TDO-connector

The connection units of the phone plug-in system (TSS ) of the Telekom Austria ( TKA ) consist of the Austrian telephone socket (TDO ) and the phone plug ( TST). You have the following connections:

Compared to the six pin German system ( telecommunications terminal unit TAE) has the Austrian ten poles. Nevertheless, only four of them are connected to the normal landline phone without any additional devices forever.

It is interesting at the telephone socket that a priority order of each device is. The left connector ( △ Delta, active auxiliary device ) before the right plug ( ○ circuit, passive accessory ), and finally the middle connector ( ☏ Telephone handset, telephone ) interrupt each later in this series device as soon as they build active or passive communication. Testing for standard representation of the electrical wiring of the cable and telecommunications devices used to help in troubleshooting.

The priority:

There used to be a requirement that a reputation necessarily had to arrive. Therefore, it was ( cascaded multiple TDO ) with a socket circuit, a Tonrufmodul in the last TDO mandatory: If a phone was plugged in, so rang the can.