MetroLinks Distribution Cabinet (MDC-CB) User Manual 131220 A0
Contents 1. Description MDC-CB Without Rear Compartment Splicing................................................................................................ 1-3 MDC-CB With Rear Compartment In-Cabinet Splicing .................................................................................. 1-4 Front Compartment Cross Connections ......................................................................................................... 1-5 Features ........................................................
Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Copyright © 2006 Telect, Inc.
1. Description Telect’s MDC-CB is an indoor/outdoor fiber telecommunication distribution cabinet. The cabinet houses Telect’s bulkhead-style Patch Modules to handle optical signal distribution between a CO and the network edge. A single MDC-CB cabinet with up to six Telect Patch Modules can provide distribution service to 432 homes, offices and/or nodes. Cabinet The weather-tight, heavy-gauge, light-weight aluminum cabinet is almond with two lockable doors — both doors have wind stays.
Distribution Adapters Model MDC-SPLC Splice Box Feeders to Front Compartment Feeder & Distribution Cable Entrances Lances for Anchoring Cable, Subunits, and Loose Tubing MDC-CB With In-Cabinet Splice Box (Rear Corner View) Parking for Unassigned Distribution Feeders from Rear Compartment to Splitters Adapters for Assigned Distribution Front Corner View With Door Open Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.
. MDC-CB WITHOUT REAR COMPARTMENT SPLICING Cabling without in-cabinet splicing involves an aerial or below-ground splice box for splicing the distribution and feeder cables to connectorized cabinet cabling. • At the cabinet, the OSP distribution cable is clamped at the floor of the rear compartment and then routed along the cabinet’s compartment partition. The connectorized 250 µm strands break out here into subunits/buffers and then connected to one of the six possible, 72-channel Patch Modules.
Each of the six possible patch modules (Model MDC-P72N) features 72 SC/APC cross-connect adapters for a total of 432 possible subscriber cross connections. Model MDC-P72N-F100D includes the Model MDC-P72N connected to 100 ft (~30.5 m) of Dri-Flex™ OSP cable containing 250 µm fiber furcated to 900 µm loose tubing with an SC/APC connector. The following illustration shows a deployed cabinet along with a partially cabled rear compartment.
Each cassette normally accommodates 24 splices. If all feeder and distribution fiber requires splicing, a total of 18 cassettes are needed to accommodate all 432 subscribers. For the distribution splices, each pod would hold 6 splice cassettes plus one additional cassette on one of the pods for up to 16 feeder splices. Feeder and distribution strands are spliced to connectorized fiber protected by 3-mm, radius control loose tubing.
Up to 18, 1x4, 1x8, 1x16, or 1x32 Telect Splitter Modules can be installed in the splitter bulkhead at the bottom of the front compartment. Each splitter module consists of the splitter, one blue “input” jumper, and either 4, 8, 16, or 32 yellow “output” jumpers. All are 2 mm jumpers, 2.1 m in length.
• Fiber Signals: 16 feeder signals, max.; 432 distribution signals, max. • Adapters: SC/APC at cabinet end of fibers • Cross-Connect Bulkhead Positions: 6, max. Each bulkhead accommodates 72 X-connects (6 x 72 = 432) • Splitter Module Positions: 18, max. Each accommodates a 1x4, 1x8, 1x16 or 1x32 Telect Splitter Modules with front access installation and cabling. “Inputs” and “outputs” are 2-mm jumpers, 2.1 m long with SC/APC connectors • Parking Positions: 72, max.
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2. Cabinet Installation INSTALLATION CONSIDERATIONS ! WARNING WARNING! Fiber cables transmit invisible infrared light. To avoid eye damage or blindness, never look directly into fibers or connectors. WARNUNG! Faserkabel übertragen unsichtbares Infrarotlicht. Um eine Schädigung der Augen oder Blindheit zu vermeiden, schauen Sie nicht direkt in die Fasern oder Stecker. ADVERTENCIA ! Los cables de fibra transmiten luz láser o infrarroja invisible.
22.09 [561.0] NOTE: Dimensions are in in. (mm) 19.90 [505.5] 17.72 [450.0] 15.53 [394.5] 11.89 [302.0] 9.70 [246.5] 7.52 [191.0] REAR 1.28 [32.5] 5.33 [135.5] 1.75 [44.5] 2.79 [70.8] Ø1.20 [Ø30.5] Max. Cable Dia. 16.85 [428.0] 14.29 [363.0] Footprint Cable Clamp Positions (16) 10.79 [274.0] 5.41 [137.5] Ø0.50 [Ø12.7] Anchor Holes 1.28 [32.4] 1.75 [44.5] FRONT 1.99 [50.6] 23.52 [597.4] 1.99 [50.6] 27.50 [698.5] Footprint Ø4.00 [Ø101.6] Stub-Up Conduit 20.99 [533.2] 18.81 [477.7] 16.62 [422.
