Troubleshooting

4.To return to data mode after using the escape sequence to enter command mode, type the command line

ATO ENTER

Table 4-1. Troubleshooting Guidelines

Symptom

Problem

Solution

Both LEDs are off.

Power is off.

Check that the AC outlet is working.

 

 

Check that the power supply unit is

 

 

properly connected to the 8400B Plus

 

 

Data Module and to the AC outlet.

 

 

 

The green LED is

The 8400B Plus

For the MSP-1 power supply, check

winking (750 ms on,

Data Module has

that the D8W cord is connected

250 ms off), and the

lost

between the LINE/POWER connector

red LED is inverted

communications

of the power supply and the PBX wall

winking (750 ms off,

with the PBX.

jack.

250 ms on).

 

For the KS-22911,L2 power supply,

 

 

 

 

check that the 400B2 adapter is

 

 

connected to the PBX wall jack.

 

 

Note also that the line from the PBX

 

 

must be properly administered for the

 

 

8400B Plus Data Module.

 

 

 

The red LED is

The 8400B Plus

Check that the D8W telephone cord is

winking (750 ms on,

Data Module has

securely connected between the

250 ms off), and the

lost

telephone and the PHONE jack on the

green LED is

communications

8400B Plus Data Module.

inverted winking

with the telephone.

 

(750 ms off, 250 ms

 

 

on).

 

 

 

 

 

No dial tone is heard

Incorrect option

Change the With Telephone option to

when the telephone

settings.

Yes.

handset is lifted. All

 

 

call appearance

 

 

LEDs on the

 

 

telephone are off.

 

 

 

 

 

4-2Issue 2 November 1996

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Avaya 8400B Plus manual Troubleshooting Guidelines, Symptom Problem Solution

8400B Plus specifications

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