Dufferin-Peel Catholic District School Board
STANDARD TEXT GUIDELINE FOR
Computer Cabling System
FOR NEW CONSTRUCTION OF
ELEMENTARY AND SECONDARY SCHOOLS
Prepared by the IT Department
Formatted by the Design Department
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PROPRIETARY AND REMAINS THE PROPERTY OF THE DUFFERIN-PEEL
CATHOLIC DISTRICT SCHOOL BOARD. THIS DOCUMENT MAY NOT BE USED IN ANY WAY, OTHER THAN AS AUTHORIZED BY THE
DESIGN DEPARTMENT OF THE DUFFERIN-PEEL CATHOLIC DISTRICT SCHOOL BOARD. BY RECEIPT OF THIS DOCUMENT, THE
RECIPIENT ACKNOWLEDGES AND AGREES TO THIS CONDITION.
COMPUTER
CABLING SYSTEM
TABLE OF CONTENTS
Elementary & Secondary Schools (Enhanced Category 5)
1
GENERAL ....................................................................................................................................... 1
1.1 SPECIAL NOTES ............................................................................................................................. 1
2
PURPOSE ...................................................................................................................................... 1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
3
PRODUCTS .................................................................................................................................... 6
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
4
WORK INCLUDED ........................................................................................................................... 2
SUBMITTALS .................................................................................................................................. 2
QUALITY ASSURANCE..................................................................................................................... 2
SCOPE OF WORK ........................................................................................................................... 3
SYSTEM TESTING........................................................................................................................... 3
STANDARDS .................................................................................................................................. 3
WARRANTY ................................................................................................................................... 5
INSTALLATION WARRANTY .............................................................................................................. 5
CABLING SYSTEM WARRANTY ......................................................................................................... 5
REFERENCES ................................................................................................................................ 6
HORIZONTAL CABLING.................................................................................................................... 6
COPPER CABLE TERMINATIONS ...................................................................................................... 6
DATA OUTLETS .............................................................................................................................. 6
RACKMOUNT PATCH PANELS .......................................................................................................... 7
PATCH CORDS ............................................................................................................................... 8
RACKS .......................................................................................................................................... 8
ACCEPTABLE MANUFACTURERS ..................................................................................................... 9
EXECUTION ................................................................................................................................... 9
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
INSTALLATION OF CABLING - GENERAL ............................................................................................ 9
INSTALLATION OF PATCH PANELS AND ACCESSORIES .................................................................... 10
COPPER CABLE INSTALLATION ...................................................................................................... 10
PENETRATION THROUGH FIRE WALLS ........................................................................................... 11
INSTALLATION OF OUTLETS .......................................................................................................... 11
ELECTROMAGNETIC INTERFERENCE SEPARATION.......................................................................... 12
SYSTEM IDENTIFICATION .............................................................................................................. 12
CABLE IDENTIFICATION ................................................................................................................ 12
WIRE CENTRE CODE - PATCH PANEL AND PORT NUMBERS .............................................................. 13
CABLE TESTING AND SYSTEM CERTIFICATION ................................................................................ 13
i.)
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
1
GENERAL
1.1
SPECIAL NOTES
1.1.1
This is not a specification. It is a Guideline indicating typical wiring for the
Computer Cabling System and is reproduced here for the information to the
Consultants.
1.1.2
The wiring described herein for the Computer Cabling System is to be carried
as an Allowance in the Contract Documents.
1.1.3
The Computer Cabling System is installed by Sub-Contractor(s) in direct
contractual agreement with the Board, separate from the General Contract.
1.1.4
The conduit, back boxes, raceways, wiremold, cable troughs etc. to
accommodate the Computer System and associated wiring, as described in
both the Elementary and Secondary School Guidelines, Design Criteria and
Fitments is, however, included in the Contract Documents.
1.1.5
It is the Consultant's responsibility to insure that these Guidelines are
coordinated with the Contract Documents, in the appropriate sections.
2
PURPOSE
2.1.1
The intent of this document is to provide a standard guideline that will be
used for all Elementary and Secondary Schools, both educational and
administrative facilities requiring cabling installation. This Guideline provides
the minimum performance criteria for the components and sub-systems
comprising a complete cabling system that shall accommodate The DufferinPeel Catholic District School Board (The Board) infrastructure requirements
in excess of ten years.
