COMPUTER NETWORK DESIGN GUIDELINE FOR …facilities.mysdhc.org/PandC/standards/16760 Computer...

Computer Network Design Guide – New Systems 1/22

COMPUTER NETWORK DESIGN GUIDELINE FOR NEW SYSTEMS DOCUMENT NUMBER: 16760 APPLICATION: ELEMENTARY, MIDDLE AND HIGH SCHOOL DATE OF ISSUE: 12-17-12 - Miscellaneous revisions; 11-27-06 - Miscellaneous revisions; added rack labeling diagrams 01-14-05 - Added requirement for labeling in paragraph 3.01 H 4 11-19-04 - Revised paragraph 1.01 B for clarity 11-10-04 - Changed network equipment to owner provided/installed; miscellaneous revisions 05-29-03 - revised food service LAN sketch 05-08-03 - revised product numbers, and paragraph 1.08 11-26-02 - revised to add network equipment products list 10-16-02 - revised to include network equipment requirements 07-05-02 - revised to change network equipment to Contractor-provided 01-09-02 - added food service LAN sketch 08-13-01 - revised, changed network equipment to Contractor installed 10-25-99 - revised 7-25-97 - revised 6-15-95 - first issued NOTES: The attached specification should be utilized in the design of computer network systems. ATTACHMENTS: New Computer Networking Infrastructure Guidelines, dated 12-17-12 Copper Patch Panel and Face Plate Labeling Diagram, dated 11-27-06 Fiber Optic LIU Labeling Diagram, dated 11-27-06 Food Service LAN sketch, dated 05-29-03


NEW COMPUTER NETWORKING INFRASTRUCTURE GUIDELINES 12-17-12

TABLE OF CONTENTS

PART 1.00 – GENERAL 1.01 Scope of Guidelines 1.02 Codes and Standards 1.03 Design Requirements 1.04 Network Considerations 1.05 Design Submittals 1.06 Power Requirements 1.07 Transient Voltage Surge Protection 1.08 Uninterruptable Power Supply PART 2.00 – MATERIALS 2.01 Unshielded Twister Pair (UTP) Cable 2.02 Patch Panels and Interconnection Cabinets 2.03 Cable Connectors 2.04 Fiber Optic Cable PART 3.00 – Installation 3.01 Installation Practices PART 4.00 – System Commissioning 4.01 Testing of Cabling 4.02 Test Documentation 4.03 Certification of Test Results 4.04 Owner Testing Procedures 4.05 Training 4.06 Warranty PART 5.00 – Diagrams


PART 1.00 – GENERAL 1.01 SCOPE OF GUIDELINES

A. The intent of these guidelines is to provide specific requirements for the design and installation and operation of data networks for Hillsborough County Public Schools. It is very important for the proper management and maintenance of the School District’s data networks that all the District networks are carefully designed and that proper codes, standards and guidelines are followed in all facilities

B. Modifications to existing systems shall conform to the requirements of Standard Document

Number 16765 – Computer Network Design Guideline for Existing Systems. C. The data network infrastructure shall include, but not be limited to the following:

1. A central data distribution point in a designated communications equipment room, and remote satellite data distribution points

2. Equipment racks and/or cabinets where so directed 3. Voice and Data cabling, including fiber optic cable distribution and unshielded twisted

pair (UTP) copper cabling distribution 4. Necessary conduit/raceways and cable supports 5. Necessary power circuits (see Section 1.06) Surge suppression, proper planning

required for issues such as segmentation and grounding test

1.02 CODES AND STANDARDS

A. The following codes and standards shall apply to all computer network infrastructure projects: 1. National Electrical Code – current edition 2. EIA/TIA 568A and 569 – current edition, and TIA/EIA 568-A-5 3. State Requirements for Educational Facilities – current edition 4. IEEE Standards 802.3 and 802.5 5. EIA/TIA – TSB-36, TSB-40, and TSB 95 6. EIA/TIA 606 and 6077 7. EIA/TIA 67 and 72 8. UL labels: All items of equipment and individual components where applicable standards

have been established, shall be listed by the Underwriters’ Laboratories, Inc., and shall bear the UL label when delivered and installed on the job.

