (W) X 4 ft. (H).
D.3. Lighting and Environmental Requirements
Wiring
closets shall be provided with continuous positive ventilation with exhaust
through door/wall louver(s). Normal building environmental air is sufficient
provided it shall be clean, dry and free of corrosive fumes or other airborne
contaminants, be maintained at a temperature between 45 degrees F, and 85
degrees F, and have a humidity content between 20% and 80% (non-condensing).
Equipment in wiring closets may generate approximately 500 - 1000 BTU/hr or
more (contact State Network Services Division for actual BTU ratings). Lighting
which provides 50 foot-candles throughout is also required.
D.4. Sprinklers
If any
building specifications and/or safety and fire laws, codes, ordinances or other
regulations require a fire sprinkler system to be installed in the wiring closet(s),
then such system shall be a dry-charged water system.
D.5. General Layout and Location
All
wiring closets shall contain plywood backboards of 3/4-in. thickness, covered
with two coats of off-white paint, and shall be constructed in a manner similar
to that detailed in Section C.
The
incoming conduit from the switch room shall terminate at the left end of the
backboard in the wiring closet to allow a left to right breakdown of riser
cable(s). On the right end of the backboard, there shall be conduit exit points
for horizontal cable distribution throughout the premises. These exit points
shall either be full conduits or sleeves through the ceiling, floor, or shall
otherwise employ an exit method which can be made tight (foam-filled in
the ends of conduits, sleeves, etc.).
In any
multiple story building, there shall be a minimum of one wiring closet per
floor. On any floor of any relatively large building, there shall be a sufficient
number of wiring closets strategically placed throughout the floor, which will
ensure current and future adherence to the 295 (maximum) cable-feet (90 meters)
EIA/TIA specification for station-to-IDF (jack to wiring closet) horizontal
cable runs. Wiring closets shall be serviced by dedicated copper (ARMM
type) and optical fiber riser cables from the MDF. Riser cables shall be
sized (pair count) according to specifications in Section C.
Location of closets and jacks must be approved by the Office Of Information
Technology, Network Services Division.
D.6. Electrical
Each
wiring closet shall have a minimum of two duplex electrical outlets, on a
20-amp circuit that is dedicated to that closet. The circuit breaker for this
circuit must be proprietary to telecommunications usage, and shall be
explicitly marked "VITAL TELECOMMUNICATIONS POWER CIRCUIT - TRIP IN EMERGENCY
ONLY". Each closet shall be provided with a switched light source sufficient to
support easy visual identification of telecommunications wiring and to support
any telecommunications maintenance activity in the closet.
D.7. Finish
Finish
of closets shall be aesthetically acceptable and comparable to surrounding
areas in both quality and color.
D.8. Keying/Security
All
wiring closet entrance doors shall be lockable. The locks for all wiring
closets (IDF) and all other telecommunications-related rooms, closets, or
cabinets within the premises shall be keyed identically, and such keys shall be
unique from any other lock and key combinations present within the premises.
D.9. Fire Extinguishers
Location of fire extinguishers in or near wiring closets shall generally follow
the fire and safety codes which apply to the general physical area(s) adjacent
to the wiring closet.
D.10. Other Uses
All
wiring closets shall be solely for the use of telecommunications equipment and
personnel. They should be considered remote locations owned by the Network
Services Division. No storage of any type or any other use of the closets shall
be permitted.
SECTION E-BASIC WIRING STANDARDS
E.1. General
Furnish all labor, materials, equipment, supplies and perform all operations
necessary to complete the telecommunications cable wiring, in accordance with
the applicable drawings and these specifications. All wiring must also be
performed in accordance with the National Electric Code and any State or
E.2.
Scope; Services
The total number
of cable runs and the sizes of the cables shall be dependent upon the size,
occupancy, and use of the premises.
1. All interior cables to the telecommunications jacks ("horizontal
cables"), whether intended for immediate or future use, shall be a minimum of
two four-pair, non-shielded, PVC (non-plenum rated) jacketed or TFE/FEP (plenum
rated) jacketed, 24 gauge twisted pair cable, with a minimum EIA/TIA certification
of Category 5e, one to the "voice" outlet and one to each of the "data" outlets
of each telecommunications jack. The voice cables shall have an outer
jacket that is gray in color. The data cables shall have an outer jacket
that is blue in color. There shall be no exceptions to cable color code.
