4. Troubleshooting

1000-A2-GN22-00

 

 

Table 4–2. Telco Status Indicators (Continued)

Symptom

Possible Cause

Further Isolation of Alarm

 

 

 

MAJOR

PSTN

Remote failure indication - line

indicator on

 

Bit Error Ratio - signal fail or degraded

(continued)

 

Remove failure indication - STS path\

 

 

Alarm indication signal - VT

 

 

Loss of pointer or unequipped VT

 

 

Payload label mismatch - VT

 

 

 

 

T1 Ports

PSTN Alarm indication signal - DS1

 

 

PSTN Remote Alarm indication - DS1

 

 

 

MINOR

IAD

Provisioned compression scheme(s) not supported

indicator on

 

 

 

 

 

 

Table 4–3lists the modules and indicator states for normal

 

operating conditions.

Table 4–3. Normal Activity Indicator Usage

Module

ATM CP/HSC EC ECAC

MP

T1

STS-1

Normal Usage

Active ATM modules have ACTive lit; standby module lights not lit Active CP/HSC module have ACTive lit; standby module lights not lit All unlocked EC modules are lit

All unlocked ECAC modules are lit

ACTive always lit

All unlocked T1 modules are lit

Active STS-1 modules have ACTive lit; standby module lights not lit

Module Troubleshooting

Before performing a module fault isolation:

1.Verify that the board and each component is securely seated.

Warning

Take care not to damage or bend the connector pins, and avoid touching areas of integrated circuits.

4-6

February 2003

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Paradyne CPX-1000 Module Troubleshooting, Remote failure indication line, Provisioned compression schemes not supported