Toshiba CTX IPT/DKT 用户手册

This procedure is a quick test to verify the CO Line connection and correct IPT2010-
SDC ACO operation. In normal operation the ACO indicator is dark when the ACO 
line is not in use, red when the ACO is used by another station, and green when the 
ACO is in use at this station. The ACO indictor that is lit a steady red, when the ACO 
is not in use, indicates no CO Line connection or a faulty CO Line circuit.

The IPT2010-SDC does not require a LAN connection for this test. 

1. Apply power to the IPT2010-SDC (POE or local AC adapter). The ACO button 

will LED will be red.

2. Plug in the local CO Line connection. A functional line will cause the ACO 

indicator to go dark.

3. Lift the handset then, press the ACO button. Verify that the ACO indicator lights 

green and dial tone is heard.

4. Dial a local telephone number. Verify two-way speech.

5. Place the handset in the IPT2010-SDC and verify that the ACO indicator goes 

dark.