Verilink HDM 2180 (880-503048-001) Product Manual Manual do Utilizador descarregar pdf (Página 69)

Verilink HDM 2180 User Manual 6-1

Chapter

Troubleshooting

What Elicits an Alarm

The NCM 2000 module polls the HDM 2180 modules for alarms.

If alarm reporting is enabled for the node and for the HDM 2180,

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

information on how to do this.

The Alarms

The alarm list displays:

• 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

Alarm Listings

On any of the various listings of the alarms being received by the

NCM for the HDM, the alarm listing will generally show the

following information about the alarms (This may vary depending

on the management method you are using).

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 78 79

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Verilink HDM 2180 (880-503048-001) Product Manual Manual do Utilizador Página 69