Note: THIS IS MINIMUM TWO SEPARATELY SHEATHED, 4-PAIR EIA/TIA CATEGORY 5e
CABLES TO EACH JACK LOCATION. ANY DEVIATION FROM THIS REQUIREMENT MUST BE
APPROVED BY THE NETWORK SERVICES DIVISION OF THE OFFICE OF INFORMATION
TECHNOLOGY.
2. All such cables shall be connected to or "cut down" on the
appropriate outlets and terminal blocks, as required. The following jack
hardware shall be used, as required, for wall-flush, wall-surface or portable
furniture mount (Lucent/Avaya part #s):
a. Ivory-colored wall flush-mount face plate, 2-position, M12A-246,
or equivalent;
b. Ivory-colored wall flush-mount face plate, 3-position, M13A-246,
or equivalent;
c. Ivory-colored wall flush-mount face plate, 4-position, M14A-246,
or equivalent;
d. Ivory-colored wall surface-mount box, 2-position, M102SMB-B-246,
or equivalent;
e. Ivory-colored wall surface-mount box, 4-position, M104SMB-A-246,
or equivalent;
f. Ivory-colored modular furniture-mount face plate,
3-position, M13C-246, or equivalent.
Each face
plate or box shall carry, at a minimum, one ivory-colored "snap-in" Category 3
modular outlet (voice) M1BH-246 or equivalent, and one orange-colored "snap-in"
Category 5e modular outlets (data), MPS100BH-112 or equivalent, as required.
3. All 4-pair cables shall be run from the telecommunications jack
to the MDF or to the designated IDF for any given area within the premises, and
each such run shall be no longer than 295 cable-feet (90 meters), per EIA/TIA
specifications for such cables. The cables shall be identified by a jack number
and by function (voice or data). The "voice" cables shall be terminated at the
IDF or MDF on Category 3 "110" termination blocks. The "data" cables shall be
terminated on Category 5e "110-JP" termination blocks or rack-mounted patch
panels. Where IDF spaces are employed, there shall be multi-pair riser cable(s)
run from each IDF to the MDF of sufficient total pair count to accommodate the
total pair count for both voice and data jack terminations in each IDF space.
Sufficient cable length must be left at all cable ends to allow for the proper
dressing and cut-down of the cable. Riser cables shall be terminated on "110"
termination blocks. All cables shall be run in one continuous length from
the jack to the designated termination point (IDF/MDF), with no splices or
intermediate terminations in such cables.
4. All riser cables shall be of 24-gauge, sheathed, twisted-pair, color
coded and appropriately sized (pair count) for the installation. Fiber optics
riser cables may also be required when data design specifications are exceeded
on twisted pair cable (see Section J for fiber optics specifications).
5. In all instances where telecommunications cable is run, either
between the switch room and wiring closets, and/or from wiring closets or the
switch room to the jacks, and where such cable is not in conduit, the cable
must be fire rated. In those instances where cables are run in or through any
spaces which are used in any way for environmental air, such cable shall be CMP
(National Electric Code Article 800, Plenum Cable) rated, and shall be labeled
as such.
6. For cable runs between switch room and wiring closets, there
should be adequate backboard space provided for the cables and associated
termination hardware (see Section C). Both cable ends shall be cut down on termination
blocks as specified. All cables and pairs must be appropriately labeled.
7. Placement of telecommunications jacks in any building(s) should
be determined by the following general rule; "Wherever an electrical outlet is
located, there shall also be located a telecommunications jack, spaced 16 to 24
inches in the horizontal from, and at the same vertical height as such
electrical outlet. Exceptions are as follows:
a. closets;
b. restrooms;
c. mechanical rooms (boiler, pump, generator, etc.);
d. stairwells and hallways;
e. any large open interior spaces designed specifically for modular
furniture installations.
