Section 3 - COMMUNICATION OUTLETS - INSIDE
PLANT WIRING AND RACEWAYS
- 3.1.1 OVERVIEW
All telephone, data, video
station cabling shall be continuous cabling from the TC for voice,
data, video to the communication outlet. All station cables will
be free of kinks, chafes, and tight bends. Any ceiling tiles
removed by the contractor for cable installation will be
re-installed in good condition. Replacement of damaged tiles is
the contractor’s responsibility at no cost to the university.
The building occupant's present and future requirements
will determine the needs of multiple jack outlets. Final approval
for the layout of jacks shall rest with the Telecommunications
Center. During the programming stage Telecommunications Center,
consulting with the building occupant(s), will supply the jack
layout desired to the project architect for inclusion in the
All voice jacks shall terminate
in RJ-45 eight (8) conductor CAT 6 modular jack assemblies. The
voice jack shall be the top port(s) in the wall plate. If only one
voice jack, it should be terminated in the upper left port. Wire
color-coding shall be per EIA/TIA-568B specifications.
All data jacks shall terminate in RJ-45 eight (8)
conductor CAT 6 modular jack assemblies. The data jack shall be
the lower port(s) in the wall plate. If only one data jack, it
should be terminated in the lower left port. Wire color coding
shall be per EIA/TIA-568B specifications.
shall be terminated on both voice and data jacks.
total wire path length from the data outlet to the
telecommunications room block must not exceed 295 feet (90
meters). This is important to meet Ethernet requirements of IEEE
802.3. Please note that in most cases the TC which houses network
electronics will service both the voice and data jacks on the
floor it is on. This must be considered when determining adherence
to the maximum length for the data outlet wiring.
- 3.1.2 LABELING
Each end of all cables will
be labeled at their termination locations.
modules shall be color coded to University of Mississippi
standards indicating that the top left jack is voice (blue) and
that the bottom left jack is data (red). The faceplate shall be
Horizontal mounted jack positions shall be voice
on the left and data on the right.
jacks will utilize a single gang or double gang position face
plate with voice jacks in the top two positions, data jacks in the
bottom two positions and blank fillers in the spare positions.
All jacks shall be marked with identification numbers
as detailed below.
Telecommunications Center will
provide the identification number range to be used for the
building(s). Upon project completion, the installing contractor or
designee of Telecommunications Center a list of jack
identification numbers used, their corresponding room numbers,
location within the room, and punch block or data panel
termination points. Jack identification numbers, at the jack
locations, shall also be placed on the as built drawings provided
by the contractor.
- 3.1.3 WIRING
Wiring for voice lines must be BLUE category 6 or greater as specified in the plans or specifications. Wiring for data circuits must be RED category 6 or greater as specified in the plans or specification.
Note: Level 3, 24 AWG UTP
wiring is only to be used for voice riser cable.
3.2 COMMUNICATION OUTLET LOCATION
- 3.2.1 LOCATIONS AND QUANTITIES
otherwise specified, a Standard Communications Outlet (SCO), shall
consist of a voice jack, a data jack, and two spare ports. Other
communication outlets may be installed depending on the function
for that particular office or room.
NOTE: * One TV outlet in the
front of room and another in the ceiling for projection TV. If the
classroom is designated as a High Tech Classroom, then the High
Tech Classroom requirements in Section 4. may supersede the CATV
outlet requirements listed above.
- Faculty Offices: Two (2) SCOs per designated occupant.
Outlets are to be installed on opposite walls. Any wall greater
than 15 ft. in length shall have outlets spaced evenly apart at
no more than 7 ft. intervals. Any wall greater than 15 ft. in
length shall have outlets spaced evenly apart at no more than 7
- Clerical/Staff Offices/Graduate Student Offices: One (1) SCO
at the location of each desk.
- Conference Rooms: One (1) SCO and one CATV outlet per room
for rooms up to 200 square feet. A minimum of four (4) SCOs and
two CATV outlets per room for rooms over 200 square feet. One
(1) SCO shall be located on each wall. CATV outlets will be
opposite from each other. Rooms with more than 500 square feet
shall have additional outlets equally spaced on each wall. CATV
outlet can be incorporated into a SCO spare port.
