Altigen AltiWare ACC 5.2 Administration Manual page 131

Error Message
L1 failure: <Remote
Alarm Indication
(RAI)>
L1 failure: <No Sync
Frames
L1 failure: <Red
Alarm>
[PRI only]
L2 Failure: <No Sync
Flag>
[PRI only]
L2 Failure: <Not
established>
Reading the Statistics
The Statistics panel displays the number of errors that have occurred since the last
system reboot or statistics clearing. There may be non-zero values when configuring the
T1 span for the first time. You can clear these fields with the Clear button.
Error
Frame Errors
OOF Errors
Rec Frame Slips
Meaning
Layer 1 failure, CO
notifies that the
configuration is wrong;
RAI = Remote Alarm
Indicator
Layer 1 failure, physical
layer; no valid framing is
detected.
Layer 1 failure, physical
layer; Bi-Polar Violations
(BPV), Line Code
Violations (LCV), or Out
Of Frame detected
Layer 2 failure, data link
layer; no sync flag has
been detected in data
link layer
Layer 2 failure, data link
layer; the peer-to-peer
link has not established
in data link layer
Meaning
Number of framing bit errors. In T1 mode, a framing bit
error is defined as an incorrect FS-bit value. The counter is
suppressed when framer loses frame alignment
The Out Of Frame counter registers every time the T1 chip
is forced to re-frame when receiving a frame with severe
errors.
The Receiver Frame Slips counter shows the number of
frame slips for the receiver.
AltiWare ACC 5.2 Administration Manual 119
Chapter 11: Board Configuration
Action
Correct the settings.
Possible span mis-
configuration (ESF is
selected but the actual
framing is SF, or vice
versa). Check span
configuration.
Location condition,
equipment problem.
- For excessive BPV/
LCV, check AMI/B8ZS
setting.
- For OOF, check the
MVIP bus master
setting.
OR
Have CO perform a line
test to check for a faulty
cable or line.
Check if D-channel is
active or not
CO must activate HDLC
link