In cases
where modular (portable) furniture is to be installed, there shall be, at a
minimum, one telecommunications jack located within the furniture baseboard, as
close as possible to each desktop work area or workstation location. Each
jack shall carry, at a minimum, one Category 3 (voice) and one Category 5e
(data) telecommunications outlet. Ingress/egress of the associated telecommunications
cables within modular furniture shall be facilitated using a whip or a power
pole/"tele-pole", depending upon the specific architectural plan. In the
case of whip installation from "hard" walls to the modular furniture, there
shall be whips dedicated to telecommunications cables, and, under no
circumstances, shall any telecommunications cables share a whip with any
electrical or other non-telecommunications cables. There shall be duplex
or quad electrical boxes installed in the hard walls, at the standard
electrical outlet height, and at strategic points along such walls for
connection of the whips to the walls. Such boxes will provide an egress
point for telecommunications cables which are routed within the wall void from
the overhead spaces. In-wall conduit from such boxes to the overhead
spaces will typically be required to afford secure and unobstructed passage of
the telecommunications cables through the wall void. All in-wall conduits
and furniture whips shall be sized appropriately to afford a maximum 40%
cross-sectional cable loading for the number of telecommunications cables
required in each such conduit and/or whip. In the case of power pole
installation from the overhead, it is possible that electrical and
telecommunications cables might share a common power pole. In these
instances, electrical and telecommunications cabling within any power pole must
be separated by a sheath, conduit, compartment or other method which meets all
applicable National Electrical Code (NEC) requirements for such
installation. The telecommunications cable compartment in any such pole
shall be sized appropriately to afford a maximum 40% cross-sectional cable
loading for the number of telecommunications cables required in each such pole,
and such compartment shall not be shared with any non-telecommunications
cables. In all cases, final count and placement of modular furniture
telecommunications jacks, power poles and whips shall be determined by the
floor plan, and with the approval of the owner/tenant and the Office of
Information Technology, Network Services Division.
This rule
should be scrutinized carefully between architect/owner/tenant, in order to
understand the designed use, and possible future use of specialized areas, such
as classrooms, conference areas, hearing rooms, libraries, etc., and to plan
for telecommunications jack placement accordingly.
Any areas
such as conference rooms, gymnasiums, armories or other spaces that might be
used in an emergency or special situation to support a phone bank, call
distribution center, or emergency support group should be configured with
additional telecommunications facilities. The Network Services Division can
provide cost effective suggestions.
8. All vertical and horizontal cable runs must be independently
suspended by approved hangers, trays, ducts or raceways. All telecommunications
cables must be placed to avoid electromagnetic interference caused by
electrical/electronic devices, such as florescent light ballasts, electric
motors, generators, power supplies, radio transmitters, etc.
9. All jacks must be placed within 295 cable-feet (90 meters) of
the switch room or IDF in which such wiring terminates, per EIA/TIA
specifications for such cables. The Network Services Division must review and approve
placement of jacks.
10. All cable installations shall be tested and verified for proper
conductor pair polarity, sequence and continuity. All Category 5e installations
will be performed in accordance with all installation practices and guidelines
that are recommended for such installation. All Category 5e installations shall
be tested and verified for compliance with all applicable standards for such
installation, and a complete certification report shall be compiled and
submitted to the Network Services Division upon the completion of installation
and certification testing.
E.3.
Labeling
1. General:
Identification labeling of all installed telecommunications facilities and
systems shall be specified by the Network Services Division.
2. Trunk/Riser
Cables: All telecommunications trunk and riser cables (copper twisted
pair, optical fiber, coaxial, etc.) shall carry a unique identification label
at both ends of each such cable, and related termination hardware shall be
labeled likewise. Specific labeling requirements shall be developed for
each installation.
3. Voice/Data
Station Jacks, Termination Blocks and Patch Panels: All
telecommunications jacks, outlets, termination blocks, patch panels or other
terminating hardware shall carry a unique, sequential identification label for each
"circuit" formed by a given cable and its associated outlet, termination block
position or patch panel port. Telecommunications jack, outlet,
termination block and patch panel labeling schemes within any building subject
to this Specification shall be in keeping with a logical, orderly, and
sequential layout, based on the architectural floor plans for the building, and
all such labeling schemes shall be determined and approved by the Network
Services Division.
SECTION F-CABLE TELEVISION (CATV)
F.1.
General
Furnish
all labor, materials, equipment, supplies and perform all operations necessary
to complete the cable television work, in accordance with the applicable
drawings and these specifications. All work must be performed in accordance
with the National Electric Code and any State and
F.2.
