Service Manual

438
6802800U74-AN
Chapter 15: Expansion Options
Figure 205: ATCC Cabling Diagram — MTS 4 with 1 TX Antenna after Expansion
PSU2 / CAN 1
15.5.2
Adding the Four-Channel Cavity Combiner
Follow the process below to install the Cavity Combiner.
NOTICE: Procedure is the same whether it is an Auto Tuned Cavity Combiner (ATCC) or a
Manual Tuned Cavity Combiner (MTCC) being installed.
CAUTION: The cavity Combiner can weigh up to 11.8 kg (26 lbs.). Use caution when removing
or installing Cavity Combiner into the equipment rack. Make sure the combiner is fully
supported when free from mounting rails to avoid injury to personnel and equipment damage.
Process:
1 Install the new Cavity Combiner into the cabinet.
See Installing the Cavity Combiner into the Cabinet on page 439.
2 Update the mapping list with the new unit TrackID.
See Updating the Mapping List with the New TrackID on page 286.
DUPLEXER / CAN OUT
DUPLEXER / TX
ATCC
FRONT VIEW
ATCC
DC IN
TX A
TX B
TX OUT
Inside ATCC
Interconnection
ATCC
DC IN
TX A
TX B
TX OUT
Inside ATCC
Interconnection
BR1 / TX
BR3 / TX
BR4 / TX
BR2 / TX
CAN 1 CAN 2
CAN 1 CAN 2