User's Manual

68P80801H45-1 1/20/2002 47

EBTS System Manual - Vol 2 Troubleshooting

QUAD Channel Base Radio/Base Radio FRU Replacement Procedures

QUAD BRs Radio FRU Replacement Procedure

Perform the following steps to replace any of the Base Radio FRUs:

NOTE

After a Control Board or BR replacement, the

integrated Site Controller (iSC) reboots the BR.

Whenever the BR goes off-line, the Replacement BRC

Accept Timer begins counting down. A BR reboot

occurs if the BR remains off-line as the timer times out.

(The timer’s default period is three minutes.) If

someone turns on the BR before the timer times out,

power down the BR. Then wait for the minimum

timer period before turning on the BR.

1. Notice the Power Supply rocker switch, behind the front panel of the Power

Supply. Set the Power Supply rocker switch to the OFF (0) position. Turning

off this switch removes power from the Base Radio.

2. Loosen the front panel fasteners. These are located on each side of the

module being replaced.

3. Pull out the module.

4. Insert the non-defective replacement module by aligning the module side

rails with the appropriate rail guides inside the Base Radio chassis.

5. Gently push the replacement module completely into the Base Radio chassis

assembly using the module handle(s).

CAUTION

DO NOT slam or force the module into the chassis

assembly. Rough handling can damage the connectors

or backplane.

6. Secure the replacement module by tightening the front panel fasteners to the

speciﬁed torque of 5 in-lbs.

7. Apply power to the Base Radio by setting the switch to the ON position.

8. Perform the Station Veriﬁcation Procedure.