User guide

Chapter 11: Board Configuration
118 MAXCS ACC 6.7.1 Administration Manual
Figure 64. 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 Meaning Action
HW failure: <No
Answer>
Major hardware problem.
Board is not responding to
commands. Reasons could be:
1) DSP loading failure; 2) If
PRI, board failed.
1. Reset the board.
2. If the error continues, replace
the board.
HW failure: <No
Clocks>
No clock signal is detected on
T1 interface drop.
1. Check the MVIP clock.
2. Reset board. If this does not
work, replace the board.
L1 failure: <No Signal
(LOS)>
Layer 1 failure, physical layer;
LOS = Loss of Analog Signal
Check T1/PRI cable and change
if necessary. If cable is okay, CO
is not sending any signal.
Contact CO.
L1 failure: <Alarm
Indication Signal
(AIS)>
Layer 1 failure, CO sends all
1’s to our T1/E1; AIS = Alarm
Indicator Signal; all ones
detected
To locate the AIS alarm, have
the carrier check the T1 network
element connected to the T1
interface and trace the problem.