Motorola LM100 Operations Instructions download pdf (Page 48)

Troubleshooting 5-3

GX2-LM1000E* Installation and Operation Manual

Symptom

Status LED Indication

Flashing

Red

Red Yellow Not Lit

Poor RF

Response

Corrective Action

h g d

Verify that the GX2-LM1000E* is seated correctly

in the equipment shelf and the thumbscrew is fully

tightened.

i h e

Reseat the GX2-LM1000E* by removing it and

reinstalling it in its designated GX2-HSG* slot.

Check for proper input-signal flatness using RF TP1.

Check for a proper RF level at RF TP2. Some

amount of tilt (up to +1 dB) may be observed at

TP2. The presence of tilt within the noted level

should not be confused with a specific module

failure.

Relocate the GX2-LM1000E* to a known good

GX2-HSG* slot.

d j i g e

Contact the TRC for additional support.

Using Available Options

Table 5-2 lists the troubleshooting checks available and identifies the reported alarm condition

displayed through the optional SDU, network management system, or local access port.

To use Table 5-2, refer to the appropriate row and column in the table. Perform the necessary

checks and make any suggested adjustments to resolve the problem. If the problem persists,

note the value in the “Reported Value” column. This information is useful when seeking

additional help from the TRC.

Table 5-2

Troubleshooting — using available options

Alarm

Conditions

Status LED

Indication

Reported

Value

Corrective Action

Laser RF input

overload-major high

alarm

Red The signal level to the laser is too high. Verify that the

input signal level is within the specification and

reduce if necessary. If the level is correct, increase

the attenuation in the RF attenuator to reduce the

level at

RF TP2.

Laser RF input

level-major high

alarm

Red The signal level to the laser is too high. Verify that the

input signal level is within the specification and

reduce if necessary. If the level is correct, increase

the attenuation in the RF attenuator to reduce the

level at

RF TP2.

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Motorola LM100 Operations Instructions Page 48

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