Altigen MAX Communication Server ACC 6.0, Administration Manual

Page: 137 / 453

Chapter 11: Board Configuration
MAXCS ACC 6.0 Administration Manual 123
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.
L1 failure: <Red
Alarm> Layer 1 failure, physical
layer; Bi-Polar Violations
(BPV), Line Code
Violations (LCV), or Out
Of Frame detected 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.
[PRI only]
L2 Failure: <No Sync
Flag> Layer 2 failure, data link
layer; no sync flag has
been detected in data
link layer Check if D-channel is
active or not
[PRI only]
L2 Failure: <Not
established> Layer 2 failure, data link
layer; the peer-to-peer
link has not established
in data link layer CO must activate HDLC
link
Error Meaning
Frame Errors 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
OOF Errors The Out Of Frame counter registers every time the T1 chip
is forced to re-frame when receiving a frame with severe
errors.
Rec Frame Slips
The Receiver Frame Slips counter shows the number of
frame slips for the receiver.
Line Code Errors
Line Code Error is defined as an occurrence of a bi-polar
variation or excessive zeroes.
Bit Errors Bit Errors are defined as a CRC-6 error in ESF, FT-bit
error in SLC-96 and F-bit or sync bit error in SF.
Xmt Frame Slips
Transmit Frame Slips counter shows the number of
frame slips for the transmitter
Clear button
Use the Clear button to reset the statistics counters.
Error Message Meaning Action