Installation
173
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
Powering the phone
The Aastra 5360, Aastra 5361 Aastra 5370 and Aastra 5380 system phones are nor-
mally powered via the DSI bus. However there are several reasons that require pow-
ering with a plug-in power supply:
• Long line
• 2 phones on the same bus
• 1 or more expansion key modules on the phone
• Terminal power supply of the communication server is overloaded
Only use the corresponding plug-in power supply unit with FCC connector availa-
ble as an option. It is connected either to the phone itself or, when using one or
more expansion key modules, on the last expansion key module.
See also
The power available on the DSI bus depending on the line length and the
wire diameter, and the power input of the system phones are described
in the chapter "Terminal interfaces DSI", page 132.
Connecting the phone
1. Setting the DSI bus address on the system phone’s underside:
– TSD1 = address switch on position 1
– TSD2 = address switch on position 2
2. Plug the connector into the socket-outlet.
3. If the system is configured, test the operation of the system phone.
4. Label the phone as indicated in the operating instructions.
4. 8. 1. 3 Office 25, Office 35, and Office 45/45pro
These system phones are desktop models. A wall-mounted bracket is available as
an option for Office 25 and Office 35.
Mounting the desktop model
Connect the handset cord and the phone cord to the phone as indicated in the op-
erating instructions.
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