Verilink DIU 2130 (880-503297-001) Product Manual - Manual (Page 46)

Troubleshooting
4-4 Verilink
• 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 4-2 Alarm Buffer
Status Code The status code column displays a decimal code when using an
ASCII terminal. (Varies depending on the SNMP or ASCII terminal
used.)
Alarm
Description
The alarm description column lists the text which is:
• printed on the display
• sent to the alarm printer
• saved to the alarm buffer/database
Classifications Verilink classifies alarms into the following severities:
• Critical
• Major
• Minor
• Warning
• Info
• Cleared
Problem Types These classifications are further categorized into the following
problem types:
• LOS
• LOF
[1,1] SCC > o
DIU 2130 [1,2] AIS Major Alarm port 1 3-09-98 18:38:35
DIU 2130 [1,2] 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