Troubleshooting The M5209T - Nortel Meridian 1 Administration And Maintenance

Chapter 8 — Service changes and maintenance
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Troubleshooting the M5209T

Trouble conditions may be reported by the telephone user (customer report),
by way of automatic routine tests, or during installation procedures. The
following are general troubleshooting procedures to follow when problems
are found with the M5209T; for more detailed information on troubleshooting
the M5209T, refer to the M5209T Installation Guide.
Note: You should bring the following spare replacement parts to the
installation site to be tested:
• installed set model
• handset
• handset cord
• RJ45 line cord
•RS-232C interface cable
Power and cable connection problems
When no response is received from the M5209T, the cable and power
connections should first be checked before proceeding with any other
troubleshooting sequence.
Check the cable connections and power supply, by ensuring that:
1 The RJ45 line cord is properly connected to the wall jack or Terminator
Resistor (TR) box.
2 If used, the RS-232C interface cable is properly connected to both the
DTE port and the M5209 data port.
3 The handset cord is properly connected to both the handset and the
handset jack underneath the set.
4 The cable from the wall jack or TR box, to the NT1, is properly
connected.
5 The U-loop cable and the NT1 is properly connected.
6
The S-loop cable and the NT1 is properly connected
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