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INM MTL SUM5 Rev 7
DRAFT - 09 June 2021 DRAFT - 09 June 2021
2.2.14 WD Watchdog Relay
A Watchdog Relay is available as standard to provide a signal to a 3rd party device to
indicate a fault has been detected within the annunciator. The following options can be
congured in software.
• All faults.
• Field contact fault.
• System fault.
• Comm’s fault.
• Card fault.
• LED fault.
• Power fault.
Typical Volt Free Relay Contact Outputs
WARNING !
Hazardous voltages may exist on the rear panel connections when connectors are
removed. Take care not to touch any exposed parts