9. NFPA Compliance: Comply with National Fire Protection Code (NFPA) as applicable to installation and construction of equipment

10 NEMA Compliance: Comply with the standards of the National Electrical Manufacturers Association pertaining tom components of the equipment

11. ANSI Compliance: Provide equipment that complies with ANSI construction and rating standards.


1.03 DESIGN REQUIREMENTS

A. Construction Documents: All network infrastructure projects shall be installed in accordance with professionally prepared drawings and specifications.

B. CABLING – a. All Category 6 cabling and fiber must be plenum rated

b. All cables must be installed with a 4 ft service loop at each end

c. No cabling to be bound with plastic tie straps. Velcro only and loosely wrapped

C. FIBER –

a. All networks to have fiber backbones designed around a 10 gig star topology

b. All fiber to be a minimum of a 24 count 50/125 um OM3 multimode fiber and home run from each IXC to an MXC with no cross connects

c. Under no circumstances is any other cabling to be run in the same conduit as fiber unless the conduit is correctly sized and an inner duct per cable is used. If multiple fibers are run in the same conduit each fiber must have it’s own inner duct

d. All fiber to be terminated with SC type connectors in LIU’s

e. All fiber run’s outside must be in conduit or have an protective metal jacket and be outdoor rated.

f. No fiber runs to be more than 800 ft in length

D. UTP –

a. All unshielded twisted pair to be Category 6 and terminated to Category 6 certified patch panels and wall jacks.

b. All Category 6 unshielded twisted pair cables to be home run to the data system room for that building and be no longer than 275 ft

c. Under no circumstances is UTP cabling to be run outside unless in grounded conduit

d. All class rooms to have 1) 6-plex data outlet for student computers, 1) duplex data for teacher, 1) duplex mounted near ceiling for video projector as well as all necessary electrical outlets and race ways for cabling

e. All buildings will have multiple wireless access points. Each access point will require 1) duplex data connection terminated to a biscuit suspended above the ceiling with a 4 ft service loop. The ceiling grid is to be marked with blue painters tape to show where these drops are located. For reference on the number of access point drops needed, estimate 1) duplex per every two classrooms, per building, per floor.

f. Unshielded twisted pair cabling may be free wired above ceilings supported by “J” hooks no more than 4 foot apart

g. Each UTP cable to be labeled 2 inches back from termination with each end noting were the opposite end is terminated

E. RACKS –

a. All data racks to be a 2 post 19 X 84 with all necessary hardware and cross bar to support all cables and fibers and be 45 rack unit, with vertical wire management on both sides and must be capable of supporting a minimum of 750 pounds.


b. All 2 post racks cross bars must be anchored to a ¾ inch 4 X 8 plywood backboard painted with fire retardant gray paint with correct mount.

c. If a cabinet is to be used it must be 24 to 26” inches in depth and be mounted to a ¾ inch plywood back board cut to have a minimum of 1 inch wider and taller than cabinet and painted with gray fire retardant paint

d. All 2 post racks must maintain a minimum of 4ft from wall so techs can work behind a fully populated rack

e. 4 post server rack with two shelves

f. The following to be used for rack sizing and layout design. All MXC’s and IXC’s designs and layouts are to be made with the network electronics needed to activate all copper and fiber in mind. If a rack is more than 80% full a second and possible third rack must be installed to accommodate network electronics and future needs. Contact HCPS’s network department for current network electronics models being used. (See Diagram for typical MXC/IXC)

i. 24 or 48 port Non-PoE switch’s 17.32(w) x 11.81(d) x 1.72(h) in (44 x 30 x 4.36 cm) (1U height) not including power cord and fiber connections

ii. 24 or 48 port PoE switches -17.32(w) x 16.54(d) x 1.72(h) in (43.99 x 42.01 x 4.37 cm) (1U height) not including power cord and fiber connections

iii. Fiber switch chassis - 17.32(w) x 18.31(d) x 3.39(h) in (44.0 x 46.5 x 8.61 cm) (2U height) not including power cord and fiber connections

iv. Wire management both vertical and horizontal

v. Fiber LIU must be at the top of the rack then phone patch panels then data

vi. UPS’s up 4 RU in height

vii. Total number of cables

viii. Switch to patch panel requirements

F. CONDUIT –

a. No conduit or fire sleeve to exceed a 40 % fill capacity. All precaution must be taken to keep cross talk between data cables and other communication cables to a minimum

b. All conduit used for fiber runs must maintain a radius bend 10 times the inside diameter of the conduit being used

c. All conduit used for UTP cabling must maintain a bend radius 6 times the inside diameter of conduit being used and not exceed a 40 percent fill capacity

