Users Manual Part 2

Name of
Connec-
tor
Type To/From Comment
RX3 QMA Preselector/ Duplex-
er
RF RX signal and +7 V dc
Tx QMA Hybrid Combiner/
Cavity Combiner
RF TX signal
Power MOLEX Power Supply Unit
Pin 1 - 3 GND
Pin 4 +7 V
Pin 6 - 7 +28.5
V
Pin 5, 8 -
14
not
used
Table 100: Base Radio – Service Cable Pinouts
RJ45 PIN D-SUB 9 FEMALE PIN Description
1
2
3
4 3 Rx
5 5 GND
6
7 2 Tx
8 5 GND
9
10.4
Replacing the Base Radio
For a list of available Field Replaceable Units (FRUs), see Field Replaceable Units (FRUs) on page
478.
Process:
1 Remove the Base Radio module, see Removing the Base Radio
on page 355.
2 Reinstall the new Base Radio, see Reinstalling the Base Radio on page 356.
3 Perform the procedures from the Configuring and Verifying the Base Radio on page 251 section.
4 If Encryption and/or Authentication is used, see MTS LiTE, MTS 2, and MTS 4 Restoration
manual (for DIPS/DIPC/X Core systems) or Service Manual (DIPM system) for details on
loading Ki's into MTS.
6802800U74-AP
Chapter 10: Base Radio
354