Installing The Hybrid Combiner - Motorola MTS LiTE Installation, Configuration And Basic Service Manual

6802800U74-AN
Chapter 15: Expansion Options
7
N/A
3066543B05
2 in 3066545B02
A)
NOTICE: Index numbers in table above refer to cable connections shown in
RF Cabling Diagram for MTS 2 with one TX/RX ant. and up to two RX ant. after
Expansion on page 417
after Expansion on page 418
NOTICE: DC Power Cable (3066545B01) already exists before expansion of MTS 2.
10 Switch ON the Power Supply Unit (You do not need to do this if doing a hotswap).
15.1.2.2

Installing the Hybrid Combiner

If current MTS 2 configuration include one Duplexer, installation of the Hybrid Combiner also included
in the expansion option is necessary.
NOTICE: If current MTS 2 configuration includes two Duplexers, installation of the Hybrid
Combiner is not needed.
Procedure:
1 Switch OFF the Power Supply Unit.
2 On the Duplexer, unplug the TX cable connected to the first Base Radio.
3 Assemble the Bracket with the three M6x10 screws.
4 Fasten the two M4x10 screws that are to hold the Hybrid Combiner, but do not tighten them
fully.
5 Place the Hybrid Combiner on the bracket of the cabinet, with the heat sing facing inwards
toward the center of the cabinet.
6 Slide the Hybrid Combiner at an angle ensuring that the lip at the back of the Hybrid Combiner is
secured behind the bracket.
7 Tighten the two M4x10 screws to the bracket.
8 Attach the TX cables according to the scheme below:
# Part number
4 3066543B12
8 3066543B05
9 3066543B06
NOTICE: Index numbers in table above refer to cable connections shown in
RF Cabling Diagram for MTS 2 with one TX/RX ant. and up to two RX ant. after
Expansion on page
9 Switch ON the Power Supply Unit.
420
Rx3
Tx Cable N/A
Ethernet N/A
or in Figure 197: E1 and Ethernet Cabling Diagram for MTS 2
for A).
From To
BR1 / TX
Hybrid Combin-
er / TX A
BR2 / TX
Hybrid Combin-
er / TX B
Hybrid Combin- Duplexer / TX
er / TX Out
417.
Filter pos 3 / BR2 BR2 / Rx3
Filter pos 2 / Tx BR2 / Tx
SC1 / BR2 BR2 / SC1
Notes
Existing cable previously
unplugged from the Du-
plexer
Figure 196:
Figure 196: