Altigen ACM 6.7 Administrator's Manual page 160

Configuring the Triton T1/E1 Board
Figure 76. Triton E1 configuration dialog box
Reading the Status Messages
If the channel group is working, the Status line displays OK. This status line is updated
every 3 seconds. If there is an error, a message is displayed. The following table lists
the types of error messages and the appropriate actions.
Error Message
HW failure: <No
Answer>
HW failure: <No
Clocks>
L1 failure: <No
Signal (LOS)>
L1 failure: <Alarm
Indication Signal
(AIS)>
L1 failure: <Remote
Alarm Indication
(RAI)>
L1 failure: <No Sync
Frames
146
MAXCS ACM 6.7 Administration Manual
Meaning
Major hardware problem.
Board is not responding to
commands. Reasons could
be: 1) DSP loading failure;
2) If PRI, board failed.
No clock signal is detected
on T1 interface drop.
Layer 1 failure, physical
layer; LOS = Loss of Analog
Signal
Layer 1 failure, CO sends all
1's to our T1/E1; AIS =
Alarm Indicator Signal; all
ones detected
Layer 1 failure, CO notifies
that the configuration is
wrong; RAI = Remote Alarm
Indicator
Layer 1 failure, physical
layer; no valid framing is
detected.
Action
Reset board.
1.
If error continues, replace
2.
board.
Check MVIP clock.
1.
Reset board. If this does not
2.
work, replace board.
Check T1/PRI cable and change
if necessary. If cable is okay, CO
is not sending any signal.
Contact CO.
To locate the AIS alarm, have
the carrier check the T1 network
element connected to the T1
interface and trace the problem.
Correct the settings.
Possible span mis-configuration
(ESF is selected but the actual
framing is SF, or vice versa).
Check span configuration.