2.1.2
Product specifications, general design considerations, and installation
guidelines are provided in this written document. Typical quantities of
Telecommunications outlets, typical installation details, and cable routing are
defined in the Board’s Design Criteria & Fitments Guidelines.
2.1.2.1
2.1.3
A schedule of actual quantities and locations for any specific
educational facility will be provided as an attachment to this
document by the design firm. If the bid documents are in
conflict, the written specification shall take precedence. The
successful vendor shall meet or exceed all requirements for the
cabling system described in this document.
The Board’s cable infrastructure project requires an AMP 110 CONNECT
System structured cabling system. If all requirements are complied with, the
cabling system shall be backed by an AMP 25-Year Performance Warranty.
The performance warranty shall be facilitated by the Contractor and be
established between AMP and the Board.
Page 1 of 13
GUIDELINE
COMPUTER
CABLING SYSTEM
Elementary & Secondary Schools (Enhanced Category 5)
2.1.4
2.2
2.2.1
2.3
The successful contractor is required to furnish all labour, supervision,
tooling, and miscellaneous mounting hardware and consumables for the
cabling system installed excluding the network electronics. The contractor
shall maintain current “Good” status as a TE CONNECTIVITY Design and
Installation (ND&I) contractor, including all training requirements, for the
duration of the project. The Contractor shall staff each installation crew with
the appropriate number of trained personnel, in accordance with their AMP
ND&I contract agreement, to support the 25-Year Performance Warranty
requirements. After installation, the Contractor shall submit all documentation
to support the warranty requirements in accordance with the warranty
requirements, and to apply for said warranty on behalf of the Board. The
warranty will cover the components and labour associated with the
repair/replacement of any defective link within the warranty period, when the
defect is a valid warranty claim.
WORK INCLUDED
Comply with Electrical General Provision Section 16010 and all other
documents referred therein.
SUBMITTALS
2.3.1
Submit shop drawings for equipment and accessories specified in this
Section.
2.3.2
Submit complete cabling system layout drawings and manufacturers
component literature. Include manufacturer’s literature on cabling, jacks,
faceplates, terminal cabinets, etc. and cabling test sheets. Cabling shop
drawings and data sheets must be reviewed and approved by the Board’s
Network Department prior to ordering.
2.3.3
The cabling system layout, routing and design must be approved by a RCDD
(Registered Communications Distribution Designer). The design shall meet
or exceed BICSI (Building Industry Consulting Services International)
standards. RCDD registration number must be included.
2.3.4
Submit samples of jacks, faceplates and cabling with shop drawings. Do not
order components unless approved by the Board’s Network Department.
2.3.5
Prepare and submit “As-Built” drawings approved by a Registered
Communications Distribution Designer (RCDD). RCDD registration number
must be included.
2.4
2.4.1
QUALITY ASSURANCE
All companies shall be CSA and for ULC approved listed and labeling.
Page 2 of 13
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
2.5
SCOPE OF WORK
2.5.1
This Guideline defines the cabling system and subsystem components to
include cable, termination hardware, supporting hardware, and miscellany
required to furnish and install a complete cabling infrastructure supporting
voice, data, and video.
2.5.2
The intent of this Guideline is to provide pertinent information to allow the
vendor to bid the labour, supervision, tooling, materials, and miscellaneous
mounting hardware and consumables to install a complete system. However,
it is the responsibility of the vendor to propose any, and all, items required for
a complete system whether or not it is identified in the specification, drawings
and bill of materials attached to this Guideline.
2.6
2.5.2.1
Provision of cabling system for the compete networking of a
school which can support the use of intelligent switching HUBS
with Network Management capabilities.
2.5.2.2
Organized wiring in a structured cabling system using point to
point distribution system incorporating modular terminations.
2.5.2.3
Provisions of horizontal cable to workstations, data communications outlets patch panels and associated equipment.
SYSTEM TESTING
2.6.1
The local area network system must be “protocol neutral” and provide users
access into a variety of resources from any locations within the school. An
Ethernet backbone shall be utilized for the system with intelligent switches
coordinating and managing data flow. The wiring configuration is based on a
“physical star” topology in which cabling runs emanate in a radial pattern from
the main data communications room. (Server Room)
2.6.2
Technical features of the structural cabling plan include:
2.7
2.7.1
2.6.2.1
The use of Enhanced Category 5, cabling to each workstation.
2.6.2.2
Use of modular Enhanced Category 5 jacks at both ends of
cabling runs.