Tools & Equipment — No special tools required for installation. INSPECTION Telect is not liable for shipping damage. Keep the container until you have checked equipment operation. If you experience any kind of problem, call Telect’s Customer Service Department. Use the original, undamaged container if you are instructed to return a panel to Telect. If a shipping container is damaged, keep it for the carrier’s inspection.
b. The front versus rear of the base are dimensionally alike and interchangeable. The top versus bottom are not. c. Place square washer from the anchor kit over the studs. d. If using a regular L-shaped concrete anchor, use a suitable nut and tighten all four corner anchors evenly to 38 ft-lb for ½in. low-carbon steel studs and fasteners or 83 ft-lb for 3/8-in. hardware. If using a Telect anchor kit, tighten breakaway torque nut until it shears off plastic-encased holding nut.
Base Adapter Vault Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 2-5 Copyright © 2002 Telect, Inc.
Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 2-6 Copyright © 2002 Telect, Inc.
3. Cabling Without In-Cabinet Splicing ! WARNING WARNING! Fiber cables transmit invisible infrared light. To avoid eye damage or blindness, never look directly into fibers or connectors. WARNUNG! Faserkabel übertragen unsichtbares Infrarotlicht. Um eine Schädigung der Augen oder Blindheit zu vermeiden, schauen Sie nicht direkt in die Fasern oder Stecker. ADVERTENCIA ! Los cables de fibra transmiten luz láser o infrarroja invisible.
Distribution Tie-Down Wall Feeder Tie-Down Wall Cable Entrance Dock Chock Bar Cover Plates Preferred Locations of Feeder Cable Clamps Tie-Down Lance on Feeder Tie-Down Wall Top View of Cabinet's Rear Floor 4. Use the next illustration to calculate the length of cable(s) required between the splice box (vault or aerial enclosure) and the feeder adapters near the top of the cabinet’s rear compartment. Use heat-shrink tubing to secure the loose tubing at the end of the cable(s).
5. Feed opposite end of feeder cable(s) through stub-up conduit to splice vault or aerial enclosure. Before splicing, use cable ties “temporarily“ to hold the cable end(s) in the cabinet to convenient lance(s) along the feeder tie-down wall. Tie it down temporarily so that the SC/APC connectors will reach the feeder adapters at the top of the rear compartment. 6. Wait until all feeder cable is connected and secured in the cabinet before external splicing. 7.
Feeder Cable (Installed) PATCH MODULE & DISTRIBUTION CABLE INSTALLATION Patch Modules come with a 72-strand distribution cable installed at the factory, as shown in the following illustration. The cable is a dry, unarmored cable containing 6 subunits each with 12, 250 µm fibers. Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 3-4 Copyright © 2002 Telect, Inc.
Transparent Tubes, Each Containing a 250 µm Fiber With an SC/APC Connector Subunits (6, with 12, 250 µm fibers ea) Patch Module Heat-Shrink Tube Cable Clamp Front Rear 72-Strand OSP Cable Fan-Out Blocks (6, with transition to 12, 900 µm transparent tubes) Patch Module With Distribution Cable Telect offers a standard length of cable to fit most applications: 100 ft (30.48 m), measured from a fan-out block attached to the Patch Module to the stub end. (Custom lengths available on request.
The cable clamp, shown on Page 3-1, is the same type used to secure distribution cable. One cable clamps is provided. An additional cable clamp may be required to fill out the two-position entrance slot. (See “Standard Accessories” on Page 7-1.) The fan-out block allows transition from the 250 µm fiber in subunits to individual connectorized fiber strands in 900 µm transparent tubes. Telect terminates the connector at adapter ports at the rear of the patch module.
Anchor Plate Swing Out Hinged Bulkhead and Pass Through Rack into Front Compartment Use Three Acorn Nuts Provided to Secure Patch Module to Interior Wall of Cabinet Temporarily Secure Breakout End to Tie-Down Wall Move Cable Clamp to Bottom of Cabinet Installing a Patch Module Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 3-7 Copyright © 2002 Telect, Inc.
