Reading The Status Messages - Altigen MAXCS ACC 6.0 Administration Manual

Chapter 11: Board Configuration

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
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MAXCS ACC 6.0 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,
2.
replace board.
Check MVIP clock.
1.
Reset board. If this
2.
does not 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.