2.6.2.3
Use of 50/125m Multimode Fiber OM3 for inter-closet link
greater than 90m. The jacket colour shall be aqua with SC style
terminations end to end.
2.6.2.4
All inter closet links must contain 2 physical “homerun” tie lines
whether it is copper or fiber depending distance.
STANDARDS
The cabling system described in this Guideline is derived in part from the
recommendations made in industry standard documents.
The list of
documents below have bearing on the desired cabling infrastructure and are
incorporated into this Guideline by reference:
Page 3 of 13
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
2.7.2
This Technical Guideline and Associated Drawings:
2.7.2.1
ANSI/TIA-C.0, Generic Telecommunications
Customer Premises, and its published addenda.
Cabling
2.7.2.2
ANSI/TIA-568-C.1, Commercial Building Telecommunications
Cabling Standard and its published addenda.
2.7.2.3
ANSI/TIA-568-C.2, Copper Cabling Components Standard, and
its published addenda.
2.7.2.4
ANSI/TIA-568-C.3, Optical Fiber
Standard, and its published addenda.
2.7.2.5
ANSI/TIA/EIA-569-B,
Commercial
Standard
for
Telecommunications Pathways and Spaces, and its published
addenda.
2.7.2.6
ANSI/TIA/EIA-606-B,
Administration
Standard
for
the
Telecommunications Infrastructure of Commercial Buildings,
and its published addenda.
2.7.2.7
ANSI/J-STD-607-B, Commercial Building Grounding (Earthing)
and Bonding Requirements for Telecommunications, and its
published addenda.
2.7.2.8
ANSI/TIA-942, Telecommunications Infrastructure Standard for
Data Centres, and its published addenda
2.7.2.9
Building Industries Consulting Services International (BICSI)
Telecommunications Distribution Methods Manual 12th Edition
(TDMM) – 1966.
Cabling
for
Components
2.7.2.10 National Fire Protection Agency (NFPA) – 70, National Electrical
Code (NEC) – 2011.
2.7.2.11 TE CONNECTIVITY
Agreement (current).
Design
and
Installation
Contractor
2.7.3
If a conflict exists between applicable documents, then the order in the list
above shall dictate the order of precedence in resolving conflicts. This order
of precedence shall be maintained unless a lesser order document has been
adopted as code by a Local, Provincial or Federal Authority Having
Jurisdiction. If a conflict exists, documents adopted as code shall take
precedence.
2.7.4
If this document and any of the documents listed above are in conflict, then
the more stringent requirement shall apply. All documents listed are believed
to be the most current releases of the documents, the vendor is responsible
to determine and adhere to the most recent release when developing the
proposal for installation.
2.7.5
All work must be installed by system manufacturers certified systems
installers/vendors who are certified and experienced in implementing the
Page 4 of 13
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
selected data cabling system and to perform related testing programs. Dates
of certification of both installers and company must be submitted.
2.7.6
2.8
2.8.1
2.9
2.9.1
The cabling system layout must be performed by a RCDD and defined by
Building Industry Consulting Service International (BICSI).
WARRANTY
The contractor shall provide a system warranty covering the installed cabling
system against defects in workmanship, components, and performance, and
follow-on support after project completion for a period of one year.
INSTALLATION WARRANTY
The contractor shall warrant the cabling system against defects in
workmanship for a period of one year from the date of system acceptance by
the Board. (The customer/designer will need to define terms of acceptance
the bidders will need to meet.) The warranty shall cover all labour and
materials necessary to correct a failed portion of the system and to
demonstrate performance within the original installation specifications after
repairs are accomplished. This warranty shall be provided at no additional
cost to the Board.
2.10 CABLING SYSTEM WARRANTY
2.10.1 The Contractor shall facilitate the 15-Year Performance Warranty between
AMP Incorporated and the Board. The performance warranty shall warrant
properly installed 100 MHz horizontal copper and both the horizontal and the
backbone optical fiber portions of the cabling system. Copper links shall be
warranted against the link performance minimum expected results as defined
in the TIA/EIA 568A, TSB-67, and the AMP ND&I Contractor Agreement.
Fiber optic links shall be warranted against the link and segment performance
minimum expected results defined in the TIA/EIA 568A, Annex H and the
AMP ND&I Contractor Agreement.
2.10.2 The system manufacturers shall provide a minimum twenty five (25) year
performance warranty on all passive components including the structural
cabling system. These warranties shall be provided in written certificate form.
