User Manual

Table Of Contents
Document name:
OMU Commands and Attributes 1.0.0 v1.0
Version:
1.0
11.7.2 Threshold Usage
By default, both upper and lower thresholds are used in the PW2 alarm.
11.7.3 Time
Time threshold defines how many seconds the alarm should be measured as in error
before an alarm is triggered.
11.7.4 Upper
Upper threshold is maximum voltage level * 10 of the power supply before an alarm is
triggered. For example, configuring the upper level as 155 means that if voltage level
exceeds 15.5 V, an alarm is triggered.
11.7.5 Lower
Lower threshold is minimum voltage level * 10 of the power supply before an alarm is
triggered. For example, configuring the lower level as 143 means that if voltage level
drops below 14.3 V, an alarm is triggered.
11.8 PW3 – Power Supply 3
11.8.1 Description
The Power Supply 1 is the +6.45 V distribution as measured in the Rack Communication
Boards, Splitter Boards and Combiner Boards in the different racks of the Optical Master
Unit.
If level is outside configured interval, an alarm is triggered.
11.8.2 Threshold Usage
By default, both upper and lower thresholds are used in the PW3 alarm.
11.8.3 Time
Time threshold defines how many seconds the alarm should be measured as in error
before an alarm is triggered.
11.8.4 Upper
Upper threshold is maximum voltage level * 100 of the power supply before an alarm is
triggered. For example, configuring the upper level as 660 means that if voltage level
exceeds 6.60 V, an alarm is triggered.
11.8.5 Lower
Lower threshold is minimum voltage level * 100 of the power supply before an alarm is
triggered. For example, configuring the lower level as 610 means that if voltage level
drops below 6.10 V, an alarm is triggered.
11.9 PW4 – Power Supply 4
11.9.1 Description
The Rack Communications Board in rack 1 constantly monitors the backed up 6.45 V
power supply level feeding the controller, modem and Rack Communications Board. If
the level increases above or drops below configured thresholds, an alarm is triggered.
PW4 alarm is measured in Rack Communications Board (RCB).
Note! Since controller runs on this power supply, it is only possible to alarm when power
supply changes slightly, not when it disappears completely.
11.9.2 Threshold Usage
By default, both upper and lower thresholds are used in the PW4 alarm.
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