Point of Entry
The CATV
service entrance to the premises shall be at a point mutually acceptable to the
owner and the local CATV service provider. If the signal is to be provided by
antenna arrangements, then it shall be in accordance with the general
architectural plans showing that point closest to the area within the premises
that is intended to house the receiving or "head-end" equipment.
F.3.
Entrance Methods
1. Buried: From the property line closest to the CATV service
provider facilities "drop", there shall be a conduit(s) buried at a minimum
depth of 24 inches, using minimum 2-inch diameter schedule 40 PVC pipe. In
areas subject to vehicular traffic, the conduit(s) shall be encapsulated in
concrete to a minimum thickness of 3 inches, and running the full length of the
traffic area. In all areas where public streets are crossed, rigid steel
conduit shall be used. All conduits shall be capped after installation to
protect them from weather elements and debris.
2. Aerial: If the electrical power service entrance and
other telecommunications service entrances to the premises are aerial, the
Architect/Engineer may specify that the CATV entrance be aerial as well. Any
aerial entrance shall be in compliance with the CATV service provider
requirements. All aerial CATV cables must be at least three (3) feet lower than
any electrical entrance, and shall carry to a standard weather head allowing
eighteen (18) feet clearance for any vehicular traffic. A minimum 2-inch
diameter weather head and conduit shall be installed to carry cables into the
premises, and such conduit shall be continuous into the switch room or other
designated point of termination (demarcation point). If the service is via an
antenna arrangement on top of the building, then a conduit shall be installed
from the base of the antenna location to the point of termination.
In
either case, any conduits shall be permitted to have only "sweep" elbows and
not over two 90 degree elbows in any 200-ft. section. Generally, the conduits
shall be continuous from the point of entry into the telecommunications switch
room or other designated demarcation point. If the run, from the point of entry
into the premises to the demarcation point, is greater than 50 feet, then the
entrance cable shall be terminated within 50 feet of the entrance point and a
suitable interior cable shall be spliced to it to continue to the demarcation point.
If the total "run" of the entrance cable exceeds 250 feet, then a pull box of
sufficient size to accommodate the diameter of the telecommunications cable
shall be mounted at the nearest point of entry, inside the building.
In all
cases, the CATV entrance should parallel the telecommunications entrance if
possible. These may be instances where the CATV entrance may share a conduit
with the telecommunications entrance cable, and this will be determined on a "case
by case" basis.
F.4.
Entrance Cable
The CATV
entrance cable shall be a 75-ohm coaxial cable, with a physical composition and
diameter to be determined by the length of the service entrance run, and
designed for underground usage when it is to be used as such. The cable shall
be terminated into a coaxial grounding block by one of the two following
methods:
1. If the entrance is via underground conduit, then the grounding
block shall be located as close as possible to the point of building penetration
and shall be grounded to the telecommunications ground or other suitable nearby
ground.
2. If the entrance is aerial, then the grounding block shall be
located on the outside of the premises, as close as possible to the point of
building penetration, and shall be grounded to an outside ground rod.
In either
case, the coaxial cable will then continue to the designated point of
termination (demarcation point).
F.5.
Location
Entrance
conduit may enter the switch room or designated point of termination from
either below the floor or through the ceiling. In either case, appropriate
bushings shall be used in the open ends of the conduit to ensure a smooth edge
against the coax, and shall be properly sealed on both ends to ensure no leakage
or penetration of water into the switch room after the coax is in place.
Entrance
of the conduit into the switch room or designed point of termination should be
in a corner location, which will allow a left to right connection of cables to
branch extensions that will terminate on an associated backboard. This entrance
and the location of the backboard shall be on a wall location other than those
used for telecommunications cable and associated frames, blocks or
cross-connects.
F.6.
Backboard
The
backboard shall be of the same construction, affixed to the walls, and painted
in a manner which is consistent with the backboard requirements detailed in
other sections of this document.
F.7.
Other Runs
Conduit
runs carrying coaxial cables to other areas shall exit the switch room via a
sleeved conduit(s) (in the same general area as the entrance coax), which shall
be sealed in the same manner as the end of the telecommunications entrance
conduit(s). Coaxial cable runs to terminal locations shall either be placed in
conduit, or the coaxial cable itself shall be fire rated. In those instances
where the cables are run in or through any spaces which are used in any way for
environmental air, it shall be CMP (National Electric Code Article 800, Plenum
Cable) rated cable, and shall be labeled as such.
