NEC XN120 Getting Started Manual page 22

Test the System
Test the Exchange Lines
Test each line in turn, only test the lines that you have connected.
Use an XN120 system phone that you have previously confirmed is working correctly to test the exchange
lines.
1 To test CO1
At an XN120 system phone lift
the handset and
dial 805 01
2 Check the connections.
3 To test CO2
At an XN120 system phone lift
the handset and
dial 805 02
4 To test CO3
At an XN120 system phone lift
the handset and
dial 805 03
22
If you hear exchange dialing tone the line is working correctly.
If you do not hear exchange dialing tone move to step 2.
Check the connections from the exchange line to the XN120, ensure
both wires are connected to CO1 as shown in Error! Not a valid
result for table. on page 16.
If you hear exchange dialing tone the line is working correctly.
If you do not hear exchange dialing tone check the connections from
the exchange line to the XN120, ensure both wires are connected to
CO2 as shown in Error! Not a valid result for table. on page 16.
If you hear exchange dialing tone the line is working correctly.
If you do not hear exchange dialing tone check the connections from
the exchange line to the XN120, ensure both wires are connected to
CO3 as shown in Error! Not a valid result for table. on page 16.
XN120 Getting Started Guide