Verilink DPRI 2922 (880-503142-001) Product Manual - Manual (Page 79)

Verilink DPRI 2922
4-1
Chapter
4
Troubleshooting
Controller card(s) poll the various modules for alarms. If alarm
reporting is enabled for the node and for the module(s), the node
controller card retrieves and sends the alarm to Access Manager
2000, Node Manager 2000, or an SNMP agent. Various alarms can
also be set up via the NCM 2000 module to trigger the dial backup
or backup T1 as part of the Advanced Automatic Protection
Switching feature.
An alarm list is provided under the alarms displays of the various
options of AM2000, NM2000, SNMP, or ASCII.
Alarms can also be automatically sent to a specified printer by
setting up the printer address in the various management utilities
menus.
Interpreting Alarms
The alarm buffer displays the following information about alarms
(This information may vary depending on the controller module
and management method used):
• Whenever the system powers up and any module does a self-
test
• Power supply input is lost
• A default or user-designated threshold is exceeded
• A Yellow Alarm is received from the network (DS1)
• 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 Data Port loopback is present
• A module fails
• A module is removed from the shelf
Figure 4-1 Alarm Buffer
[1,1] DPRI 2922 > o
DPRI 2922 [1,1] AIS Major Alarm port 1 3-09-98 18:38:35
DPRI 2922 [1,1] AIS Threshold Cleared port 1 3-09-98 18:37:17
Press enter to continue
Alarm Description Alarm Classification Alarm Date and Time Module Type Shelf/Slot
Location
Port