F.8.
Identification and Termination
Cable
terminations at the jack or "subscriber" end shall be in standard electrical
boxes, using standard F-type "feed thru" connector, and will serve as the CATV
outlet for the connection of television equipment. Each outlet shall be
assigned an identification label and such label shall be marked or affixed to
the cover plate of the outlet. Each cable shall be marked at the switch room,
or other designed common termination point, with a tag bearing an identifying
label which is identical to the one placed or marked on the far end of such
cable. Unless otherwise specified, the cables shall not be "cut down" or
connected at the switch room or other designed common termination point, but
shall be left with sufficient length to be affixed to the backboard and
properly connected to various CATV distribution devices. Unless otherwise
specified, all CATV distribution devices shall be supplied and installed by the
Office Of Information Technology, Network Services Division.
SECTION G-PAGING SYSTEMS
G.1.
General
Furnish
all labor, materials, equipment, supplies and perform all operations necessary
to complete the paging system work, in accordance with the applicable drawings
and these specifications. All work must also be done in accordance with the
National Electric code any State or
G.2.
Speakers
All speaker
units shall be listed equipment and installed in accordance with the
manufacturer's recommendations. Units shall be installed to afford future
access to the wiring connections, should the need arise.
G.3.
Wiring
All wiring
shall consist of the manufacturer suggested cable. Typically, the cable
composition will be one (1) shielded pair of 18-gauge copper conductors. A
cable shall be run to each speaker unit from the switch room, wiring closet or
other area which has been designated to house the paging system switching and
amplification equipment. All wiring not in conduit must be fire rated or CMP labeled.
G.4.
Identification
The
speaker end of each cable should be trimmed to length, dressed and affixed to
the speaker unit. The opposite (switch room) end shall be coiled with
sufficient length to allow dressing and connection to the switching and
amplification equipment, and shall be labeled in a manner that will identify
its associated speaker unit.
SECTION H-VIDEO SYSTEMS
ANY REQUIREMENTS FOR VIDEO
SYSTEMS WILL BE DEVELOPED SPECIFICALLY FOR EACH PROJECT REQUIRING SUCH SYSTEMS.
SECTION I-MECHANICAL EQUIPMENT
I.1.
General
Furnish all
labor, materials, equipment, supplies and perform all operations necessary to
complete installation of mechanical equipment required for the support of the
telecommunications infrastructure, in accordance with the applicable drawings
and these specifications. All work must also be done in accordance with the
National Electric code any State or
I.2.
Air Conditioning
There
shall be a continuously operating, forced air conditioning and ventilation
system servicing the switch room. Should the existing building system be sized
and operated in a manner which would allow adequate ventilation and air
conditioning of the switch room, as required by the PBX and other
telecommunications equipment specifications, then separate feed and return air
ducts shall be supplied to the switch room from the existing system. Use the
following guidelines for size estimates:
1. Minimum 24,000 BTU/hr of cooling in any room in which a large
PBX (approximately 50 stations or more) is to be installed, or when a room size
exceeds, by 50 percent, the minimum required space as specified in Section C.
2. Minimum 12,000 BTU of cooling in any room in which a small PBX
(approximately 49 stations or less), key system, or any other electronic
telecommunications equipment will be installed.
All
mechanical equipment shall be listed and certified as to its use and
application in this instance and for this specific use. There shall be labeled
fire dampers installed in all duct work with a certified fire closing link fuse
or other device designed to close off the air flow in the event of such a
situation.
In
addition to any other installation requirements, the installation of a
dedicated air condition system for switch rooms shall be in accordance with the
following:
1. Should the design call for an independent, dedicated air
conditioning unit for the switch room, then such a unit shall be provided. The
unit provided shall be of a recognized, listed brand designed for such an
application and shall be installed in such fashion as to prevent any possible
leakage of water into the switch room. Therefore, if a water cooled unit is
provided, it shall be installed outside the switch room. Should an air cooled
unit be provided, it may be installed within the switch room in a location not
directly over the PBX or backboard locations.
2. Air conditioners must be powered separately from the switch room
electrical service.
I.3. Related Electrical Wiring
All
wiring, circuitry and electrical components shall be UL (Underwriters
Laboratories) approved and installed in accordance with all codes. All
electrical circuits utilized shall be protected by a circuit breaker of
sufficient size to support the installation.