- Laboratories: One (1) SCO for each desk space. One ADA wall
mount height jack located inside laboratory near doorway for
wall mounted telephone. Additional outlet requirements will be
determined based on size and in the design phase of the project.
- Classrooms/Lecture Halls/Auditoriums: Classrooms with
teaching stations are required to have two (2) communication
jacks. One designated for data, one spare. A video cable shall
also be installed at the teaching station. Classrooms without a
teaching station shall use the following guidelines for video
- Number of Jacks: 1 Student Occupancy: 1-15 Student CATV
- Number of Jacks: 2 Student Occupancy: 15-50 Student CATV
- Number of Jacks: 4 Student Occupancy: 50-More Student CATV
- Residence Hall Rooms: One (1) data communication jack per
occupant or potential occupant of each room. One (1) telephone
jack per room. One (1) CATV outlet per room. The locations will
be determined during design stages of the project.
- Residence Hall Lounges: One (1) or more communication jacks
and one (1) CATV outlet per lounge. The quantity and locations
will be determined during design stages of the project.
- Storage Areas: One (1) communication outlet per room. Two
(2) outlets for rooms over 500 square feet and one (1)
additional outlet for each additional 2000 square feet.
- Mechanical Rooms: Consult the Physical Plant.
- Some rooms require communications outlets for telephones or
energy management devices.
- Main Cross-connect Room and Telecommunication closets: One
(1) communication jack per room minimum.
3.3 COMMUNICATION OUTLET INSTALLATION
- 3.3.1 MOUNTING
Use a dual gang outlet box
similar to Steel City, part number 72171-3/4 or Telecommunications
Center approved equivalent. When mounting the outlet box in a
steel studded wall, use a back brace. Use Steel City plaster
rings, part number 72-C13, (single gang) or 72-C-17 (double gang)
or the Telecommunications Center approved equivalent. It is
absolutely critical that the inside opening area match the outlet
installation enclosure. The plaster rings must be level and
positioned flush with the finished surface. For single voice/data
outlets use a single gang plaster ring.
Outlets are to
be mounted at standard industry heights and positions, unless
otherwise specified by the Facilities Planning and/or
Telecommunications Center. Standard mounting height of
Electrical outlets shall be provided for TV and projection devices
by contractor or Physical Plant.
- Desk 18 inches, AFF (above finished floor)(Single gang
- Handicapped wall mount 48 inches, AFF (Single gang plaster
- High Tech Classroom (See Section 4).
- CATV cable in classroom, auditorium, clinic lobby or lounge
is normally installed at the height of TV mounting. CATV cable
in offices, dorm rooms, or conference rooms is to be
incorporated into the communications outlet.
3.4 COMMUNICATION JACKS
- 3.4.1 At each jack location Category 6 enhanced components
shall be installed. For each pair of cables a Panduit 106 frame is
required. All conduit and makeup boxes at each workstation jack
shall be at least 2-1/8" deep. If installation is in a single gang
EMT or Makeup box, a Single Gang Faceplate is needed. If
installation is in a double gang box, a Double Gang Faceplate is
- 3.4.2 Panduit 106 Data Frame inserts shall be used in the
connector housing. Single inserts or dual inserts shall be used
for voice, and Category 6 enhanced inserts shall be used for data.
If no insert is required, a blank cover shall be installed. Part
numbers for the inserts are as follows:
Note: xx is a
color designator to match the faceplate and 106 frames.
- Red Category 6 Inserts Panduit CJ688TPRD
- Blue Category 6 Inserts Panduit CJ688TPBU
- Blank Inserts Panduit CMFBAxx
- F81 Splice Barrel Connector CMFBAxx
- 3.4.3 Voice (blue) is on the left; Data (red) is on the
right of the 106 frames.
3.5 WIRING PATHWAYS
- 3.5.1 GENERAL
To avoid electromagnetic
interference (EMI), all pathways should provide clearance of at
In general, communications cabling is routed
separately or several feet away from power cabling. Similarly,
communications cabling is routed away from large motors,
generators, induction heaters, arc welders, x-ray equipment, and
radio frequency, microwave or radar sources. Whenever possible,
pathways should cross perpendicular to fluorescent lighting and
electrical power cables or conduits.
