Installation
The connections on the underside of the system phones are identified by the symbols. The meaning of the
symbols is described in the corresponding operating instructions.
DSI terminal interface
Table 72: DSI interface on the phone
RJ45 socket Pin Signal
1 —
2 —
3 b
4 a
5 —
6 —
Note:
The total length of the cables from the communication server to the system phone must not be less
than 10 m.
Terminal selection
Two system phones can be connected to a DSI interface (DSI-AD2 only). The system can only differentiate
the two system phones by the position of the address switch on the phone. The following settings are
possible (TSD = Terminal Selection Digit):
• TSD1
• TSD2
Release 7.1
System Manual for Mitel SMB Controller 164