10. At front of cabinet, secure patch module swing-out door. Thumbscrew for securing Patch Module Door 11. Repeat Steps 4 through 10 for the next Patch Module and distribution cable. 12. Continue so until all scheduled Patch Modules are installed. 13. Re-insert cable entrance dock: tilt it up as shown in the following illustration, and then slip the feeder and distribution cable clamps into the slots. Use extra clamps to fill out the slots containing only one cable. 14.
4. Cabling With In-Cabinet Splicing ! WARNING WARNING! Fiber cables transmit invisible infrared light. To avoid eye damage or blindness, never look directly into fibers or connectors. WARNUNG! Faserkabel übertragen unsichtbares Infrarotlicht. Um eine Schädigung der Augen oder Blindheit zu vermeiden, schauen Sie nicht direkt in die Fasern oder Stecker. ADVERTENCIA ! Los cables de fibra transmiten luz láser o infrarroja invisible.
Cassette Holders Splice Box Installing Splice Box Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 4-2 Copyright © 2002 Telect, Inc.
Acorn Nuts (3) Secure Patch Module to Rear Wall of Partition Patch Module Bulkhead Swings on Hinge to Allow Access to Rear Connectors and Adapters From Front Compartment Installing Model MDC-P72N Patch Module FEEDER CABLE INSTALLATION The cabinet accommodates up to 16 strands of OSP feeder cable. Telect supplies two cable clamps that accommodate cables between 3/8 in. (9.6 mm) and 11/5 in. (30.5 mm) in diameter.
2. Remove cable entrance dock at bottom of cabinet by removing six sets of nuts and washers shown in the following illustrations. The cable entrance dock contains eight slots with slide-out cover plates. Each slots can accommodate two cable clamps for either feeder or distribution cable. 3. Slide out cover plate over feeder stub up. 4. Fish feeder cable into cabinet and then remove at least 15 ft (~5 m) of sheathing from the cabinet end.
5. Carefully remove buffer/subunit tubes from the 15-foot unsheathed end and place fiber into 3-m radius-control (bend limiting) loose tubing. Use heat-shrink tubing to hold loose tubing to sheathed end of feeder cable. 6. Measure diameter of cables and remove and discard that much from the interior of the cable clamp’s leaf bundle equal to the diameter of the cables. The remaining leaves will be used between the clamp halves and the cable. 7.
NOTE How many cassettes to place on each holder depends on how many feeder and distribution fiber pairs require splicing. If you intend to accommodate 16 (max.) signals from the CO and up to 432 (max.) from the distribution, you need a total of 19 cassettes: one for the feeders and 18 for the distribution. It’s wisest to arrange cassettes more or less evenly among the holders. It’s also wisest to add all intended cassettes to the stack before running loose tubing and splicing any of the cassettes.
Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 4-7 Copyright © 2002 Telect, Inc.
All Fiber From Cable Entrance to the Left End of Each Cassette Must be in 3-mm Radius- Control Loose Tubing Feeder Adapters d En ft Le Each Fiber From Right End of Each Cassette to the Feeder Adapters Must Be in 3-mm, Radius-Control Loose Tubing Fiber From Right End of Each Cassette to Patch Panels Must Be in 3-mm, Radius-Control Loose Tubing o.: . Pos 1 N R y T ra 2 4 6 es 5 D 7 n tio na ig 8 10 11 12 13 14 ht ig 3 9 16 d En 15 17 18 19 20 21 22 23 24 Tra y 1 o.: N .
To/From Cable Entrance 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 7 8 9 10 11 12 13 14 15 16 17 18 13 14 15 16 17 18 19 20 21 22 23 24 19 20 21 22 23 24 Fiber from cable entrance to Splice Positions 1 through 12 will be at the right end of the splice. Fiber from cable entrance to Splice Positions 13 through 24 will be at the left end of the splice.
To use the fan-out block, proceed as follows: a. The furcation block has about 1.5 m (~5 ft) of transparent tubing for 900 µm fibers. Cut the transparent tubing back to 11½ in.(~300 mm). b. Slip the fibers through the furcation block and transparent tubes and move the ends of the transparent tubes up to the SC/APC connectors. c. Next, slip on the heat-shrink tube supplied with the fan-out kit d. Place the furcation block onto the bottom cover. e. Snap on the top cover. f.
ROUTING FEEDER & DISTRIBUTION LOOSE TUBING When completed and before moving to the next cassette pod, 1. Install completed cassette pod on the rear door. 2. Route all loose tubing as planned and use cable ties liberally to secure tubing to lances on door and in cabinet. 3.
Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 4-12 Copyright © 2002 Telect, Inc.