G. ENGINEER – The Professional Engineer shall have experience with the network infrastructure design in Florida schools and shall be designated the Engineer of Record. The Engineer shall produce complete construction documents for the installation of the computer network, including drawings and specifications. The documents shall be adequately detailed and prepared in accordance with the requirements outlined herein and shall conform to applicable codes and standards.


1.04 NETWORK CONSIDERATIONS

A. Main Cross Connect (MXC): The school campus MXC shall be located in a designated systems room near the Media Center, according to the Educational Specification. Provide a dedicated space for the computer networking equipment (servers, CD Rom towers, etc.).The location must meet the proper environmental controls, lighting requirements, clearance requirements and power availability. The approved rack will be manufactured for data equipment, not audio, 19” w x 84” h, 45 rack unit, standard rack with vertical wire management on both sides. Rack must be capable of accepting ladder rack for support and be capable of a minimum of 750 pounds. The location must be within 50’ of an outside wall.

B. Intermediate Cross Connect (IXC): Each individual building on the school campus shall

have an IXC, located within a designated systems room. The location must meet the proper environmental controls, lighting requirements, clearance requirements and power availability. The IXC shall be the connection point for the building’s network devices to the main switch near the Media Center, via fiber. The IXC shall be as centrally located as possible within the individual building, with a maximum 275 feet of cabling from the hub patch panel to the farthest communications outlet. The IXC rack shall be a 2 post 19 X 84 with all necessary hardware and cross bar to support all cables and fibers unless another design is pre-approved (in writing) by the Owner. Provide a 45-rack unit, with vertical wire management on both sides, capable of supporting a minimum of 750 pounds. For renovation projects, if physical space is limited within an existing systems room then a wall-mounted cabinet with a minimum depth of 26” may be used (not acceptable at newly constructed systems rooms). Where a designated systems room is not provided, a wall mounted lockable cabinet must be provided, located as directed. Under no circumstances will racks or cabinets be located in student or staff occupied areas or public areas.

C. Collapsed Fiber Backbone: The collapsed backbone will have multiple switched segments

operating at 10 gig. Physically, the collapsed backbone will consist of riser rated indoor / outdoor tight buffered 24-count fiber (OCC BX) or exact equivalent running from the MXC to each permanent building to support the horizontal copper distribution. The design must accommodate a future 6-count fiber to be run (by others) from the nearest IXC to the closest portable classroom building to the permanent buildings to establish a second tier IXC in this first portable. From this first portable building, a (6) count fiber will then be run to each outlying portable. This second fiber tier will utilize power poles for a system of aerial fiber distribution.

D. Network Electronics: All active components of the network will be supplied and installed by

the HCPS network department. Information on current network electronic models can be requested from the HCPS network department for rack design requirements.


1.05 DESIGN SUBMITTALS

A. As a minimum, the construction documents shall provide the following information:

1. Floor Plans: a. The location of the MXC, all IXCs and all data outlet locations, including the type and

labeling of the outlet. b. The location of the associated electrical outlet, (immediately adjacent). The

documents will also identify the nearest panelboard to each IXC/MXC and insure that the panelboard can supply at least 4-20A 120 volt circuit. Panelboard locations shall be indicated on the drawings.

c. The routing and distances of all data and fiber optic cables, and associated conduit sizes.

d. All fire rated wall or structural penetrations and sleeve requirements. e. Routing of all exposed conduit (exposed conduit is to be provided only where

allowed at existing facilities.)