2.10.3 The system manufacturers shall provide in writing to the owner that in event
of the demise or failure of the installing certified system installer, the
manufacturer shall be responsible for providing another certified system
installer/vendor to fulfill the remainder of the warranty conditions.
2.10.4 The contractor shall provide a guaranteed twenty-four (24) hour response
time to any warranty claims.
2.10.5 Contractors must ensure that the selected network cabling component
manufacture and the wiring manufacture must have contractual relationships
to ensure that the system warranty is a true “end to end” structured cabling
system warranty.
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COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
3
PRODUCTS
3.1
3.1.1
3.2
3.2.1
REFERENCES
Refer to appropriate Sections 16100.
HORIZONTAL CABLING
The horizontal cabling to workstations shall be FT6 (i.e. suitable for use in
plenum environments), UTP cal and shall comply with EIA/TIA TSB-36
requirements for Enhanced Category 5. The cable specification shall be:
3.2.1.1
Conductors: 4 pair, 24 AWG solid copper conductors,
unshielded twisted pair.
3.2.1.2
Cable grade: Enhanced Category 5
3.2.1.3
Overall sheath: FT6 rated, blue coloured outer sheath
3.2.1.4
Worst pair near end crosstalk loss <32 dB/1000 ft. (32 dB/300
M) @ 100 Hz.
3.2.1.5
Maximum mutual capacitance: 17 pF/ft. (17pF/300M).
3.2.1.6
D.C. resistance: 28.6 ohms/1000ft (28.6 ohms.300 M)
3.2.1.7
Fitted impedance 100+/-5 at 1 MHZ and 100 ± 3 from 4 to 100
MHZ.
3.2.1.8
Maximum signal attenuation: 67dB/1000 ft. (67 dB/300 M) @
100 MHz
3.2.1.9
Maximum length: 300 ft. (90 m) ok.
3.2.1.9.1 Manufacturers: TE Conductivity Enhanced Category 5
cables (TE520P-BL02)
3.2.2
Backbone links under 90 m shall be FT6 Copper as above. Backbone links
over 90 m shall be multimode fibre.
3.2.3
The backbone links over fibre shall be FT6 (i.e. suitable for use in plenum
environments), using 50/125m multimode cable. TE Connectivity #31553312-9 (12 strand)
3.3
3.3.1
3.4
3.4.1
COPPER CABLE TERMINATIONS
The “Structured Cabling Plan” is an end to end solution, which includes the
data communications outlet, patch cord at the workstation, patch panel and
patch cords at the HUB Room.
DATA OUTLETS
Modular outlets shall meet the following specification:
Page 6 of 13
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
3.4.1.1
Workstation outlets shall be of a type that will support multiple
data and telecommunications systems interface requirements
without re-termination of the building wiring.
3.4.1.2
Adaptation to communications equipment requirements shall be
through the use of adapter inserts that provide the required
connector interface.
3.4.1.3
Connection of the outlet to twisted pair building wiring shall be
through 110-style contacts which will terminate 22-26 AWG
solid or stranded conductors.
3.4.2
Work area jacks shall be comprised of TE Connectivity Enhanced Category
5, Unshielded jacks SL Series AMP #1375191-2 Black with strand relief caps
AMP #1375200-2.
3.4.3
Flush wall mounting faceplate to fit on a single gang recessed outlet box shall
be plastic or stainless steel as appropriate:
Stainless Steel 2-port Flush Faceplate - 1FM-00E-AMP
Stainless Steel 4-port Flush Faceplate - 1FM-(4)0E-AMP
Stainless Steel 6-port Flush Faceplate - 1FM-(6)0E-AMP
3.4.4
Enhanced Category 5 Certified.
3.4.5
Complete with labelling provisions.
3.4.6
Unused Faceplate ports shall be blanked off with 110Connect Multimedia
Blank Insert - 406339-1.
3.5
RACKMOUNT PATCH PANELS
3.5.1
Patch panels, which terminate horizontal twisted pair distribution cables, shall
mount on an EIA standard 490 mm (19") equipment rack.
3.5.2
Copper patch panels shall be TE CONNECTIVITY Enhanced Category 5
Patch Panels SL Series, AMP part #: 12 port – 1479153-2, 24 port –
1479154-1, 48 port – 1479155-2.
3.5.3
Fiber patch panels shall be AMP 2 or 4U rack-mount enclosure as required
for strand count.