- 4 feet (1.2 m) from motors or transformers
- 1 foot (0.3 m) from conduit and cables used for electrical
- 5 in. (12 cm) from fluorescent lighting or power lines over
2kVA and up to 24 inches from any power line over 5kVA.
- 3.6.1 GENERAL
All conduit work shall meet
the requirements of the National Electrical Code.
voice, data and video wiring inside rooms shall be protected by
metallic conduit or other means such as wire mold or troughs in
the floor. Aluminum is not acceptable in caustic environments.
Plastic surface mount molding is not acceptable in any
application. EMT conduit or metal surface mount molding shall be
used for all interior wiring. All conduit is to be concealed
No more than an equivalent of two
(2) 90 degree bends are allowed in a run between junction boxes or
No 90-1/4 conduit (LBs) are permitted.
Entrance to junction boxes or distribution panels shall
be adjacent to the corners or directly across from each other.
The use of plenum cable instead of conduit shall be
determined on a case by case basis. Telecommunications Center must
be contacted for approval.
In major renovation and new
construction projects where the Main Cross-connect Room and
Telecommunication Closets are not in alignment, the contract shall
include provisions for installation of four (4) riser conduits (4
inches minimum diameter) from the MC to each TC. A pull string and
appropriate junction pull box shall also be provided in each
conduit run to facilitate future installation of cable(s).
To reduce EMI, all conduit in slab shall be a minimum
of 1 1/4 inches galvanized steel with threaded fittings. All
exceptions shall be determined during the design stage of the
project and shall be subject to the approval of Telecommunications
All sleeves must protrude four (4) inches AFF
and below and be capped at both ends. Coordinate with
Telecommunications Center for the number of conduits entering the
No horizontal conduit run shall be more than
80 feet between pull boxes.
Conduit for telephone or
computer outlets shall be terminated in a dual gang box. Steel
City, part numbers 52151-1, 72151-1, 52-C-17 or 72-C-17 for one
(1) inch with dual gang plaster ring and 52151-3/4, 72151-3/4,
52-C-13 or 72-C-13, for 3/4 inch with single gang plastic ring.
Telecommunications Center approved equivalents to the Steel City
part numbers may be used.
All communications outlets
shall be minimum 3/4 inch conduit, with a minimum of bends, from
the outlet to the cable tray, wire way or homerun directly to the
telecommunications room. Home run conduit is required when the
cable path above the ceiling is not easily accessible. Examples of
ceilings where conduit is required include dry wall and
interlocking ceiling tiles. Pull boxes must be installed every 180
degrees or 80 feet of the conduit run. See Section 4. for conduit
installation requirement for High Tech Classroom outlets.
- 3.6.2 CONDUIT CAPACITY
Conduit shall be
sized using industry standard guidelines for telecommunications
distribution methods. Such guidelines can be found in the Building
Industry Consulting Service International (BICSI)
Telecommunications Distribution Methods Manual.
3.7 LADDER/CABLE/WIRE TRAYS
- 3.7.1 GENERAL
All ladder trays shall be
designed to accommodate all types of communication cabling,
consequently any cable work that pertains to telecommunications
must be designed and/or approved by Telecommunications Center.
The minimum dimensions for a ladder tray shall be 12
inches wide and 4 inches deep. In certain instances, only when
indicated in the design specifications, a 6 inch wide by 3 inch
deep tray may be used.
Contract documents shall show
cross section of the communication wire way or cable tray. The
drawing must show reference to other utilities in the building.
All conduits terminating at a cable tray must be easily
accessible. Avoid ending conduits at tray in locations that are
not accessible by removable ceiling tile or ceiling access panel.
All conduits which are to be connected to the cable tray are to be
connected according to the manufacturer’s specifications and must
meet the NEC.
Consideration may be given for
installation of other types of cables in a ladder tray to prevent
interference on unshielded cables. Location of such installation
shall be approved by Telecommunications Center.
tray (cable tray) or wire way is to be supported with allthread
rods in a trapeze form. Supports for cable trays larger than 12
inches in width are to be installed according to the
manufacturer’s specifications. Supports for cable trays 12 inches
or less may be farther apart but must meet the manufacturer’s
installation requirements. A single support is not acceptable. All
supports are to be fastened to the building structure above.
