Operation
Alarm Relays Tab
Select the Alarm Relays tab to configure the alarm relays. Alarm relays provide additional means for notification of an alarm condition. The setting of the logic radio buttons determines the alert behavior when an alarm condition occurs.
1.Select Available for each alarm relay that is connected to the CMC. If an alarm relay that is not connected is shown as available, the CMC will erroneously detect an alarm condition and send alerts. For more information about alarm relays, refer to the CMC documentation.
2.Select the appropriate logic in the Alarm Logic field:
—If an alarm occurs when Close at Alarm is selected, an electrical circuit closes. For example, a light switches on, a door opens, or a siren sounds.
—If an alarm occurs when Open at Alarm is selected, a signal turns off. For example, a green light that indicates normal operation switches off to denote abnormal status for the detector providing the input.
3.Select Enabled in the Local Silence Button field to allow the external alarm to be silenced by pressing the Enter/Alarm Silence button on the CMC front panel. An external alarm (a horn or siren, for example) connected to the alarm relay can be silenced for just the current alarm. This acknowledges the alarm condition while the cause is corrected and still allows subsequent alarm conditions to register at the CMC and set off a new audible alarm.
HP Rack and Power Manager User Guide |