2U Rack Mount Enclosure,
Unloaded with Plastic Front Door
SC Duplex Multimode Snap in Plate
Blank Snap in Adapter Plate
3.5.4
Fiber jacks shall be SC Duplex type using SC 6-Fibre Multimode OM3 SC
snap-in adjustable plate 559516-1.
Page 7 of 13
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
3.5.5
The patch panel system shall include all required accessories such as bezels,
connectors, jumpers and retaining rings, interlay racking panels, horizontal
wire managers etc. to provide for patch cord management.
3.5.6
Each patch panel shall be provided with a horizontal cable management
panel. This panel shall be AMP part number 558329-1.
3.5.7
Patch panels installed in the main network closet cabinet must be mounted
4U from the top of the cabinet rails.
3.5.8
All copper tie lines from closets and lab are to be terminated in the main LAN
cabinet on a separate patch panel mounted above the rest of the patch panel
for regular data drops.
3.6
PATCH CORDS
3.6.1
Copper patch cords shall be TE CONNECTIVITY patch cables, No. 24 AWG
stranded copper, Enhanced Category 5, ISDN wired, at the patch panel end.
Provide patch cords in lengths specified in the Board” Design Guidelines.
3.6.2
Provide a total quantity of wire centre patch cords to match the number of
horizontal cable runs. Provide a total quantity of workstation patch cords to
match the number of horizontal cable runs.
3.6.3
Fibre patch cords shall be AMP SC-LC Multimode 50/125 m or approved
equivalent.
3.6.3.1
3.6.4
3.7
Reserved.
Patch cords shall be in two lengths depending on location:
3.6.4.1
For computer labs, two patch cords shall be provided with
each drop installed; one @ 600 mm (2 ft.) length and one @
900 mm (3 ft.) length.
3.6.4.2
For all other locations, two patch cords shall be provided with
each drop installed; one @ 900 mm (3 ft.) length and one @
2,140 mm (7 ft.) length.
RACKS
3.7.1
All Patch Panels will be housed in full-size standard communications cabinets
or wall-mounted swing-out cabinets as specified for the location. Unless
specified otherwise, the primary wiring centre shall be equipped with a fullsize standard communications cabinet and all secondary wire centers will be
located in a wall mounted swing-out cabinet.
3.7.2
A standard full-size communications cabinet shall be one of the following
specifications:
3.7.2.1
(Width x Depth x Height) = 30” x 42” x 83”
3.7.2.2
2 pairs of Cage Nut rails (1pair mounted in the front and the
other pair in the back)
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COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
3.7.3
3.7.4
3.8
100 Cage nuts
3.7.2.4
Two (2) Vertical power strips
3.7.2.5
Two (2) side panels
3.7.2.6
Two (2} doors (1 front and 1 back)
3.7.2.7
One (1) pair of vertical cable management rails on the back
A standard wall-mounted swing-out cabinet shall be one of the following
specifications:
3.7.3.1
(Width x Depth x Height) = 28” x 25” x 23”
3.7.3.2
Standard 19” EIA Mounting Angles with 10-32 tapped holes
3.7.3.3
Vertical Cable Management
A standard wall mounted low profile cabinet shall consist of the following:
3.7.4.1
Panduit PANZONE PZAEWM3 Active Wall mount Enclosure
3.7.4.2
Or equivalent pre-approved by the Board ICT department
ACCEPTABLE MANUFACTURERS
3.8.1
3.8.2
4
3.7.2.3
Acceptable network cabling component and wiring manufacturers shall
include the following companies:
3.8.1.1
TE CONNECTIVITY
3.8.1.2
RF MOTE
3.8.1.3
PANDUIT
3.8.1.4
HUBBLE
All LAN cabinets, racks and enclosures are subject to approval by the Board
prior to purchase and installation.
EXECUTION
4.1
INSTALLATION OF CABLING - GENERAL
4.1.1
All cables must be properly handled and installed in accordance with the
manufacture specifications. Undue pulling tension, abrasion or rough
handling must be avoided to ensure that the cables will permit transmission
up to the design speed of 100 Mb/s.
4.1.2
All cables must be installed without splices or cuts to ensure the elimination
of reflections, discontinuities, impedance mismatches, etc. The maximum
horizontal length from the workstation to the HUB shall not exceed 90 m
(300 ft.)