5. Cross Connections ! WARNING WARNING! Fiber cables transmit laser or invisible infrared light. To avoid eye damage or blindness, never look directly into fibers or connections. WARNUNG! Faserkabel übertragen unsichtbares Infrarotlicht. Um eine Schädigung der Augen oder Blindheit zu vermeiden, schauen Sie nicht direkt in die Fasern oder Stecker. ADVERTENCIA ! Los cables de fibra transmiten luz láser o infrarroja invisible.
1 2 3 4 5 7 6 9 10 11 12 13 14 15 16 8 Feeders Unassigned Distribution (Parking) Assigned Distribution to Subscriber 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
• For unassigned distribution or for disconnected subscribers, route the cable up and around one of the top two arcs and spools and then plug the connector (with dust cover attached) into one of the rubber holders between the feeders and the Patch Modules, as shown in the illustration. Parking for Unassigned Distribution Parking Unassigned Distribution Jumpers 5. Record splitter and subscriber assignments on the erasable label applied to the inside of the front door.
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 SPLITTER 1 1 FIBER CABLE 25 2 FIBER CABLE 26 3 FIBER CABLE 27 4 FIBER CABLE 28 5 FIBER CABLE 29 6 FIBER CABLE 30 7 FIBER CABLE 31 8 FIBER CABLE 32 9 FIBER CABLE 33 10 FIBER CABLE 34 11 FIBER CABLE 35 12 FIBER CABLE 36 13 14 FIBER CABLE 37 FIBER CABLE 38 15 FIBER CABLE 39 16 FIBER 17 FIBER 18 FIBER 19 FIBER 20 FIBER 21 FIBER 22 FIBER 23 FIBER 24 FIBER CABLE CABLE CABLE CABLE CABLE
6. Service ! WARNING WARNING! Fiber cables transmit laser or invisible infrared light. To avoid eye damage or blindness, never look directly into fibers or connections. WARNUNG! Faserkabel übertragen unsichtbares Infrarotlicht. Um eine Schädigung der Augen oder Blindheit zu vermeiden, schauen Sie nicht direkt in die Fasern oder Stecker. ADVERTENCIA ! Los cables de fibra transmiten luz láser o infrarroja invisible. Para evitar lesiones oculares o ceguera, nunca mire directamente a las fibras o conectores.
REPACKING FOR SHIPMENT 1. Tag the equipment showing owner’s name, address, and telephone number, together with a detailed description of the problem. 2. Use the original shipping container if possible. If you do not have it, package the equipment in a way to prevent shipping damage. Include the RMA inside the container and legibly print the RMA number on the outside of the package, near the shipping address. 3. Insure the package. NOTE Telect is not liable for shipping damage.
7. Accessories MDC-CB accessories and replacement items are listed in the following table. Contact Telect for price and availability. STANDARD ACCESSORIES Item Model 72-Channel Patch Module Connected to 100 Ft of OSP Cabling* (dry, flexible, unarmored cable with 72, 250 µm strands fully protected in subunits, along with fan-out blocks, one cable clamp and heat-shrink tubing) MDC-P72N-F100D * Custom cable lengths available. Splitter Modules 1x4 1x8 1 x 16 1 x 32 Cabinet Base, 12 in.
Item Cable Entrance Clamp Kit (includes 4 clamps) Ground Bonding Kit for Armored OSP Cable1 1. Model Illustration MDC-CLMP KIT-BOND Kit contains hardware for OSP armored cable from 0.5 in. (12.7 mm) to 1.6 in. (40.64). Kit also contains an 11 in. (~280 mm), 6 AWG ground wire assembly with single-hole lugs for #10 studs on both ends. Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 7-2 Copyright © 2002 Telect, Inc.
IN-CABINET SPLICING ACCESSORIES Item Model 72-Channel Patch Module Only* (with dust covers in both ends of SC/APC adapters; without cabling, clamps, or fan-out blocks MDC-P72N Splice Box* for In-Cabinet Splicing1 MDC-SPLC Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 7-3 Copyright © 2002 Telect, Inc.
Item Model Splice Cassette (includes cassette label) MDC-HS24 Splice Sleeves, Pkg of 12 101521-12 1. Illustration Installs on inside of rear door. Installation and routing of cable is different with in-cabinet splicing. Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Page 7-4 Copyright © 2002 Telect, Inc.
Telect assumes no liability for the application or use of these products. Neither does Telect convey any license under its patent rights or the patent rights of others. This document and the products described herein are subject to change without notice. Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Copyright © 2006 Telect, Inc.
Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700 Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com Copyright © 2002 Telect, Inc.
