Verilink DCSU 2911 (880-502647-001) Product Manual - Manual (Page 67)

Verilink DCSU 2911 User Manual 5-1
Chapter
5
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 the Craft interface,
Node Manager, or an SNMP agent.
An alarm list is provided under the alarms displays of the various
options of the Craft interface, Node Manager, or SNMP.
Alarms can also be automatically sent to a specified printer by
setting up the printer address in the various management utilities
(Node Manager or similar SNMP) menus.
Interpreting Alarms
The alarm list displays the following information about alarms
(This information may vary depending on the controller module
and management method used):
• Whenever the system power cycles 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
received from the network
• There is a loss of signal (LOS) or loss of frame (LOF)
• A loopback is present
• A module fails
• A module is removed from the shelf
Figure 5-1 Alarm Buffer
[1,1] DCSU 2911 > o
DCSU 2911 [1,1] AIS Major Alarm port 1 3-09-98 18:38:35
DCSU 2911 [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