Lucent Technologies DDM-2000 OC-3, Руководство пользователя и обслуживания

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RTRV-ALM 31 of 11 Page RTRV-ALM
Description Report Description Report
(Contd) Descriptions RTRV-ALM 11-3. Table
Meaning Description
active mode holdover
mode. synchronization holdover in is system The
causes: Likely
holdover to switched manually was system The a.
the (with mode
switch-sync
a in or, command,
point) control TBOS a with system, office central
reset been not has switch the and
holdover to switched automatically system The b.
as references, timing the of failure to due mode
follows:
cleared. not have failures reference The 1.
nonrevertive for provisioned is system The 2.
switching. mode synchronization
for provisioned is system The 3.
External
are references timing external no and timing
available.
line-timed for provisioned is system The 4.
circuit OLIU or line optical the and operation
an indicating message a or failed, has pack
on received been has problem clock upstream
(See line. optical the of bits message sync the
the
rtrv-sync
command.)
message sync for provisioned is system The 5.
which from system upstream the but signaling,
sync for provisioned been not has line-times it
be can condition The signaling. message
the systems both provisioning by cleared
the (See same.
set-sync
and
rtrv-sync
commands.)
of one least at repairing by cleared be can condition The
resetting and failed) are both (if references timing the
the with switch protection mode synchronization
command
switch-sync:s=mode,pri=reset
a In .
also can mode synchronization the system, office central
point. control TBOS a with reset be
type CP illegal
been has type pack circuit unknown or illegal An
be should pack circuit The shelf. the into inserted
shelf. the from removed
OC-3 DDM-2000
2000 February 2 Issue
11-543