Fire WAN Troubles Reference

This section lists and explains the possible fault conditions of the Fire WAN network.
Trouble messages appear on the Desigo CC station in the Event List.

  • Control Panel Not Responding
    The fire alarm panel attached is not communicating and has dropped its modem carrier signal. This is a normal trouble when a panel has been powered down.
    This trouble will also correspond with a Carrier Fail LED on a HUB-4 port and a Not Responding fault on Desigo CC .
  • Style 7 Failure
    The fire alarm panel is still communicating, but the HUB-4 has noticed an open or break failure in one of the two pairs used for Style 7.
    The Open/Short LED on the HUB-4 will light with this trouble.
  • Ground Fault
    The HUB-4 is indicating a ground on a port for the wiring between the HUB-4 in the remote fire panel and itself.
    The Gnd Fault LED on the HUB-4 will light with this trouble.
  • Internal Modem Failure
    The HUB-4 is indicating a failure or a missing Modem Block on one of its ports.

Additional Non-Port Related Troubles

  • Module ROM Failure
    A HUB-4 running internal memory tests has found a failure in its ROM (Flash).
  • Module RAM Failure
    A HUB-4 running internal memory tests has found a failure in its RAM.
  • No Battery in PSC-12
    A PSC-12 is configured in the <GMS> to have a battery and the battery is not present.
  • PSC-12 is on Battery
    A PSC-12 has indicated it is running on its battery.
  • Low Voltage Battery
    A PSC-12 has indicated that it has a battery whose voltage is low due to failure to take a charge, terminal troubles, and so on.
  • Battery Cutoff
    A PSC-12 has indicated the battery cutoff switch has fired.
  • Ground fault positive in PSC-12
    A PSC-12 has found a ground fault on its positive output.
  • Ground fault negative in PSC-12
    A PSC-12 has found a ground fault on its negative output.
  • Thermistor Trouble
    A PSC-12 has found trouble with an internal thermistor.
  • Tamper Switch Trouble
    A PSC-12 has found a supervision trouble with its tamper switch.
  • AC Failure
    A PSC-12 has reported the loss of AC.
  • AC Brownout
    A PSC-12 has reported low AC levels or brownout conditions.
  • 2A src to backplane shutdown
    A PSC-12 has reported the output providing the 2-amp source to the backplane has been shutdown.
  • No 6.2V supplied to backplane
    A PSC-12 has reported the output supplying the 6.2V to the backplane has been shutdown.
  • Loop A Failure
    A NIC-C set up for Style 7 has found a failure with HNET on its loop A pair between the NIC-C and a Desigo CC SNC card.
  • Loop B Failure
    A NIC-C set up for Style 7 has found a failure with HNET on its loop B pair between the NIC-C and a Desigo CC SNC card.
  • Style 7 Failure
    A NIC-C is configured for Style 4 and is wired as Style 7.
  • Ground Fault
    A NIC-C has reported a ground fault on its HNET wiring between an SNC card in the Desigo CC and itself.