Lucent Technologies FiberReach DDM-2000 - Page 1384

TAP-102
: Trouble Clearing 363-206-305
Page 4 of 14 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
MAJOR.
MJ
LED
lighted.
FAULT
LED
flashing on
DS1
,
DS1PM
, or
T1EXT
CP.
inc. (from DSX)
DS1 LOS
inc. (from DSX)
DS1 sig fail
†
Hard failure of upstream equipment
or facility (towards the DSX-1 or T1
interface). The DS1 or T1 input is
disconnected at the backplane or the
DSX-1 or T1 interface; equipment is
failed or removed at the DSX-1 or T1
interface. Mismatch of the line code
(AMI/B8ZS); cross talk in office
wiring; failure of
DS1
,
DS1PM
, or
T1EXT
circuit pack.
Step 9
MAJOR.
MJ
LED
lighted.
FAULT
LED
flashing on
DS3
CP.
inc. (from DSX)
DS3 AIS*
inc. (from DSX)
DS3 LOS*
inc. (from DSX)
DS3 OOF*
inc. (from DSX)
DS3 sig failed*
Equipment failed or removed at
DSX-3; DS3 input disconnected at
DSX-3 or at DDM-2000 backplane;
an out-of-frame DS3 signal incoming
to the DSX-3 at far end; unprotected
failure of
DS3
CP at far end or near
end; DS3 signal looped at both ends.
Step 11
MAJOR.
MJ
LED
lighted.
illegal CP type An illegal or unknown circuit pack
type has been inserted into the shelf.
Remove circuit pack and install
correct circuit pack.
inc. STS1 AIS* Incomplete or incorrect
cross-connect provisioning in
end-to-end network. In ring
applications, unprotected removal or
failure of
OLIU
circuit pack at far end
or fiber failure.
TAP-118
inc. OC3 line
AIS*
inc. OC12 line
AIS*
Failure of
OLIU
circuit pack at the far
end.
Step 54
inc. VT AIS* Incomplete or incorrect
cross-connect provisioning in
end-to-end network. In ring
applications, unprotected removal or
failure of
DS1
,
DS1PM
, or
T1EXT
circuit pack at far end; fiber or
OLIU
failure.
TAP-118
Table A – Major (MJ) Alarm Conditions (Continued)
Alarm Level
or LED
Indication
Trouble Description
(Note) Likely Causes Step or Procedure