2. Riser Diagrams: a. MXC and IXCs showing, in elevation, the location of the rack and spaces required for

all fiber trays, network electronics, copper patch panels and wire minders. Refer to figures 1 and 2.

b. All cable routing details at the racks. c. The number, type and conduit sizes of all fiber runs interconnecting the MXC and the

IXCs. d. The rack room number, building number and size. e. The total number and type of data drops served by the MXC or IXC, such as

Wireless –WL, Computer – C, Clock – CLK, Video Projector – VP, Air Conditioning – A/C, Camera – CAM.

3. Details:

a. The MXC and IXC enlarged plans with all dimensioned clearances, adjacent shelving/cabinets and miscellaneous equipment necessary to judge the suitability of the arrangement and possibilities for future equipment and rack expansion. MXC and IXC details shall show conduit arrangements.

b. Conduit details including but not limited to surface mounted conduit data drop detail, cabling support details, fire rated wall/structural penetration details and exterior exposed conduit details (only where allowed).

c. A legend of clearly drawn symbols with written definitions shall be provided. d. Provide the total number of drops for each rack extending to rooms. e. Provide and show a surge suppressant power strip at each rack with a minimum of 6

outlets and a minimum of a 15-amp circuit breaker mounted in the rack.


1.06 POWER REQUIREMENTS

A. The power circuits for the campus network power requirement shall be obtained from a panelboard that is dedicated to computer related circuits. Each of these panels shall be provided with a surge suppressor and the panel shall be labeled “computer circuits only”. Network power circuits shall not be circuited to panels containing HVAC equipment, kitchen equipment, shop equipment, or any other equipment with a large motor load or load with a high harmonic content.

B. Note: The use of existing panels is generally not recommended, but may be permitted only

after careful review by the Owner. If permitted, all existing panels used for computer circuits shall have a surge suppressor added.

C. All racks must be provided with a minimum of one (1) dedicated 20-amp, 120-volt circuit,

quad receptacle. (Actual number of circuits to be determined by network electronic needs.) E. Power receptacles shall be located adjacent to communications outlets in all rooms. These

outlets shall be circuited to a 20-amp, 120-volt power circuit from the computer panelboard. These circuits shall not have more than five (5) workstation receptacles per circuit.

F. Each 20A circuit shall have a dedicated neutral. Panel Board feeders with oversized

neutrals and a 200% neutral bus in the computer panel should be considered where there are high concentrations of computer workstations.

1.07 TRANSIENT VOLTAGE SURGE SUPPRESSION

A. A transient voltage surge suppressor shall be provided at the service entrance and at all computer system panel boards.

B. Suppressors shall be listed in accordance with UL 1449, Standard for Safety, Transient

Voltage Surge Suppressors. C. For 3 phase, 4W plus ground configurations, the TVSS shall provide suppression elements

between L-N, L-G and N-G.

D. Internal Protection:

1. TVSS shall be marked with a short circuit current rating and shall not be installed at a point on the system where the available fault current is in excess of that rating. (Note that this is a School Board requirement, regardless of whether or not it is a current code requirement).

2. TVSS shall include Thermal Cutout Links on L-N, L-G and N-G modes.


E. Visible indication of proper suppressor connection and operation shall be provided. F. Suppressors shall be designed for close nipple installation. The mounting position of the

suppressor shall permit a straight and short lead length connection between the suppressor and the point of connection to the panelboard. Conductors shall be gently twisted together to reduce inductive effects.

G. A breaker or safety switch must be provided as an appropriate disconnect. (Note that the

absolute best way to implement TVSS on a branch panel is with hard bussed integral installation. The TVSS is connected directly to the buss, which eliminates lead lengths. These come only from OEM companies with the entire fault current and coordination details are already worked out.)

