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Table 4–6, When – Paradyne Jetstream CPX-1000 User Manual

Page 109

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February 2003

4-9

1000-A2-GN22-00

4. Troubleshooting

Table 4–6. PSTN Module Troubleshooting

Symptom

Probable Causes

Corrective Action

No indicators are lit on
the T1/STS-1 module.

CPX is not powered.

Put the suspect card on standby,
locked, resources removed. Then
switch it out (see

Hot Swapping Line

Cards

on page

5-11

)

Verify that the CPX is receiving –48
VDC from the plant battery.

Software error occurred
on the CP module,
preventing the T1/STS-1
module from initializing.

Power down the CPX, then reapply
power by turning its circuit breaker
switch off, then on again
(see

Figure 4–2

on page

4-12

).

T1/STS-1 module is
faulty.

Replace the module (see

Module

Troubleshooting

on page

4-6

)

FAIL

indicators are lit

and/or

RUN

indicators

are off on all T1
modules in the CPX.

Software error occurred
on the CP module,
causing the T1 modules to
initialize improperly.

1. Turn the CPX rear circuit breaker

switch off, then on again.

2. After the system initializes, verify

that all T1 module

FAIL

indicators

are off and

RUN

indicators are lit.

CP module is faulty.

Switch over CP to standby. If required,
swap out (see

Hot Swapping CP and

HSC Cards on page 5-11

)

FAIL

indicator is lit and/

or

RUN

indicator is off

on a single T1 module;
all other T1 modules
show normal

FAIL

and

RUN

indicator states.

T1 module is faulty.

Replace the module (see

Module

Troubleshooting

on page

4-6

).

Software error occurred
on the CP module,
causing the T1 module to
initialize improperly.

1. Turn the CPX rear circuit breaker

switch off, then on again.

2. After the system initializes, verify

that the T1 module

FAIL

indicator is

off and the

RUN

indicator is lit.

Tx

and/or

Rx

indicators

on the STS-1 card are
off.

Software error occurred
on the CP module,
causing the STS-1 module
to initialize improperly.

1. Turn the CPX rear circuit breaker

switch off, then on again.

2. After the system initializes, verify

that the STS-1 module

Tx

and/or

Rx

indicators are lit or flashing .

STS-1 module is faulty.

Replace the STS-1 module (see

Module Troubleshooting

on page

4-6

).