ADTRAN ATLAS 550 Manual de usuario descargar pdf (Pagina 236)

Appendix E. Troubleshooting

E-2 ATLAS 550 User Manual 61200305L1-1

Misconfiguration, improper cabling

• Verify that the T1 signal is being received. If not, check that the cabling

is correct.

• Verify that the T1 is being received without errors. If not, double-check

that framing and coding are set properly.

• Verify that desired dedicated map is active.

• Verify that bandwidth is mapped to the correct V.35 port.

• Verify that the V.35 port is set to the correct data rate (terminal inter-

face).

• CheckT1performanceusingtheterminalinterface;ifthereareexcessive

errors, report fault to the Telco.

• Verify proper state of DTE signals via the terminal interface.

Misconfiguration

• Verify that the endpoint has proper call accept/reject criteria. For RBS

applications, check signaling bit status on the terminal interface for

proper operation.

• Verify that the endpoint is set up for correct signaling.

Misconfiguration, improper cabling

• Check cabling, verify that the Control/Chain In port rate matches that

of the attached terminal.

Cannot pass data from T1 interface to V.35 port

Switched calls are not working

Cannot communicate with ATLAS 550 using VT-100 connected to

the Control/Chain In Port

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ADTRAN ATLAS 550 Manual de usuario Pagina 236