SECTION J-FIBER OPTIC CABLE SYSTEMS
J.1.
General
Furnish all
labor, materials, equipment, supplies and perform all operations necessary to
complete the installation of fiber optic cable systems, in accordance with the
applicable drawings and these specifications. All work must be performed
in accordance with the National Electric Code and any State and
ALL WORK
INVOLVING FIBER OPTICS MUST BE APPROVED IN WRITING BY THE OFFICE OF INFORMATION
TECHNOLOGY, NETWORK SERVICES DIVISION.
J.2.
Point of Entry
The
entrance to the premises shall be at a point mutually acceptable to the owner
and the RBOC/LEC. If cables are to be installed within or between buildings,
then such entrances shall be in accordance with general architectural and
Office Of Information Technology, Network Services Division plans showing that
point closest to the planned location of the optical receiving/transmitting
devices.
J.3. Entrance Methods
1. Buried: From the property line closest to the RBOC/LEC
facilities, there shall be a conduit(s) buried at a minimum depth of 24 inches,
using minimum 2-inch diameter schedule 40 PVC pipe. In areas subject to
vehicular traffic, the conduit(s) shall be encapsulated in concrete to a
minimum thickness of 3 inches, and running the full length of the traffic area.
In all areas where public streets are crossed, rigid steel conduit shall be
used. All conduits shall be capped after installation to protect them from
weather elements and debris.
2. Aerial: If the electrical power service entrance and other
telecommunications service entrances to the premises are aerial, the
Architect/Engineer may specify that the fiber optic cable entrance be aerial as
well. Any aerial entrance shall be in compliance with the RBOC/LEC
requirements. All aerial fiber optic cables must be at least two (2) feet lower
than any electrical entrance, and shall carry to a standard weather head
allowing eighteen (18) feet clearance for any vehicular traffic. A minimum
2-inch diameter weather head and conduit shall be installed to carry cables
into the premises, and such conduit shall be continuous into the switch room or
other designated point of termination (demarcation point).
In
either case, any conduits shall be permitted to have only "long sweep" elbows
and not over two 90 degree elbows in any 200-ft. section. Generally, the
conduits shall be continuous from the point of entry into the
telecommunications switch room or other designated demarcation point.
If the
run from the point of entry into the premises to the demarcation point is
greater than 50 feet, then the entrance cable shall be terminated within 50
feet of the entrance point, and a suitable interior cable shall be spliced to
it to continue to the demarcation point. If the total "run" of the entrance
cable exceeds 150 feet, then a pull box of sufficient size to accommodate the
diameter of the telecommunications cable shall be mounted at the nearest point
of entry inside the building.
In all
cases, the fiber optic cable entrance should parallel the telecommunications
entrance if possible. There may be instances where the entrance cable may share
a conduit with other telecommunications or CATV entrance cables, and this will
be determined on a "case by case" basis. In any case where a conduit is shared
with other cables, an innerduct shall be installed in such conduit to carry the
fiber optic cable.
J.4.
Fiber Optic Cable
The fiber
optic cable shall be appropriately sized (numbers of fibers) and shall be appropriate
for its intended installation environment, whether underground, aerial,
interior (riser), or plenum. Unless otherwise specified, each fiber will
be graded-index, dual-window, multimode, 62.5/125 micron, FDDI certified at 850
nm and 1300 nm. Each fiber shall be encapsulated in a color-coded
buffer/sheath, the fiber bundle shall be reinforced with a nonmetallic lateral
strength member (typically Kevlar), and all shall be sheathed in an overall
jacket of appropriate type for the given installation, and as specified by the
Network Services Division. Any requirements for single mode optical fiber
installations shall be considered on a case-by-case basis.
J.5.
Location
Entrance
conduit may enter the switch room from either below the floor or through the
ceiling. In either case, appropriate bushings shall be used in the open ends of
the conduit to ensure a smooth edge against the cable, and shall be properly
sealed on both ends to ensure no leakage or penetration of water into the
switch room after the cable is in place. One entrance of the conduit into the
switch room should be in a corner location, allowing a left to right connection
to the fiber optic terminal equipment. This entrance and the location of the
backboard shall be on a wall location other than those used for other
telecommunications cable and associated frames, blocks or cross-connects.
