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Front Panel
POWER/FAIL
OC-3MX
1181031L3
OWER
STATUS
STATUS
O TICS
TEST
OPTICS
CLOCK
TEST
CLOCK
LOCKOUT
ON LINE
LOCKOUT
A S
TEST/
ENABLE
ON LINE
Switch
APS
TEST/ENABLE
6
Table 3. Front Panel Indicators
Indicator
FLASHING YELLOW
FLASHING YELLOW
FLASHING YELLOW
Table 4. Front Panel Switches
Description
When depressed simultaneously with TEST/ENABLE, forces the OC-3 MUX on-line (receive
side only). Pressing these switches together also toggles the LOCKOUT LED state ON and OFF.
When activated alone, tests all OC-3 MUX LEDs (multi color LEDs appear YELLOW).
When activated with the APS switch, refer to APS description above.
Color
OFF
No power is present on the OC-3 MUX.
GREEN
OC-3 MUX is In Service and operating normally.
FLASHING
OC-3 MUX is preparing for software upgrade.
(RED/GREEN)
YELLOW
OC-3 MUX is Out of Service, Maintenance.
OC-3 MUX is Out of Service, Unassigned.
RED
OC-3 MUX has an Equipment failure.
GREEN
No alarm condition detected.
YELLOW
Remote alarm condition detected.
RED
Local and/or remote alarm condition detected.
OFF
No alarm condition detected.
RED
Optical interface (facility) failure (LOL, LOS, etc.)
OFF
OC-3 MUX is not in Test mode. No loopbacks are
YELLOW
present. Loopbacks are active at OC-3 and/or DS3
level and/or DS1 level.
Software dowload in progress.
OFF
No clock alarm condition detected.
YELLOW
In Holdover mode or PRI or SEC failure. External
Clock.
Clock Out of Range or Out of Lock.
OFF
APS is enabled.
YELLOW
APS is Locked out due to INHIBIT.
(Traffic will not switch away from the OC-3 MUX
on detection of fault conditions.)
NOTE: To turn OFF the LED, and to disable
lockout, simultaneously and momentarily activate
the APS and the ENABLE switches.
OFF
The DS3s from this OC-3 MUX are not being
dropped to the Quad BNC module on the
backplane. The OC-3 MUX is not the controller of
clock source copy switching. Some or all access
modules may be receiving DS1 traffic from this
OC-3 MUX.
GREEN
Some or all access modules are receiving DS1
traffic from the OC-3 MUX and/or one or both
DS3s are being dropped from this OC-3 MUX and/
or this OC-3 MUX is the controller of clock source
copy switching.
Description
61181031L3-5A
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