AE 260
The intermediate station can talk to either of the two lines, depending on whether the switch is placed in its left or right position. A signal coming from either line rings either of the intermediate station's bells, depending on which position the switch is in: however, the switch should be on the left or right, as a signal from one line is only heard by the intermediate station, but not by the other line.

When the switch is in the middle position, both lines can signal and talk to each other, if the intermediate station's microphone is on.

When two devices talk to each other, the third cannot listen.

Made of a frame of black lacquered iron sheet.

The telephone consists of:
Horizontal microphone RE 1024 with telephone cord RS 6003 and wall mounting cable RS 9807.
Four-magnet inductor RH 4451.
Clock with 300 ohm resistance.
Three-way switch.  Fitted to lower front of case.
Wall mounting of lacquered iron sheet, containing 1000 ohm bell.
Connection clamps, which are built-in.

On request, at an increased price, the device is supplied with a five-magnet inductor and also with a central connection in the microphone box.

Weight: 6.92 kg.