J.6. Backboard
The
backboard shall be of the same construction, affixed to the walls, and painted
in a manner which is consistent with the backboard requirements detailed in
other sections of this document.
J.7. Cable Ingress/Egress, Termination,
Splicing
Conduit runs carrying fiber optic cables to other areas shall exit the switch
room via a sleeved conduit(s) (in the same general area as the entrance cable),
which shall be sealed in the same manner as the end of the telecommunications
entrance conduit(s).
Fiber
optic cable runs to terminal locations shall either be in dedicated conduits or
placed in fiber optic innerduct of dimensions specified by the Network Services
Division. Fiber optic cable terminations shall be performed using ST-style or
SC fiber connectors, and shall terminate in AT&T/Lucent "Lightguide" or
equivalent fiber optic terminals that are approved by the Network Services
Division. Specific termination connector type shall be determined by the
Network Services Division prior to the commencement of such work.
Fiber
splicing is to be performed only with the permission of the Network Services
Division. Fiber splicing and termination must only be performed by trained
personnel and must be in accordance with industry accepted fiber splicing
methods.
J.8. Certification and Identification
All
terminated fibers shall be guaranteed by the installer to meet continuity and
system design loss criteria. Upon completion of the fiber optic cable
system installation, each terminated fiber of all fiber optic cables shall be
tested and certified for continuity and end-to-end loss. Supporting
documentation which details such test and certification shall be submitted to
the Office Of Information Technology, Network Services Division upon completion
of the project. Each fiber optic cable and each fiber within such cable
shall be marked at both termination points to clearly identify the cable, its
associated fibers and termination points.
SECTION K-REMOVAL OF OLD CABLE AND FACILITIES
K.1. General
Execute all removal of old telecommunications cable, conduits, racks and other facilities
presently existing within the premises, and which will not be reused in any new
installation, in accordance with the applicable drawings and these
specifications.
K.2. Inspection
The
Contractor shall inspect existing conditions with the Office Of Information
Technology, Network Services Division to make a determination of what is to be
removed and which existing conduits, cables, etc., shall be reused.
K.3. Removal
Removal shall consist of the disconnection of all wiring and/or cables and
their subsequent removal by pulling out of conduits, raceways, over ceilings,
in crawl spaces or wall cavities, removing surface wiring or cable and any
related fastening devices wherever possible. If old wiring and/or cables should
be installed in walls, floors or ceilings in such a manner which makes it
impossible to remove, then it may be left, with the consent and written
permission of Office Of Information Technology, Network Services Division. Such
wire and/or cable shall be cut as close to the surface as possible and the cut
ends taped to prevent accidental reuse, and shall be pushed inside the
structure to allow patching and refinishing of the remaining holes. In all
cases, removal of telecommunications facilities shall be accomplished in a
manner which will allow for a clean, clear surface to remain, i.e., one which
can be patched, restored, and painted to match the surrounding conditions
without degradation to the premises.
All
items shall be removed from the premises in accordance with the general
provisions regarding this project, or as the Architect or engineer shall
dictate. All waste materials must be disposed of in accordance with any and all
applicable local, State, and Federal waste disposal regulations.
SECTION L-CUTTING AND PATCHING
L.1. General
Execute cutting, fitting, and patching (including ground excavation and back
fill if needed) and furnish all labor, materials, equipment, supplies,
temporary barricades, and covers for equipment/furnishings; and perform all
operations necessary to complete the telecommunications project, in accordance
with the applicable drawings and these specifications.
L.2. Inspection
The
contractor shall inspect conditions, including any and all elements subject to
damage, movement, disruption or safety requirements during cutting and patching
operations.
L.3. Acceptance
The
commencement of cutting or patching means the contractor has accepted existing
conditions.
L.4. Protection
Contractor shall provide supports, temporary barricades, covers, or other
protective devices to ensure protection of other portions of the project from
direct, indirect or incidental damage.
L.5. Restoration
All
restoration work shall be accomplished with new materials by the crews or work
forces performing the original work on this project, whenever possible.
L.6. Cutting
All
cutting of rigid materials shall be accomplished using metal, wood cutting, or
masonry saws or core drills. Pneumatic tools shall not be used in occupied
buildings without prior approval of the owner.
