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

Page: 1980 / 2536

363-206-285 Trouble Clearing:
TAP-107
Issue 2, February 2000 Page 24 of 28
DDM-2000 OC-3 M
ULTIPLEXER
inhibit switch
ABN When associated with an OC-3 line, this message
means that the identified line is not selected as the
active receiving line, and a protection switch to
make this the active receiving line will not be done.
No further protection switching of specified line will
be done until the protection switch is reset. Note:
OC-3 line switching is unidirectional. Because of
this, the specified OC-3 line might still be active (if
the far end is selecting the specified line to receive
traffic), and the far end might still be free to switch
the line it is selecting to receive traffic. (See the
switch-line:
command.)
When associated with a FUNCTION UNITS slot,
TIMING slot, or timing reference, this message
means that the identified equipment or reference is
not active, and protection switches to the identified
equipment or reference will not be done until the
protection switch is reset. (See the
switch-fn:
and
switch-sync:
commands.)
Intersubsys com link failed
MJ In a MegaStar
*
2000 system, the SONET
subsystem session is active, but is unable to
communicate with the RADIO subsystem.
invalid CP switches
CR or MN When associated with a TIMING slot, this message
means that the timing mode switch settings on the
TGS/TG3 circuit pack are invalid.
lockout of protection
ABN When associated with an OC-3 line, this message
means that the identified line is not selected as the
active receiving line, and a protection switch to
make this the active receiving line will not be done.
Note: OC-3 line switching is unidirectional.
Because of this, the specified OC-3 line might still
be active (if the far end is selecting the specified
line to receive traffic), and the far end might still be
free to switch the line it is selecting to receive
traffic. The lockout will remain in effect until the
protection switch is reset or until a protection switch
inhibit request is entered. (See the
switch-line:
command.)
When associated with a LOW SPEED protection
slot, this message means that no service slot in the
whole LOW SPEED GROUP will be allowed to
switch to protection. The lockout will remain in
effect until the protection switch is reset. (See the
switch-ls:
command.)
Table B – RTRV-ALM Message Descriptions (Continued)
Description
Alarm
Level
Meaning