Telecommunications Center or its designee will not
install any cable or perform any work until all installations are
made to comply with specifications.
- 3.7.2 MOUNTING
Cable trays must maintain a
minimum of six (6) inch clearance from obstructions above the tray
and a minimum of eight (8) feet AFF. Trays are to provide access
via the most direct path to all communications outlets on the
Install sweeping factory 90's for all turns. Use
end-of tray termination's where wire drops down to walls to
prevent abrasions and cuts from metal tray edges. Use a trapeze
cable tray mounting method suspended by manufacturer recommended
size allthread. Fasten allthread to ceiling anchors, allowing no
bends in allthread. Support the cable tray in this manner at every
section-to-section junction and at five (5) feet to six (6) feet
intervals (mid span) between joints. Whenever possible, the tray
should be no closer than six (6) inches from the structural
ceiling, ducts or pipes, considering all other possible
obstructions. A minimum of 5 inches distance from lighting,
especially fluorescent lighting, is required.
3.8 OPEN TOP CABLE SUPPORTS AND RINGS
- 3.8.1 GENERAL
184.108.40.206 All open top cable supports
(J-supports) and cable rings must be suspended from or attached to
the structural ceiling or walls with hardware or other
installation aids specifically designed to support their weight.
When used, J-supports or cable rings shall be located on 48 to 60
inch centers to adequately support and distribute the cables
weight. These types of supports may typically hold up to fifty
0.25 inch diameter cables.
220.127.116.11 For larger quantities of
cables that convene at the Telecommunication Closets, provide
cable trays or other special supports that are specifically
designed to support the required cable weight and volume.
18.104.22.168 Hooks and straps shall be attached to building members
with fasteners appropriate for the material. Wood screws or lag
bolts shall be used for wood, wood screws with plastic anchors
shall be used for plaster and concrete, and self-taping screws
shall be used for sheet metal. Threaded metal hooks attached to
threaded anchors are also acceptable.
22.214.171.124 Unistrut may be
used where necessary to support large bundles of cables or to
provide attachment points for EMT, metal Makeup, or Panduit
raceway. Unistrut allthread hangers shall be mounted with threaded
126.96.36.199 Large hooks that will carry the weight of
many cables shall be attached with lag bolts, metal concrete
anchors, or metal anchors with epoxy. The anchors shall extend
into the mounting material at least 3 inches.
and hooks shall be oversized so that additional cables can easily
be installed in the future. Hooks and straps shall be filled to no
more than 75% of the capacity.
188.8.131.52 Hooks or straps shall
be mounted no more than four feet apart. Closer spacing may be
necessary in areas where cables are routed around corners or are
in close proximity to other mechanical electrical systems.
184.108.40.206 In special cases where the area above lay-in ceilings
has obstructions and attaching straps to the ceiling is difficult
or impossible, straps can be attached to metal clips mounted on
wire hangers that hold up the ceiling grid.
cables are installed in the wall no box is required, but a
mounting bracket shall be mounted securely in the wall.
220.127.116.11 All conduit and makeup boxes at each workstation jack
shall be at least 2-1/8" deep. This depth is required to
accommodate the Category 6 enhanced (CAT6) jack. When a box is used as
both a jack and pull box, the minimum box depth shall be 3-1/8".
If fiber is installed in the box an Ortronix extender plate is to
18.104.22.168 In instances where EMT (metal conduit) is
used, all empty conduits shall contain a pull string. A pull box,
splice box, or pulling point containing pull strings in each
direction shall be installed for any constrained pathway where
there are more than two 90 degree bends, a 180 degree reverse bend
or length greater than 100 feet.
22.214.171.124 Cable in exposed
finished areas shall be installed in raceway such as EMT conduit,
metal Makeup, or Panduit.
3.9 UNDERFLOOR DUCT SYSTEM
- 3.9.1 GENERAL
This type of raceway is to be
used minimally at all costs. Care must be taken to design a system
that will consider electrical and communications requirements.
Adequate electricity must be available at all locations. With
proper planning, an adequate system can be installed but it is