H. Suppressors for the service entrance shall meet or exceed the following criteria:

1. Maximum single impulse current rating: 150,000 ampere per phase (8/20 sec. waveform).

2. Pulse life rating: Category C (8/20 sec. waveform): 1,000 occurrences with no clamping drift.

3. UL 1449 clamping voltage shall not exceed the following:

VOLTAGE L-N & L-G N-G 120/208 400 400 277/480 800 800

I. Suppressors for distribution and branch circuit panelboards shall meet or exceed the

following criteria:

1. Maximum single impulse current rating: 75,000 amperes per phase (8/20 sec. waveform).

2. Pulse life rating: Category C (8/20 sec. waveform): 1,000 occurrences with no clamping drift.

3. UL 1449 clamping voltage must not exceed the following:

VOLTAGE L-N & L-G N-G 120/208 400 400 277/480 800 800


I. The suppressor shall have a warranty guarantee for a period of one year, incorporating a

one time free replacement if the suppressor is destroyed by lightning within the warranty period.

1.08 UNINTERRUPTIBLE POWER SUPPLY

An uninterruptible power supply (UPS) shall be provided at the MXC and IXCs. The UPS at the MXC shall be rated at a minimum of 1500 VA and from 650 to 1400 VA at the IXC depending on power requirements of total electronics in the rack. All UPS shall have internal surge suppression for the incoming power circuit. The UPS shall have LED’s to indicate the UPS status and shall have hot swap batteries, intelligent battery management, overload indicator, rack mount, replacement battery indicator, software, site wiring fault indicator, automatic voltage regulation (AVR), network interface card for remote communications, and user replaceable batteries. The 1500 VA UPS shall be equipped with (6 or more) NEMA 5-15R and the 650 VA shall be equipped with (4) NEMA 5-15R receptacles. No UPS over 650 VA is to be mounted in any swing gate type rack unless extra bracing is added to the rack to support the weight of the UPS and electronics when the gate is opened.


PART 2.00 – MATERIALS 2.01 UNSHIELDED TWISTED PAIR (UTP) CABLE

A. Certified UL Level 6, eight wire (4 twisted pair) 22 AWG copper cable. B. Cable shall be plenum rated, TIA/EIA-568-B.2-1 compliant and have a minimum bandwidth

rating of 200 Mhz C. UTP cable shall have surface markings “Type CMP” and “UL VERIFIED LEVEL 6”;

“CLASSIFIED LEVEL 6”; “VERIFIED CATEGORY 6” or equivalent markings as approved by the owner.

D. UTP cable shall meet all requirements of ANSI/ICEA Publication S-80-576 that are applicable for plenum inside wiring cable. In addition, the cable shall meet all requirements of the EIA/TIA 568A, GTSB-36, and TSB-40.

2.02 PATCH PANELS AND INTERCONNECTION CABINETS

A. Racks / Cabinets a. An approved 2 post data rack 19” w x 84” h, 45 rack unit, standard 2 post rack with

hinged vertical wire management for ease of operation on both sides. b. 2 post rack must be capable of supporting up to 750 pounds and a ladder rack for

support of all copper and fiber home runs terminated at the rack c. The location must be within 50’ of an outside wall. d. An approved 4 post rack with a minimum of 2 (two) shelves for servers. e. See diagram 5 page 23 for layout

B. UTP Patch Panels

a. Shall be Category 6 Certified rack-mounted b. Shall be 110 IDC-type connectors to keyed, RJ-45 EIA 568A type jacks with no

exposed pc boards. Jacks shall be manufactured with printed circuit board (PCB) technology or lead frame technology.

c. Shall be supplied with a cable management, strain relief bar on the back of the panel d. Shall be provided with a minimum 2-space, enclosed wire-minder cable management

as indicated in Figures 1 and 2. e. Shall be provided with individual port and patch panel labeling identification areas

and shall be labeled with an encoded identification method, as indicated in Figure 3.

C. Fiber Optic Cable Interconnect Cabinets a. Shall be minimum 24-port, loaded with SC connectors, splice tray service loop

organizer and rack mounting supports. b. Shall have a protective cover for front enclosure access. c. Shall be provided with individual port and patch panel labeling identification areas

and shall be labeled with an encoded identification method. d. UTP patch panels and fiber interconnect cabinets shall be arranged with careful

consideration of future needs


e. Shall include some spare ports and mounting space for future panels for potential expansion.

2.03 CABLE CONNECTORS

A. UTP cable connector jacks shall be Category 6 certified, RJ-45 style, keyed and configured for EIA 568A type connection.

