TAP-
121
363-206-295
Clearing
Trouble
:
1997
December
1,
Issue
6
of
4
Page
Is
14.
FAULT
(
lighted
LED
CP
unexpected
fail,
CP
OLIU
type/switches
(
flashing
or
etc.)
,
sig.
LOF,
LOS,
OC3
inc.
failed
one
only
on
etc.)
,
OLIU
end?
far
or
end
near
either
at
If YES
with
continue
then
,
15
Step
.
If NO
to
proceed
then
,
24
Step
.
Is
15.
ACTIVE
protection
and
service
both
on
lighted
LED
OLIUs
(
rtrv-state
)?
If YES
to
proceed
then
,
18
Step
.
If NO
with
continue
then
,
16
Step
.
Minor?
or
Critical
alarm
Is
16.
If MINOR
to
proceed
then
,
19
Step
.
If CRITICAL
with
continue
then
,
17
Step
.
17.
NOTE:
far-end
or
near-
that
are
Indications
OLIU
has
line
fiber
incoming
or
or
one
at
locked
or
inhibited
been
has
switching
protection
and
failed
the
fails,
line
protection
the
if
Also,
ends.
both
ACTIVE
both
on
LEDs
OLIU
If
end.
far
the
of
state
uncertain
the
of
because
lighted
be
will
s
the
rtrv-state
indicates
report
active-?
line
protection
the
for
(slot 2(P)
the
If
failed.
is
line
protection
the
that
are
indications
),
(slot
line
service
1 indicates
,
active-rx
system,
the
of
ends
both
at
service.
all
carrying
is
line
service
the
and
CIT
Use
rtrv-state
BOTH
at
status
switch
check
to
command
system.
of
ends
and
CIT
Use
18.
switch-line
both
switch
and
switch
reset
to
command
to
lines
far-end
and
near-
OLIU
lighted
without
pair
FAULT LED.
Replace
19.
OLIU
flashing
or
lighted
with
FAULT LED.
Reference: DLP-518 or 363-206-285, DLP-523
clear?
trouble
Did
20.
If YES then
,
PROCEDURE.
THIS
COMPLETED
HAVE
YOU
STOP.
If NO
with
continue
then
,
21
Step
.