L.7. Corrosive and Foreign Materials
Whenever conduits, pipes or wiring traverses through walls, and cannot be
closed securely for reasons of expansion/contraction, pipe collars shall be
used to close the opening as much as possible against dust, dirt, corrosive or
foreign materials, or for cosmetic purposes.
L.8. Finish
All
finish work shall be smoothed, sanded, fitted and painted or finished to ensure
a cosmetically acceptable, finished product.
L.9. Exterior
Any
exterior ground trenching shall be back filled, compacted, and covered to match
the preexisting conditions (i.e., gravel, crushed stone, hot top, concrete
sidewalk, loam and sod). When excavating through a hot top area, all cuts shall
be "saw cut" and "infrared bondings" shall be used when replacing hot top
materials.
SECTION M-TEMPORARY UTILITIES
M.1. General
Furnish
all necessary labor, materials, equipment, supplies and perform all operations
necessary to provide temporary heat, lights, and power for any
telecommunications activities for the duration of the project.
M.2. Supervision
The
contractor shall allow Owner/Lessee-supervised telecommunications installers,
technicians or service personnel, including telecommunications contractor(s)
under contract to the owner/Lessee, to enter the premises and to perform
required telecommunications installations, repairs, and modifications.
M.3. Temporary Measures
All
telecommunications activities performed under this section shall be provided
with temporary heat and toilet/ sanitary facilities as deliverable and
available to the balance of the project, as well as temporary lighting and
power outlets as required, until such permanent utilities and fixtures become
available for use.
M.4. Coordination
Telecommunications contractors and personnel under control of the Owner/Lessee
shall coordinate all activities and hours of working with the contractor or
subcontractor responsible for the completion of the telecommunications portion
of this project.
M.5. Protection
The
contractor shall take all steps required to secure and protect
telecommunications equipment, supplies and tools placed in the premises and not
part of this contract. Such protection shall include, but is not necessarily
limited to, security, temporary covers, barricades, and space heating.
M.6. Safety
The
contractor shall provide and install all temporary measures necessary to
protect the safety of all pedestrian and/or vehicular traffic during any
internal or external construction activities in which the contractor is engaged.
Such safety measures shall include, but shall not be limited to warning signs,
banners, ribbons, barricades, fences, ropes, reflectors or lights. All
temporary safety measures installed by the contractor shall be removed when
work is completed and when no further work area hazards exist.
SECTION N-PAINTING AND CLEANUP
N.1. General
Furnish all labor materials, equipment, supplies and perform all operations
necessary to complete the painting and cleanup of all telecommunications
activities, in accordance with the applicable drawings and these
specifications.
N.2. Coordination
The
telecommunications contractor(s) shall coordinate with the general contractor
for the entire project or premises to ensure completion of all work in accordance
with these plans and specifications.
N.3. Painting
Final
painting shall be accomplished with color selection being determined either by
requirements to match existing work, or as directed by the
contractor/subcontractor responsible for painting and interior finish work for
the entire project.
N.4. Rubbish Removal
At the
completion of the telecommunications work, all trash, scrap materials, broken
or discarded construction materials, boxes, cartons, scrap wire/cable, empty
containers, temporary barricades, safety devices, temporary utility
connections, shall be removed from the work areas or otherwise moved or placed
at the direction of the general contractor responsible for the total project.
All waste materials must be disposed of in accordance with any and all
applicable local, State and Federal waste disposal regulations.
N.5. Cleanup
All
areas involved in the scope of the telecommunications plans and specifications
shall be swept clean, floors moped down, and floor finish applied, as required.
All hand smudges, paint droppings or other noticeable defects that would affect
the cosmetic appearance of the project, shall be corrected to the satisfaction
of the general contractor, and the architect/engineer on the project.
SECTION O-SPECIAL SERVICES AND FACILITIES
ANY REQUIREMENTS FOR
SPECIAL TELECOMMUNICATIONS SERVICES AND/OR FACILITIES WILL BE DEVELOPED
SPECIFICALLY FOR EACH PROJECT REQUIRING SUCH SERVICES AND/OR FACILITIES.
APPENDIX
VOICE
/ DATA OUTLET WIRING DETAILS............................................................................
I
TYPICAL
BUILDING TELECOM WIRING & EQUIPMENT PLANT...................................
II
TYPICAL
P.B.X. ROOM
...........................................................................................................III
