Lucent Technologies Release 6 100A and 200A Lightguide Equipment, Lightguide Interconnect Units

DEFINITY Enterprise Communications Server Release 6	Issue 5
Installation and Test for Multi-Carrier Cabinets 555-230-112	May 1998
A Connecting Fiber Optic Cables
Optical Cross-Connect Hardware	Page A-10

100A and 200A Lightguide Equipment

Optical interconnects consist of LIUs without a trough between them. Incoming and outgoing cables connect directly to each other. This arrangement makes circuit changes more difficult, but reduces optical losses.

Optical cross-connect and interconnect fields are made up of the following:

■100A or 200A LIU

■10A Lightguide Coupling Panel

■C2000A-2 Connector Coupling (Multi-Mode) or C3000A-2 Connector Coupling (Single-Mode)

■1A4 Lightguide Trough

■1A6 Lightguide Trough

■Fiber Interconnect Cable (Multi-Mode or Single-Mode)

Lightguide Interconnect Units

The 100A LIU consists of a cabinet with retainer rings to hold slack fiber cables, mounting cutouts for two 10A lightguide connector panels, and a door with circuit labels on each side. See Figure A-4. The 100A provides up to 12 terminations.

The 200A Lightguide Interconnect Unit (LIU) can terminate up to 24 fiber connections. These fiber connections can be either single-mode or multi-mode.

Lightguide Troughs

Two types of troughs are used with optical cross-connect hardware. The vertical trough secures single fiber optic jumpers routed between LIU columns, and the horizontal trough is used at the bottom of an LIU column to store cable slack.