Altigen ACM 6.7, Administrator'S Manual

Page: 161 / 470

Configuring the Triton T1/E1 Board
MAXCS ACM 6.7 Administration Manual 147
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.
Note: For ideally synchronized systems, Transmit and Receive Frame Slips counters
should be ‘0.’ Continuous update of the frame slips counters means that transmit
and receive frequencies are not equal. In this case, you should check the system
and CT-Bus clock setup.
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