User's Manual

Module Front Panel LED Indicators and Connectors

68P09255A69-3

Aug 2002

1X SC4812ET Lite BTS Optimization/ATP Software Release 2.16.1.x

PRELIMINARY

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Module Front Panel LED Indicators and Connectors

Module Status Indicators

Each of the non-passive plug-in modules has a bi-color (green and red)

LED status indicator located on the module front panel. The indicator is

labeled PWR/ALM. If both colors are turned on, the indicator is yellow.

Each plug-in module, except for the fan module, has its own alarm

(fault) detection circuitry that controls the state of the PWR/ALM LED.

The fan TACH signal of each fan module is monitored by the AMR.

Based on the status of this signal the AMR controls the state of the

PWR/ALM LED on the fan module.

LED Status Combinations for All Modules (except GLI2, CSM, BBXs (2, 1X),

and MCCs (8E, 24E, 1X)

PWR/ALM LED

The following list describes the states of the module status indicator.

 Solid GREEN - module operating in a normal (fault free) condition.

 Solid RED - module is operating in a fault (alarm) condition due to

electrical hardware failure.

Note that a fault (alarm) indication may or may not be due to a complete

module failure and normal service may or may not be reduced or

interrupted.

DC/DC Converter LED Status Combinations

The PWR CNVTR has its own alarm (fault) detection circuitry that

controls the state of the PWR/ALM LED.

PWR/ALM LED

The following list describes the states of the bi-color LED.

 Solid GREEN - module operating in a normal (fault free) condition.

 Solid RED - module is operating in a fault (alarm) condition due to

electrical hardware problem.