| Description | This variable is a bitmap of the X21 Line ALarms
on the FRSM-HS1. A value of zero indicates no alarms.
Itemized below are the individual bits:
BitPosition Alarm
----------- -----
0 C/I signal is OFF (also used to indicate LOS)
1 Clock rate mismatch (used in DTE mode)
2 Internal Loopback (diagnostic loopback)
3 HSSI Local LoopA (line is in loopback)
4 HSSI Local LoopB (line is in loopback)
5 Remote Loopback (line is transmitting loopcodes)
6 For V35 DTE mode, DCD and CTS both are inactive
7 For V35 DCE mode, RTS is inactive
8 No cable attached to V35 backcard
9 Wrong cable attached to V35 backcard
If all the bit-states are 0s:
- line is not in alarm, or
- line not in loopback, or
- line is transmitting any loopback codes. |