Installing, Powering And Connecting Terminals; Digital System Phones; General Information - Aastra 470 System Manual

Installation
4. 8

Installing, powering and connecting terminals

4. 8. 1

Digital system phones

4. 8. 1. 1

General information

Accesses
The connections on the underside of the system phones are identified by the sym-
bols. The meaning of the symbols is described in the corresponding operating in-
structions.
DSI terminal interface
Tab. 75 DSI interface on the phone
RJ45 socket
1
2
3
4
6 5
Note:
The total length of the cables from the communication server to the sys-
tem 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
Note:
In the following cases Not Configured is displayed along with the node
number, the slot number and the port number. In this state the system
phone is not ready for operation:
– A terminal has been created at the connected port, but the address
selection switch is incorrectly set.
– No terminal has yet been created at the connected port.
136
Pin Signal
1 —
2 —
3 b
4 a
5 —
6 —
Aastra 470 as of R1.2
syd-0337/1.2 – R1.2 – 11.2011