Installation
116
Aastra 415/430 as of R3.2
syd-0344/1.6 – R3.2 – 09.2014
Tab. 52
Maximum power requirements of the system phones on the DSI bus
The two diagrams below show the power available on the DSI-AD2 bus in relation
to the line length and the wire diameter. The table can then be used to determine
the number and type of system phones that can be connected to the DSI-AD2 bus
under the given conditions. The power available can be calculated by measuring
the loop resistance where the wire diameter is known.
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
Socket
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
1220
3)
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
1340
3)
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
DECT radio unit without power supply unit SB-4+
DSI-AD2 interface
1700
5)
5)
The value applies to radio units with hardware version "-2". The value for hardware version "-1" is 300 mW
lower.
DECT radio unit without power supply unit SB-8
2 DSI-AD2 interfaces
1550
6)
6)
The value applies to each interface and to radio units with hardware version "-2". The value per interface for
radio units with hardware version "-1" is 150 mW lower.
DECT radio unit with power supply unit SB-4+/SB-8 1 or 2 DSI-AD2 interfaces
< 100
Office 10
2)
DSI-AD2 interface
900
Office 25
2)
DSI-AD2 interface
900
Office 35
2)
DSI-AD2 interface
630
7)
7)
The value applies to phones with hardware version "-2". The value for phones with hardware version "-1" is
60 mW lower.
Office 45
2)
DSI-AD2 interface
1110
7)
Office 45pro power supply unit
2)
DSI-AD2 interface
< 10
Expansion key module (EKP)
2)
Office 35
150
Expansion key module (EKP)
2)
Office 45
210
Alpha keyboard
2)
Office 35, Office 45
30
