User's Manual

Troubleshooting and Maintenance
MCPS4080 System Operation 27
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2001 Spectrian Corporation. All rights reserved.
cautious in handling test leads, tools, and equipment near live circuits. Never
reach into an enclosure for the purpose of servicing or adjusting live equipment.
6.2 Troubleshooting
Refer to section 5.3 for a definition of alarm types and the significance of those
alarm types.
6.2.1 Using LED Indicators
Each MCPS4080 RF Module is equipped with four LED indicators mounted on
the front panel. The system Alarm Management Module has two LED indictors
mounted on the front panel. These indicators provide useful status and diagnostic
information to operators and technicians.
Module
LED’s
Green Amber
POWER
Voltage OK, 26 VDC <22 V or >30V; RF shuts down
ENABLED
Enabled Disabled
STATUS
OK Major Alarm
FAN
OK Fan Failure
AMM LED’s Green Amber Red
DC POWER
Voltage OK, 26 VDC 22-24 V or 28-29V;
system has degraded
performance
<22 V or >29V;
system shuts down
STATUS
No Faults N/A System Fault Exists
6.2.2 Using the Diagnostic Port Output
Use of the Diagnostic Port is described in the release notes with the interface
software distribution.
6.2.3 Using Remote Alarm Monitoring
The MCPS4080 can include an optional alarm or control interface to base station
monitoring systems. These systems provide a serial interface to transmit status
codes to a remote host computer and receive a limited set of commands from the
host. For systems with such an interface, the interface is described in detail in the
specifications Appendix, A3.
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Note: The MCPS4080 fault management system and its associated alarms and
fault indicators operate independently of the serial interface.