Lucent Technologies DDM-2000 OC-3, User & Service Manual

Page: 1222 / 2536

RTRV-ALM 31 of 20 Page RTRV-ALM
Description Report Description Report
(Contd) Descriptions RTRV-ALM 11-3. Table
Meaning Description
OC3 LOP STS1 inc. x
(LOP) loss-of-pointer a detected has system The
for found be not could pointer STS-1 valid A condition.
signal. STS-1 identified the in frames consecutive eight
on STS-1 the on occurs condition this If causes: Likely
unprotected an is cause likely the lines, OC-3 both
this If end. far the at CP DS3 a or MXRVO an of failure
cause likely the line, OC-3 one only on occurs condition
end. far or end near the at CP OLIU the of failure is
(BER) degrade sig. STS1 inc.
error bit the applications, ring switched path STS-1 For
the exceeds signal STS-1 specified the of (BER) ratio
threshold. degrade signal user-provisioned
OLIU an of failure or fiber a at Failure causes: Likely
path. STS-1 the in point some at pack circuit
unequipped STS1 inc.
(SONET code unequipped the detected has system The
in-service an on byte=0) label code signal overhead path
channel. STS-1
has cross-connect STS-1 upstream An cause: Likely
deleted. been
(BER) failed sig. STS1 inc.
the of (BER) ratio error bit the applications, ring For
threshold fail signal the exceeds signal STS-1 specified
(10
−
3
(10 or )
−
6
the rings, path-switched VT1.5 For ).
each in AIS Path VT inserting by responds system
the Locally, STS-1. the in contained VT pass-through
other the on STS-1 the from VTs the select will system
appropriate. as ring,
CP OLIU end near the of Failure causes: Likely
OLIU, end far the of failure failure, STS-1 the reporting
reporting also is OC-n the if fiber receive the of failure or
failure. a
yellow STS1 inc.
yellow STS-1 incoming an detected has system The
terminating path far-end the by inserted signal
equipment.
an of failure unidirectional Unprotected causes: Likely
path. end-to-end the in point some at fiber or CP OLIU
11-552
2000 February 2 Issue
OC-3 DDM-2000