User Manual

AS8100 Sitespan User Guide Version 3.7

605-0000-426

DLP 020

Draft Issue 6.0 Date 4/4/00

SETTING ALARM THRESHOLDS

Note: Not functional on AS4000 equipment.

Use the procedure below to set alarm thresholds to allow for efficient alarm

management of the system. Each alarm can be set so that alarms are only

indicated when those limits are exceeded.

STEP PROCEDURE

1. Start this procedure from Rack View.

2. Select a modem shelf by clicking on the desired shelf.

3. From the Edit menu or click right mousebutton, select AS4000(FA) Type Modem

Shelf Properties.

4. To set parameters for the desired alarm condition by click on ê on Alarm Field. This

drops a menu of alarm fields. Click the appropriate condition. The following alarms

may be set:

• 2 Mbit/s Signal Loss ( on E1).

• AIS (Incoming AIS on TU from Central Office).

• Comms Lost with ST (loss of frame alignment on Radio Link to ST).

• CT Power Fail (power supply out of spec on AU, SC or Modem).

• Frame Alignment (loss of frame alignment on Radio Link from ST).

• FRU Fail (Self test failed or SC unable to contact card).

• Poor BER (Radio link bit error rate worse than 1 in 10

-3).

• Total RX Radio Fail.

• Total TX Radio Fail.

• Trans system clock fail.

• Unavailability ( no message are being received from the operations and

maintenance channel).

Note: All other fields are not applicable to AS4000.

5. Set the value for Intermittency Window by placing cursor at the start of the box and

typing value. The intermittency value is the time interval over which the alarm

conditions are measured in milliseconds.