Verilink HDM 2182 (880-502925-001) Product Manual - Manual (Page 71)

Verilink HDM 2182 User Manual 6-1
Chapter
6
Troubleshooting
What Elicits an Alarm
The NCM 2000 module polls the HDM 2182 modules for alarms.
If alarm reporting is enabled for the node and for the HDM 2182,
the NCM retrieves and sends alarms to the Craft interface, Node
Manager, or an SNMP agent where they can be viewed.
Alarms can also be automatically sent to a specified printer by
setting up the printer address in the various management utilities
menus. See the appropriate management utility user manual for
more information on how to do this.
The Alarms
The alarm list will show:
• Whenever the system powers up and any module performs a
self-test
• Power supply input is lost
• A default or user-designated threshold is exceeded
• A Yellow Alarm is received from the network
• An unframed all-ones or alarm indication signal (AIS) is
reveived from the network
• There is a loss of signal (LOS) or loss of frame (LOF)
• A CSU or DIU loopback is present
• A module fails
• A module is removed from the shelf