B. SC type connectors shall be utilized for fiber optic connections. ST connectors will be

permitted on existing networks only. 2.04 FIBER OPTIC CABLE

Fiber optic cable from the main hub to each intermediate hub shall be a minimum of 24 fibers, 50/125, tight buffered, indoor/outdoor riser rated. All fiber shall be protected either by conduit or armor jacketed

2.05 TELEPHONE INTER-BUILIDNG AND STATION CABLING

A. Inter-building voice backbone cabling shall be terminated on M1-50 blocks on 89-B standoff brackets. All cabling between buildings shall terminate on Portagas type surge arrestor or equivalent. Arrestor shall have a maximum single impulse transient energy rating of 124 joules (8x20 microsecond waveform), minimum. Arrestor shall have a maximum single impulse rating of 10,000 amps (8x20 microsecond waveform), minimum.

B. The horizontal Category 5 Extended Overhead cabling will also be used for voice station

cabling (generic infrastructure). Voice and data jacks will be housed in the same outlet box with no distinction physical or labeling made between data and voice distribution.


PART 3.00 - INSTALLATION 3.01 INSTALLATION PRACTICES

A. Routing of Fiber and Data Cabling: In no case will fiber optic cables be permitted to run exposed, and in no case will Category 6 cabling be permitted to run exposed or to penetrate the exterior envelope of a building. Lashing cables to existing conduits/appurtenances is strictly prohibited.

B. Network system design and installation practices must account for proper fire stopping of

any penetrations of fire rated assemblies. C. Fire stopping of fire rated assemblies must meet the requirements of UL, NFPA, and all

applicable building codes. D. Raceway, cable support and routing requirements:

1. Conduit for fiber optical cable: Fiber optic cabling shall be installed in a raceway, up to the edge of the backboard of the MXC or IXC where it may be exposed if secure to the backboard. Fiber can be run outside of conduit if it has an armor-type jacket and is plenum rated.

a. Conduits for fiber optic cable shall be a minimum 2 inches. b. Conduit installed indoors shall be EMT with compression fittings.

2. The raceway is to be routed in concealed, accessible above-ground locations. Where

this is determined by the Owner to be inappropriate, raceways may be installed underground and may be direct burial rated Schedule 40 PVC or galvanized rigid steel. A metallic warning tape must be installed 12” above all PVC. All trenching will be dug (by hand at existing facilities) to a depth of 36”.

3. Raceways installed in exposed areas subject to potential damage or harsh conditions

shall be galvanized rigid steel. All raceways shall be run straight and level. 4. Exposed raceways are not allowable except where conditions do not allow concealed

accessible routing, and only where prior approved by the Owner. All surface-mounted conduit shall be installed with 2-hole straps.

E. Conduit for UTP

1. UTP cabling installed inside buildings shall be installed in a raceway from the

communications outlet up to the ceiling space (above the dropped ceiling). Unless


otherwise approved, this raceway shall be a concealed conduit in the wall, minimum ¾”. Where allowed in existing buildings, a surface-mounted “Wiremold” type raceway shall be utilized. Surface mounted raceway to be mechanically fastened to the wall. Adhesive backing alone will not be permitted.

2. Where a dropped ceiling does not exist, the UTP shall be run in EMT, sized as required. 3. Conduit sleeves, minimum 2 inches, shall be provided at all penetrations of fire rated

assemblies. All penetrations shall be fire stopped in accordance with an applicable UL Listed firewall penetration detail using UL Listed fire stopping materials and methods.

F. UTP Cabling

1. All communications outlets within a building shall be connected to their respective switch via Category 6 compliant Unshielded Twisted Pair copper cabling. UTP cabling lengths shall not exceed 275 feet from the patch panel to the communications outlet.

2. UTP Cable Routing: UTP should be installed over accessible corridor ceilings or along

lines that are parallel to the contours of the building. Deviations from straight should be made at right angles. Wall penetrations or floor penetrations shall be made via pre-constructed distribution systems designed to support and protect the cable.

3. UTP cabling may be “free-wired” where it is routed concealed above an accessible

ceiling. Free run cables shall be bundled and loosely tie wrapped (24) inches on center (maximum). Use plenum rated tie wraps in air plenums.

