NEC Xn120 Getting Started Manual page 20

Test the System
3 To test CO2
At a Xn120 system phone lift
the handset and
dial 805 02
4 To test CO3
At a Xn120 system phone lift
the handset and
dial 805 03
20
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 5- Connect the Exchange Lines on page 14.
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 5- Connect the Exchange Lines on page 14.
Xn120 Getting Started Guide