4.1.3
Wiring shall be mechanically protected by runs in cable tray or down drops in
conduits.
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COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
4.1.4
4.2
4.2.1
4.3
Examination of the work site conditions should be completed before
installation commences. If any discrepancies exist, report them to the Board.
Installation of any part of the work will be construed as acceptance of such
conditions as being satisfactory.
INSTALLATION OF PATCH PANELS AND ACCESSORIES
Provide patch panels onto racks in locations as shown by the design firm in
the attached schedule. Provide terminating hardware and connectors to suit
incoming an outgoing cabling. Clearly identify each port. Install all devices in
accordance with system manufactures requirements.
COPPER CABLE INSTALLATION
4.3.1
All horizontal UTP cables shall be continuous from end to end with no splices.
Horizontal cables shall be installed in Star topology, emanating from the rack
mounted patch panel(s) and terminating on data outlet faceplates in
classrooms or other workstation locations.
The maximum length for
horizontal cables shall not exceed 90 m (300 ft.). The maximum length for
patch cords at workstations shall not exceed 7,650 mm (25 ft.) The
maximum length for patch cords at the patch panel shall not exceed
3,000 mm (10 ft.).
4.3.2
Unless otherwise noted, all horizontal cabling shall be installed in conduit, or
run in a cable tray.
4.3.3
The following criteria must be met for conduit installation:
4.3.4
4.3.3.1
For straight runs up to 17 m (50 ft.), the cables may occupy up
to 40% of the conduit area.
4.3.3.2
For conduit runs between 17 m (50 ft.) and 30 m (100 ft.) the
cables may occupy up to 33% of the conduit area.
4.3.3.3
For runs over 30 m (100 ft.) the cables shall not exceed 25% of
the conduit area.
4.3.3.4
Each 90 degree conduit bend shall be considered as the
equivalent of two (2) @ 90o bends exist in the conduit run or if
the run exceed 60 m (200 ft.).
4.3.3.5
A pull box must be installed when more than the equivalents of
two (2) @ 90o bends exist in the conduit run or if the run
exceeds 60 m (200 ft.).
Cables and conduits shall be installed following building lines. Under no
circumstances shall cables or conduits be fastened to suspended ceiling
support systems. Cables and conduits shall be supported to building
structure independent of other systems.
4.3.4.1
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All conduit systems shall be left with a nylon fish string to allow
for future cables.
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
4.4
4.3.4.2
Bending radius shall not be tighter than four (4) times the cable
diameter.
4.3.4.3
Terminations shall involve as little outer jacket removal as
possible and cable pairs “untwisting” shall not exceed ½”
(13 mm).
4.3.4.4
Slack cable must be provided to allow for minor workstation
relocations.
A coil of slack cable of an approximate
6 ft. (2 m) length shall be provided above workstation locations.
PENETRATION THROUGH FIRE WALLS
4.4.1
A conduit sleeve shall be provided where horizontal cables penetrate
firewalls. The conduit sleeve shall be sized at 40% fill ratio with a plastic
bushing at both ends.
4.4.2
After the conduit sleeve is installed, the opening around the conduit shall be
filled with ULC listed fire stop and mask seal material.
4.5
INSTALLATION OF OUTLETS
4.5.1
Cables shall be coiled in the in-wall or surface-mount boxes if adequate
space is present to house the cable coil without exceeding the manufacturers
bend radius.
4.5.2
In hollow wall installations where box-eliminators are used, excess wire can
be stored in the wall. No more than 12” of slack shall be stored in an in-wall
box, modular furniture raceway, or insulated walls.
4.5.3
Excess slack may be neatly coiled and stored in the ceiling above each drop
location when there is not enough space present in the outlet box to store
slack cable.
4.5.4
Cables shall be dressed and terminated in accordance with the
recommendations made in the TIA/EIA-568-B document, manufacturer’s
recommendations and/or best industry practices.
4.5.5
Each drop shall receive one 4 pair, Enhanced Category 5, FT 6 rated cable.
Each cable shall be tested and identified with the faceplate also identified. All
jacks shall be wired and connected back to respective patch panels.
4.5.6
Terminations shall involve as little outer jacket removal as possible and cable
pairs “untwisting” shall not exceed 13mm (0.5”).
4.5.7
Bend radius of the cable in the termination area shall not be less than 4 times
the outside diameter of the cable.
4.5.8
The cable jacket shall be maintained as close as possible to the termination
point.
