User's Manual

Troubleshooting and MaintenancePlanning and PreparationIntroduction

28 MCPS2135 Operations Manual

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.

1.1.16.2.1 Using LED Indicators

Each MCPS2135 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

LEDs

Green Amber Red

POWER Voltage OK, 26 VDC 22-24 V or 28-29V; RF

has degraded performance

<22 V or >29V; RF

shuts down

ENABLED Enabled N/A Disabled

STATUS OK Minor Alarm Major or Critical

Alarm

FAN OK N/A Fan Failure

AMM LEDs 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

1.1.26.2.2 Using the Diagnostic Port Output

Use of the Diagnostic Port is described in the release notes with the interface

software distribution.

1.1.36.2.3 Using Remote Alarm Monitoring

The MCPS2135 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.

. Note: The MCPS2135 fault management system and its associated alarms and

fault indicators operate independently of the serial interface.