9.14.1 How To Replace an Antenna Relay
Powering down the base radio causes any affiliated subscribers to relocate to another channel at the site or
another channel at an adjacent site. It is recommended to disable the base radio before powering down, so
the system does not attribute the loss of channel to a failure. You can disable a base radio using Unified
Event Manager or the Configuration/Service Software (CSS).
9.14.1 How To Replace an Antenna Relay
Procedure Steps
1
Wear an electrostatic discharge (ESD) wrist strap and connect its cable to a verified good ground. This strap
must be worn throughout this procedure to prevent ESD damage to any components.
2
Disable the base radio as follows:
a. Connect to the device modules Ethernet service port using Configuration/Service Software (CSS). See
Connecting Through an Ethernet Port Link, page 4-11
b. Select
Service → Test Measurement Screen
from the menu.
c. Click
Change to Service Mode
.
Step result:
The base radio is disabled.
3
Set the rocker switch on the front of the power supply to the OFF (0) position.
4
Remove the antenna relay from the base radio, as follows:
a. Mark all cables and remove. RX (NC) position, TX (NO) position, Antenna (C) connection position,
and power connection position.
b. Remove the two screws that are holding the antenna relay to the backplane cover using a T15 bit and
remove the antenna relay.
5
Replace the antenna relay to the base radio, as follows:
a. Attach the new antenna relay using the screws previously removed and torque to 15 in./lb.
b. Attach all cables and tighten the coax connectors.
6
Set the rocker switch on the front of the power supply to the ON (1) position.
7
Enable the base radio as follows:
a. Select
Service → Test Measurement Screen
from the menu.
b. Click
Change to Normal Mode
.
Step result:
The base radio is enabled.
6871022P86-A - November 2012
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