Motorola ASTRO 25 GTR 8000 Manual page 260

MN003286A01-E
Chapter 9: GTR 8000 Base Radio FRU Procedures
IMPORTANT: Powering down the base radio causes any affiliated subscribers to relocate to
another channel at the site or another channel at an adjacent site. Place the base radio in
Service Mode before powering down, so that the system does not attribute the loss of a channel
to a failure. Placing a base radio in Service Mode is performed using either the Unified Event
Manager (UEM) or Configuration/Service Software (CSS).
Procedure:
1 Wear an Electrostatic Discharge (ESD) wrist strap and connect its cable to a verified good
ground.
CAUTION: Wear the ESD strap throughout this procedure to prevent ESD damage to
any components.
2 Place the base radio with the duplexer module being replaced in Service Mode, as follows:
a Connect to the device modules Ethernet service port using CSS. See
an Ethernet Port Link on page
b From the menu, select Service → Test and Measurement Screen.
c Click Change to Service Mode.
d At the confirmation screen, click OK.
The base radio halts activity in the current mode and switches operation to the requested
mode.
3 Set the rocker switch on the front of the power supply to the Off (O) position.
4 Remove the duplexer from the base radio, as follows:
a Label and disconnect the LO Side Frequency, High Side Frequency, antenna output, and
ground cables from the duplexer.
b Using a T20 bit, remove the four screws which secure the duplexer to the rack.
5 Install the duplexer to the rack as follows:
a Using a T20 bit, secure the duplexer to the rack using the four screws removed in step 4b.
b Reconnect the LO Side Frequency, High Side Frequency, antenna output, and ground cables
from the duplexer.
6 Set the rocker switch on the front of the power supply to the On (I) position.
7 Place the base radio in Normal Mode, as follows:
a From the menu, select Service → Test and Measurement Screen.
b Click Change to Normal Mode.
c At the confirmation screen, click OK.
The base radio halts activity in the current mode and switches operation to the requested
mode.
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