4. Cabling shall be supported to the building structure at a minimum of 4-foot intervals with

J-Hooks or other approved fittings/means. Cabling shall not be supported from the ceiling, ductwork, conduits, piping, or any other non-structural building member. 2” sleeves shall be provided where the cabling exits the ceiling up to the edge of the MXC or IXC backboard.

5. All UTP cabling must maintain a minimum service loop of 4 feet at both ends for

serviceability. At workstation end service loop must be in ceiling at conduit stub up. At data rack the service loop for all UTP cables will be attached to backboard or ladder of freestanding racks with appropriate support.

6. Refer to the Educational Specification for number and type of drops to be provided in

each space. 7. Category 6 patch cables to activate all drops are to be supplied by the contractor. Patch

cables are to be delivered to the Owner’s representative and a signed receipt obtained by the contractor for submittal with the close-out documents. Receipt must note quantities.


a. All cables must be yellow in color for data and blue in color for telephone. b. Lengths must be divided evenly between 3 and 6 ft for patch panels. c. The same count must be supplied for workstation cables in 10’ lengths.

8. Owner will supply fiber jumpers as type of electronics provided may vary, but all bulk heads (LIUs) are to remain as specified elsewhere.

G. Grounding

All equipment racks, cable trays, surge suppressors and cabinets shall be bonded to the building grounding electrical system, building structural steel and shall have a supplemental driven ground rod. In addition a bare #6 AWG copper wire shall be carried and routed with the fiber backbone outside of the fiber conduit throughout the campus providing a loss resistance grounding system.

H. Labeling and Identification

1. Each cable shall be labeled with a unique identifier. All network system components shall be labeled, including rooms, racks, cabinets, patch panels, individual ports in each patch panel, communications outlets, etc. The system identification administration shall meet the requirements of TIA/EIA-606.

2. All communications outlets shall be labeled using an encoded labeling system with the

room number and port number. Refer to Figure 3. 3. Each patch panel in the MXC and IXCs shall be labeled sequentially left-to-right, top-to-

bottom, with the room number and port letter, such that the ports can be located easily on the panel.

4. All cabling installed as part of a renovation, remodeling or additions to existing campus is

to be labeled with the name of the installing contractor at each end and every 10 feet in the middle.

I. Fiber Optic Cabling

1. All fiber runs to an IXC must be home runs from the MXC. NO CROSS CONNECTIONS WILL BE ALLOWED.

2. All fibers in each fiber optic cable shall be identified at each end on the interconnect

cabinet. Fibers shall be identified with the building number and corresponding 1-24 fiber number. Refer to Figure 4. It shall be everywhere in minimum of two inch (2”) conduit except where field conditions permit a run into a building of less than fifty feet (50’) and fiber is protected. All fiber optic runs must maintain a minimum service loop of four feet


(4’) at both ends for serviceability. The service loop for all fiber will be attached to backboard or ladder support of freestanding racks with appropriate support.

3. Fiber must be in its own conduit. No other cables are permitted to be run in the same

conduit as the fiber.


PART 4.00 – SYSTEM COMMISSIONING 4.01 Testing of Cabling

A. Horizontal UTP cabling shall be tested at 250 MHz Level 6 operation. Test equipment shall

be certified for Level 6 Overhead testing at 250 MHz. This equipment shall automatically indicate failure of any cable to comply with 250 MHz requirements. 1. UTP shall be tested from patch panel to communications jack. Every port shall be

tested. 2. UTP test limits shall be as published in EIA/TIA 568 and TSB-67. 3. Testing must be completed after all cable after terminations have been made and prior

to installation of any system electronics. 4. Test shall be run using the correct velocity of propagation for the specific cable installed.

B. Fiber Optic Cable Testing 1. Each fiber in all fiber optic cables shall be tested for end-to-end attenuation. 2. Attenuation shall not exceed the 2.5 Db end-to-end attenuation level. 3. Test all cable after terminations have been made and prior to installation of any system

electronics. 4. Test shall be run using the correct velocity of propagation for the specific cable installed.

