How do I determine what has caused a trouble signal?
The WPIM's LED indicators flash in a sequence that will uniquely identify all conditions contributing to the assertion of the trouble alarm to the ACP. Refer to the "WAS Configuring and Operating" manual or WPIM label for exact details on the flash sequence.
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What happens if the WAPM can’t communicate with its PIM?
If a WAPM can't communicate with its PIM, the PIM, after missing two consecutive heartbeat messages will assert a trouble alarm to the ACP.
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What is “loss of communication” trouble?
A WPIM will indicate a "loss of communication" trouble whenever
the WPIM has missed
receiving two or more consecutive heartbeat messages from the
WAPM to which it is linked.
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What do I do with the PIM’s trouble signal?
The PIM's trouble signal, for each access point, should be tied to a separate alarm input on the ACP. When any type of trouble occurs, the ACP asserts an alarm indicating that there is some form of trouble at particular access point. The ACP will use this alarm to indicate which access point has the trouble. The ACP will not identify the cause of the trouble. A service person must visit the PIM causing the trouble alarm and the source of the trouble will be visually indicated on the PIM's LEDs (refer to the "Configuring & Operating a wireless Access System” manual or the PIM label for PIM LED indications).
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The ACP reports a trouble when there is no trouble, why?
If the ACP reports that a trouble when there is no trouble and does not report a trouble when there is a trouble, then the voltage level that is being presented to the ACP from the PIM for a trouble condition needs to be inverted. Refer to the CDT to reconfigure the PIM for proper operation.
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