5-1
9621-A2-GB20-30
August 1997
Maintenance and Troubleshooting
5
This chapter consolidates all indicators, ASCII alarms, device messages, and
backup-related last cause messages.
LEDs
The FrameSaver 9620 access unit’s faceplate includes 12 LEDs (light-emitting
diodes) that provide status on the access unit, its network interface, and the DTE
interfaces. The following illustration shows a FrameSaver 9620 access unit
faceplate.
CTS
OK
ALM
TST
BKP
DM
OOS
OOF/NSP1/P2 TXD
RXD
DTR
9621
496-14957
From the user interface – async terminal or NMS – access this status information
by going to the Control branch/menu and choosing Select LEDs
.
The following tables tell you how to interpret the LEDs.