4.02 TEST DOCUMENTATION A. Provide electronic copy of all test results for each port and each fiber. Report shall be PDF

type document on CD-ROM. B. UTP data test results shall include:

1. Port identification number 2. Cable type 3. Clear indication of “pass” or “fail” with limits 4. Cable Number


5. Test Equipment Model and Serial Numbers 6. Date 7. Reference Setup (include UL verified VP setting) 8. Operator (crew members) 9. Cable Capacitance 10. Loop resistance 11. Near-End-Crosstalk (PSNEXT), Far-End Crosstalk (PSELNEXT), Return Loss at 20

MHz and at 100 MHz 12. Attenuation 13. Line map 14. Cable Length

C. Fiber results shall include

1. Cable type and identification number 2. Manufacturer’s published attenuation level. In no case shall the attenuation exceed 2.5

dB end-to-end. 3. Tested attenuation result and clear indication of “pass” or “fail” with limits.

4.03 CERTIFICATION OF TEST RESULTS

Contractors RCDD shall provide written certification of the network’s Level V compliance.

4.04 OWNER’S TESTING PROCEDURES A. Upon completion of the aforementioned tests, the Owner may perform testing to ascertain

the validity of the Contractor’s supplied test data. The test will be performed with the Owner’s test equipment. The tests will be performed on a sample basis (10% of installed Cos) on various portions of the network as determined by the Owner. The Contractor and design professional shall witness the testing.


B. If, in the opinion of the Owner and Design Professional, the failure rate is excessive, the Contractor will be required to re-test the entire system independently at no cost to the Owner.

4.05 TRAINING

Provide a minimum of 2 hours training on the location of the equipment, the use of the patch cords and methods of patching, nomenclature and labeling system, typical problems and their solutions and other general guidelines and troubleshooting to School personnel. Maintain a record of the date and duration of the meeting and attendee sign-in sheet for submittal to the Owner with the close-out documents.

4.06 WARRANTY The cabling system shall meet the performance requirements of the ANSI/TIA/EIA-568A standard (Annex E) and TIA/EIA Telecommunications Systems Bulletin 67. The warranty on the material, services, and operation of the cabling system is to be for a period of 1-year from the date of substantial completion of the project.


Copper Patch Panel and Face Plate Labeling Diagram 12/17/12

101

PP 1

101

1 2

101 101

3 4

102 102

5 6

102 102

7 8

201 201 201 201 202 202 202 202

17 18 19 20 21 22 23 24

203

PP 2

203

1 2

203 203

3 4

204 204

5 6

204 204

7 8

301 301 301 301 302 302 302 302

17 18 19 20 21 22 23 24

501

PP 3

501

1 2

501 501

3 4

502 502

5 6

502 502

7 8

601 601 601 601 602 602 602 602

17 18 19 20 21 22 23 24

603 603

25 26

603 603

27 28

604 604

29 30

604 604

31 32

605 605 605 605 605 605 606 606

41 42 43 44 45 46 47 48

21

IXC 2Room 106

22

23 24

Room 106 IXC2

PP 1

IXC Room Number

Jack number coorespondingTo Factory Numbers on

Patch panelPatch Panel ID

41 42

43 44

Room 106 IXC2

PP 3

45 46

Network Guidelines Figure 3

1) Patch panels to designate what room number the cablesTerminae at and will be sequncial room number order

2) Face plates to denote what rack room number the rack is in andBe labeled with associated patch panel and port number of patchPanel cable is terminated at.


Fiber Optic LIU Labeling Diagram 12-17-12

All fibers in each fiber optic cable shall be identified at each end on the interconnect cabinet. Fibers shall be identified with the building number and corresponding 1-12 fiber number.


MCX / ICX Typical Fiber and Copper Layout 12-17-12

Switch

LIU - SC Type Connectors

48 port Cat 6Data Patch Pane

Switch

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

Switch

Switch

Switch

Switch

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

1 RU Wire Manager

24 port Cat 5Phone Patch Pane

UPS

Vertical Wire ManagmenWith swing open doo

4 ft Ladde

PowerstripPowerstrip

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