Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
Table 9-1 - continued. CM4 Diagnostic Counters
Counter Name (NMS or SCL) Update Rate / Method Severity Effect on System Function & Notes
Accumulated Received Line Code
Violations
NMS:
Acum Line Code Violation
Cnt
SCL:
ABPV
Accumulated counter is
incr
emented b
y adding
current counter every second.
Minor Low level of Line Code
Violations has a minimal
effect on system if not
accompanied by other
trouble conditions.
Counter reports accumulated
count of Line Cod
e Violations
received at the Common
Module. Line Code Violations
are pulses of incorrect polarity
in the received signal.
Typically, this denotes errors
or noise present in the E1
signal at the multiplexer port or
improper AMI/HDB3 line code
configuration.
Accumulated Received Path Code
Violations
NMS:
Acum Path Code Violation
Cnt
SCL:
ABERS
Accumulated counter is
incr
emented b
y adding
current counter every second.
Intermediate Low level of Path Code
Violations has a minimal
effect on system if not
accompanied by other
trouble conditions.
Counter reports accumulated
count of Path Code Violations
received at the
Common
Module. Path Code Violations
are bit errors in received signal.
In ESF framing mode this
equals to the CRC6-error
count. In SF mode, it is the
framing bit error count.
Typically, this denotes errors
or noise in the E1 signal at the
multiplexer port or improper
line format configuration.
Accumulated Received Frame Bit
Error
IMUX 2000E1 RFL Electronics Inc.
NMS: Acum Frame Bit Error Cnt
SCL:
AMFOS
Accumulated counter is
incr
emented b
y adding
current counter every second.
Intermediate When Frame Bit Error
condition exists, payload
traffic may be corrupted.
Disturbance may spread to
other nodes.
Reports accumulated count of
Frame
Bit Error at the
Common Module. Frame Bit
Error is defined as errors in the
framing pattern. Typically, this
denotes bit errors or bad E1
signal at the multiplexer port,
improper line format setting or
improper network timing
configuration.
Accumulated Received E-Bit errors
(E1 only)
NM
S: Acun Ebit Cnt
SCL:
AEBIT
Counter contains r
esult for
pr
evious 1s interv
al.
Intermediate Payload traffic has been
corrupted. Severity needs
to be checked at receiver
node.
E-Bit errors are returned to the
repor
ting CM when it has
transmitted frames which fail
CRC check. This denotes bit
errors on the transmit side.
January 23, 2004 9-13 (973) 334-3100
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