Installation
112
Aastra 470 as of R1.2
syd-0337/1.2 – R1.2 – 11.2011
Restrictions
The maximum length of an DSI-AD2 bus is further restricted by:
• the maximum power requirements of the connected system phones and their
supplementary equipment. In this context the SB-4+ and SB-8 DECT radio units
are also considered as system phones.
• the line resistance (depending on the line length and wire diameter)
Tab. 56
Maximal power requirements of the system phones on the DSI bus
System phone
1)
1)
Assumptions:
System phones: In hands-free mode, loudspeaker on maximum volume, all LEDs lit
Aastra 5380: Backlighting with maximum brightness
Expansion key modules: All LEDs lit
Radio units: Active call connection on all channels
Connection
Max. power input [mW]
Aastra 5360
2)
2)
Although no longer available, the phone is still supported.
DSI-AD2 interface
900
Aastra 5361
DSI-AD2 interface
Aastra 5370
DSI-AD2 interface
1220
3)
3)
The value can increase to approx. 600 mW if the power available at the DSI-AD2 bus allows it.
Aastra 5380
DSI-AD2 interface
Aastra 5370, Aastra 5380 with power supply unit
DSI-AD2 interface
0
Expansion key module Aastra M530
Aastra 5370
300
Expansion key module Aastra M530
Aastra 5380
500
Expansion key module Aastra M535
Aastra 5370, Aastra 5380
0
4)
4)
An Aastra M535 always requires a power supply unit
Dialog 4220 DSI-DASL
interface
500
Dialog 4222 DSI-DASL
interface
660
Dialog 4223 DSI-DASL
interface
680
EKP expansion key module
Dialog 4222, Dialog 4223
190
DECT radio unit without power supply unit SB-4+
DSI-AD2 interface
1700
5)
DECT radio unit without power supply unit SB-8
2 DSI-AD2 interfaces
1550
6)
DECT radio unit with power supply unit SB-4+/SB-8 1 or 2 DSI-AD2 interfaces
< 100
Office 10
DSI-AD2 interface
900
Office 25
DSI-AD2 interface
900
Office 35
DSI-AD2 interface
630
7)
Office 45
DSI-AD2 interface
Office 45pro with power supply unit
DSI-AD2 interface
< 10
Expansion key module (EKP)
Office 35
150
Expansion key module (EKP)
Office 45
210
Alpha keyboard
Office 35, Office 45
30