From Zenitel Wiki
The cabling from the AlphaCom server to the intercom station is star wiring. Two twisted pairs of wires are required. The maximum distance depends on the cable diameter:
- 0.5 mm wires: 1.4 km
- 0.6 mm wires: 2.0 km
- 0.9 mm wires: 4.0 km
The station line can be connected in to ways:
- By means of an RJ45 connector at the rear side of the station, or
- By using the plugable screw connector
Connection using the RJ45 connector:
|The station cable is not a 1:1 cable!
For details on connection at the AlphaCom server side, see ASLT - AlphaCom Subscriber Line Board
Second Call Button
The station is prepared for a second external call button (DAK 2). The button can be connected between the A-wire and the lower leg on D6 on the print (highlighted in the image above).