.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 cabi- net’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 patch module contains SC/APC adapters to interface the distribu- tion fiber in the rear compartment to the cross connections in the front compartment.

•Feeder cable is anchored along the rear side wall where 900 µm fiber breaks out into subunits/buffers and routed to 16 SC/APC interface adapters near the top of the cabinet.

 

Subunit/Buffer

 

From Feeder

 

Cable Breakout

 

to Rear-Side

 

Feeder

Feeders

Adapters

 

Unassigned

Fiber Furcated

Distribution

From Multifiber

(Parking)

Buffer to

 

 

900-µmSingle

 

Fiber Loose

 

Tubing

Assigned

Distribution to Subscriber

OSP

Distribution

Cable

OSP Feeder

Cable

Splitter

Bulkhead

Splitter Module 2 mm Jumpers

Front View With Door Open*

Rear View With Door Open*

* Splitter and Patch Modules are sold separately.

Each SC/APC adapter at the top of the cabinet serves to feed the fiber signal to a blue jumper in the front compartment, shown in the preceding illustration. The blue jumper is routed down through the right portion of the front compartment, then around a couple of spools and an arc. The two spools at the bottom route the blue fiber to a Telect Splitter Module.

Up to 18, 1x4, 1x8, 1x16, or 1x32 Telect Splitter Modules can be installed in the splitter bulkhead at the bottom of the front compart- ment. 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.

Splitter module installation and all of the distribution changes occur in this front compartment:

•Unassigned jumpers are routed via spools and arcs to a parking station for later subscriber assignment.

•Assigned jumpers are routed via the spools and arcs to the front of the SC/APC adapters in the front of the patch modules for cross connection to the distribution fiber connected to the rear of the patch modules.

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

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Copyright © 2002 Telect, Inc., All Rights Reserved