- TRANSMISSION MEDIA
- COPPER CABLE
- Infrastructure-node cable shall be standard exchange type telephone
cable, which is defined as paired, multi-conductor, thermoplastic
insulated, copper cable characterized by a mutual capacitance at 1000 Hz
of 0.083 microfarads per mile. All cable provided shall be solid annealed
copper.
- Only 24 AWG cable may be used in the distribution network and must be
based on standard resistance design procedures, taking into account the
signaling limits of the Northern Telecom DMS-100 Switching Equipment. Loop
resistance calculations shall be based on cable temperature of 68 degrees
F. Cable selection MUST be equivalent or better than AT&T products
coded PIC, ASP, AFMW, and ARMM as specified.
- Cable selection must be in accordance with the following:
|
APPLICATION |
CONDUCTOR INSULATION |
CORE |
SHEATH |
|
Intra-building (risers and terminating stubs) |
Solid |
Air |
Alvyn |
|
Inter-building (in conduit) |
Foam/Skin |
Filled |
ASP* |
|
Inter-building (in steam tunnels) |
Foam/Skin |
Aircore |
APPLICATION |
* The National Electric Codes (NEC) prohibits the use
of outside plant copper cables within the building, since they are not
fire-resistant and do not pass any of the fire tests. If these cables are
utilized within a building beyond a fifty foot radius from the building
entrance, they must be enclosed in heavy-duty metal conduit.
- Cables must be sized to accommodate the voice, data, and miscellaneous
requirements specified by the end user and UIC
Telecommunications.
- There MUST NOT be multiple appearances of cable counts.
- Distribution cables from the NODE to the building (IDF) will be
equipped with protector modules at both ends.
- The cables shall be identified with appropriate cable tags at both
ends of the cable.
- Plastic wire ties shall not be used with category five or fiber optic
cable. Velcro wire ties shall be used. SoftCinch by Polygon is the
preferred brand of ties.
- The riser and distribution cables are sized and designed based on the
number of telecommunication information outlets (1-voice jack, 1-data
jack) that the space requires. The Telecommunications Engineer that
designs the riser system shall use UIC Telecommunications' formula of
three riser pairs for each telecommunications information outlet plus
25%.
- FIBER OPTIC CABLE
- The University will specify the pathways that shall be used and the
size of the fiber cables that will be required for each installation. The
cables must meet the following requirements:
- The inter-building campus backbone cable shall be armored, flame
retardant, tight buffeted, 100 KPSI proof tested, and must meet the
following requirements:
- 62.5/125 um dual window multimode fiber
- 3.0 db/km loss and 160 MHZ-km bandwidth at 850 nm
- dB/km loss and 500 MHZ-km bandwidth at 1300 nm
- 8.7/125 um single-mode fiber
- 0.5 dB/km loss at 1300 nm
- 0.5 dB/km loss at 1550 nm
- All intra-building multimode and single-mode campus backbone
cable shall be riser-rated, armored/non-armored, flame retardant, tight
buffered, 100 kpsi proof-tested and must meet the same attenuation grade
fiber as described above.
- All cables shall use the standard color coding system based on the 12
fiber colors
- blue
- orange
- green
- brown
- slate
- white
- red
- black
- yellow
- violet
- rose
- aqua
- All fiber splicing in manholes will be done by the fusion
method.
- Fibers terminated in University buildings will utilize ORTRONICS
ORMMAC terminating equipment. The number of fibers being terminated will
determine the correct size cabinets and miscellaneous material
required.
- 3M hot melt ST connectors will be used at all multimode and
single-mode terminating locations.
- Standard Fiber color code system
- Plastic wire ties shall not be used with category five or fiber optic
cable. Velcro wire ties shall be used. SoftCinch by Polygon is the
preferred brand of ties.
- HORIZONTAL WORKSTATION CABLE
- There shall be two separate cables run from the assigned telephone
information outlet to the corresponding assigned FDF using the following
format:
- One separate gray four pair level five cable for every "A" jack
(voice).
- One separate blue four pair level five cable for every "B" jack
(data).
- This segregation will be clarified by the University during the design
discussions.
- All cables shall be identified with a cable tag marked at both ends of
the cable.
- In the FDF's the cables are to be separated and neatly (but loosely)
lashed together with Velcro cable wraps and routed to the separate
termination locations indicated on the communications
drawings.
- Plastic wire ties shall not be used with category five or fiber optic
cable. Velcro wire ties shall be used. SoftCinch by Polygon is the
preferred brand of ties.
- All station cables must be continuous with no splices to the
FDF.
- Each cable should be a four pair, 24 gauge, solid copper, NEC rated CM
flame retardant polyethylene insulation, rip cord, PVC jacket, category 5
cable. Level five cable complies with the requirements contained in the
Electrical Industries / Telecommunication Industry Association
EIA/TIA-568A Structural Wiring Standard. Acceptable cable surface markings
must indicate verified category Five.
- One cable shall have a gray jacket that will be used for voice
facilities. One cable shall have a blue jacket that will be used for data
facilities. The installation of category 5 cable has caused a change in
the manner in which the cable must be installed to meet the requirements
of 100 megahertz data service. The Installation Work Force MUST be
certified by the UIC Telecommunications Engineering & Design. Upon
certification, new installation standards will be discussed.
- Cables for elevators, public coin telephones, fire alarms, and
miscellaneous security use will use four pair category five
cable.
- Station cables shall not exceed 295' in length from the assigned FDF.
Once a station is assigned to a FDF it cannot be changed without
permission of UIC Telecommunications Engineering &
Design.
- All station cable will be placed in a raceway from the FDF to the
information outlet. The following guidelines shall be used for placing the
station cables into these runways:
- One inch conduit shall be run from the information outlet to the cable
tray of the assigned FDF on the same floor. The conduit run shall not
have more than two ninety degree bends without a pull box.
- All cable above suspended ceiling shall be in an approved raceway
system (see VII -
RACEWAYS ). In no
circumstances will the cables be laid on suspended
ceiling.
- All gray colored station cables, for the voice information outlets,
will be terminated in the FDF cross-connect frame using the QCBIX1A4
distribution connectors. The cables MUST be terminated in
consecutive order from number one through the highest numbered served by
that particular FDF.
- All blue colored station cables, for the data information outlets,
will be terminated on the rear of the patch panels. These cables MUST also
be terminated in consecutive order and should match the corresponding
numbers on the patch panel. If more than 96 information outlets are served
by the FDF, then information outlet number 97 will become number one on
the next installed patch panel and will be clearly marked as to the outlet
number.
- Additional station cable types may be specified when required by UIC
for special applications. These cables must be installed in compliance
UIC Telecommunications Department Building Standards and all prevailing
standards and codes.
- The following outer jacket colors have been designated for
identification purposes of distribution cables:
- Gray for voice.
- Blue for data.
- Orange for fiber optic.
- Yellow for category five riser data feeds.
- Red for the electric shop cables.
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