Справочник Пользователя для ADC Telecommunications Inc. DVLRCS800
ADCP-75-124 • Issue B • April 2002 • Section 5: Maintenance
Page 5-6
©
©
2002, ADC Telecommunications, Inc.
3
FAULT ISOLATION AND TROUBLESHOOTING
Alarm
information may be accessed and faults isolated using the information provided by the
unit
front panel LED indicators, the EMS software GUI alarm displays, or the NOC-EMS
interface.
Because the alarm information provided by the EMS GUI and the NOC-EMS
interface
is very detailed, refer to
,
,
or
indicator
(Host Unit or Remote Unit) that corresponds to the indicated alarm. Then refer to
to identify the problem, check out the possible causes, and take
corrective
action.
Table 5-4. Host Unit Major and Minor Alarms
MAJOR ALARM
LED INDICATOR
MAJOR ALARM
LED INDICATOR
Operating
Mode
(Does
not apply)
Fwd
Synth Lock
HOST
UNIT
8
Volt
HOST
UNIT
RF
Mute
(Does
not apply)
Pri
No Light
PORT
1/PORT 2
Major
Extern Output
(Does
not apply)
Pri
Fwd Mux Lock
HOST
UNIT
Companion
Lost
PORT
1/PORT 2
Pri
Rev Synth Lock
HOST
UNIT
MINOR ALARMS
LED INDICATOR
Overdrive
DRIVE
Temperature
HOST
UNIT
Unit
Mismatch
HOST
UNIT
Sec
No Light
PORT
3
Link
Alarm
(Does
not apply)
Sec
Errors
PORT
3
3.8
Volt
HOST
UNIT
Sec
Rev Synth Lock
HOST
UNIT
Pri
Laser Fail
HOST
UNIT
Underdrive
DRIVE
Pri
Errors
PORT
1/PORT 2
Minor
Extern Output
(Does
not apply)
Table 5-5. Remote Unit Major Alarms
MAJOR ALARM
LED INDICATOR
MAJOR ALARM
LED INDICATOR
Operating
Mode
(Does
not apply)
Battery
Voltage
STM
3.8
Volt
STM
Pri
Laser Fail
STM
Pri
Errors
PORT
1/PORT 2
Fwd
Synth Lock
STM
Reference
Synth Lock
STM
System
VSWR
VSWR
LPA
DC Fail
PA
LPA
Low Power
PA
LPA
VSWR
PA
Unit
Mismatch
STM
Link
Alarm
(Does
not apply)
Converter
STM
AC
Fail
AC
POWER
Pri
No Light
PORT
1/PORT 2
8
Volt
STM
Pri
Rev Synth Lock
STM
Pri
Rev Mux Lock
STM
LPA
Detect
PA
RF
Mute
(Does
not apply)
LPA
Over Power
PA
LPA
Loop Failed
PA
Companion
Lost
PORT
1/PORT 2
Major
Extern Alarm Inp (Does not apply)
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