User's Manual

Alarms Testing

68P09255A69-3

Aug 2002

1X SC4812ET Lite BTS Optimization/ATP Software Release 2.16.1.x

PRELIMINARY

3-104

AC Fail Alarm

Table 3-56 gives instructions on testing the AC Fail Alarm.

Table 3-56: AC Fail Alarm

Step Action

NOTE

- Back-up batteries must be installed when performing this test.

- To prevent inadvertently shutting down the RF compartment electronics, the batteries should be

charged before performing this test.

Set the ACLC MAIN circuit breaker to OFF.

- The LMF should report an alarm for an AC Fail condition as BTS Relay #21, BTS Relay #23,

BTS Relay #24, and BTS Relay #29 contacts, respectively.

- On the MAP, the MAJOR ALARM (red), MINOR ALARM (amber), and RECTIFIER FAIL

(red) LEDs should light.

- On the rectifiers, the DC and PWR LEDs should light red.

2 Set the ACLC MAIN circuit breaker to ON.

- On the LMF, the AC Fail alarm should clear.

- On the MAP, the MAJOR ALARM, MINOR ALARM, and RECTIFIER FAIL LEDs should

extinguish.

- On the rectifiers, the DC and PWR LEDs should change to green.

Minor Alarm

Table 3-57 gives instructions on performing a test to display a minor

alarm.

Table 3-57: Minor Alarm

Step Action

1 Set the TCP switch on the MAP to OFF. This will generate a minor alarm.

- The LMF should report the minor alarm as BTS Relay #24 contacts.

- The TC DISABLE (red) and MINOR ALARM (amber) LEDs on the MAP should light.

2 Set the TCP switch to ON.

- The alarm condition indications should clear.

Rectifier Alarms

The following series of tests are for single rectifier modules in a multiple

rectifier system. The systems include a three rectifier and a four rectifier

system.