4.5.9
Voice jacks, unless otherwise noted in drawings, shall be located in the
bottom position(s) of each faceplate. Voice jacks in horizontally oriented
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COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
faceplates shall occupy the right-most position(s).
considered the last voice jack in the sequence.
Modem jacks shall be
4.5.10 Data jacks shall occupy the top position(s) on the faceplate. Data jacks in
horizontally oriented faceplates shall occupy the left-most position(s).
4.6
4.6.1
4.7
4.7.1
4.8
ELECTROMAGNETIC INTERFERENCE SEPARATION
All data communication cables shall be separated from sources of
electromagnetic radiation in accordance with TIA Standard proposal SP-2072
and the following:
4.6.1.1
If both data and small power cables (2 KVA power circuits) are
installed in grounded, ferrous metal conduit throughout the run,
then no separation is required (i.e. EMT conduit).
4.6.1.2
FT-6 rated data cabling with no metallic raceway and power
conductors (2 KVA power circuits) in grounded raceway
requires 125 mm (5”) clearance.
4.6.1.3
For fluorescent fixtures, the required clearance is 300 mm (12”).
4.6.1.4
Clearance increased up to 610 mm (24”) for power circuits over
5 KVA.
4.6.1.5
For large motor, transformer, power panels, etc, the required
clearance is 1,020 mm (40”)
4.6.1.6
Cables must be routed to avoid direct contact with steam piping,
hot water piping or other heat sources to avoid thermal
degradation.
SYSTEM IDENTIFICATION
A complete identification n system shall be provided that clearly designates
the following:
4.7.1.1
The wire centre
4.7.1.2
The patch panel
4.7.1.3
The patch panel port
CABLE IDENTIFICATION
4.8.1
Each Wire Centre shall be identified with a letter code starting with the
primary wire centre as code ‘A’. The ports of each individual patch panel will
be designated numerically starting with ‘1’.
4.8.2
Horizontal UTP cables shall be permanently identified at the faceplate end in
the following manner.
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COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
4.9
WIRE CENTRE CODE - PATCH PANEL AND PORT NUMBERS
4.9.1
EXAMPLE: A cable terminating in Wire Centre A, port #12 shall be
designated as A-12.
4.9.2
All cable runs from LAN closets (Tie Lines) must be terminated on a separate
patch panel in the main LAN rack. This patch panel shall only have, “Tie
Line” drops terminations from various LAN closets in the building.
4.9.3
Cable runs between patch panels shall be identified at each end with the
designation of the opposite end as per above.
4.9.4
Identification Log:
4.9.4.1
4.9.5
All cable and workstations shall be recorded in a hard copy
“CABLE IDENTIFICATION LOG” which is to be handed over to
the School Board or Information Systems Manager after cable
testing and certification is complete. A duplicate copy is to be
retained on site in the completed building.
As-built:
4.9.5.1
Prepare “As Built” drawings to detail exact location of equipment
and indicating wiring runs, raceways, pull boxes, junction boxes,
terminal boxes, outlet location, cable numbers and equipment
rack profiles.
4.10 CABLE TESTING AND SYSTEM CERTIFICATION
4.10.1 The structured cabling system certification shall include 100% cable testing
and verification for 100 Mb/s solution.
4.10.2 The verification of each cable shall be performed by the contractor and shall
be documented on a cable test sheet that shall form part of a hard copy
documentation supplied at the end of the installation.
4.10.3 A detailed one-page cable test documentation sheet shall be provided for
each cable run. Testing shall include, but not be limited to the following:
4.10.3.1 Cable length
4.10.3.2 Attenuation
4.10.3.3 Near end crosstalk (NEXT)
4.10.3.4 Noise
4.10.3.5 Resistance
4.10.3.6 Wire Map
4.10.4 Cable test results must be sent to Dufferin-Peel ICT Network Services after
completion of the work.
Page 13 of 13
COMPUTER
CABLING SYSTEM
GUIDELINE
Elementary & Secondary Schools (Enhanced Category 5)
END OF COMPUTER CABLING SYSTEM GUIDELINE
LATEST REVISION IN BLUE FONT
DATE ISSUED
JULY 2000
REVISION 1
MAY 2002
REVISION 2
OCTOBER 2008
REVISION 3
NOV 2015
E:\DATA\WORD\TECHNICAL TEXT\DPCDSB COMPUTER CABLING SYSTEM.DOC
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