User Manual

RF Cabinet Interconnect Cables – continued

Jan 2002

H-15

SC4812ET BTS Optimization/ATP — CDMA LMF

DRDC/TRDC Cables and Cable

Connections

The DRDC is a Duplexer, RX Filter, and Directional Coupler which

provides the RF interface at the rear of the cabinet. The connections are

the antenna connection (outside rear), transmit into the DRDC TX filter.

Receive out of DRDC (RX filter), and Directional coupler.

The TRDC is a TX filter/RX filter/Directional Coupler that is the same

as the DRDC except the TRDC has two antenna outputs (TX only and

RX only) The TRDC is not available in the 1.9 GHz band.

See Figure H-11, Figure H-12, Figure H-13, and Figure H-14 for the

cable diagram that fits the configuration of your BTS site.

. . . continued on next page