Operational tests
Office alarm test
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Description
This test verifies proper operation and wiring of the office alarms in a Network Equipment
Building System (NEBS) environment.
Audible and visual reporting of critical, major, minor alarms will be verified.
Prerequisite
The following is a list of items to verify before beginning tests in this section.
The 1665 Data Multiplexer (1665 DMX) Main OLIUs should be optically looped from
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the previous section. Verify that the 1665 DMX shelf is clear of all alarms (only green
LEDs are lighted) prior to and after completing this test.
The office alarm cable will be temporarily connected during this procedure.
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"Office Alarm Connections" (p. 5-5)
It is a requirement that alarms on the 1665 DMX do not affect and are not affected by
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other equipment via office alarm connections. During this test, the alarm state of other
equipment connected to the same office alarms as the 1665 DMX should be examined
after creating or clearing every alarm.
A properly grounded ESD wrist strap must always be worn while handling circuit
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packs.
This test should be performed on all shelves where office alarm reporting is required.
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After completing the office alarm test, the 1665 DMX office alarms should be
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disconnected from the office alarm system for the remainder of the test procedures.
This will prevent the office alarms from being activated while performing the other
tests in this section.
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5 - 4
lists the office alarms connections.
Office alarm test
Table 5-1,
365-372-304R7.1
Issue 1, November 2007