Expansion Stages and System Capacity
77
Aastra 415/430 as of R3.2
syd-0344/1.6 – R3.2 – 09.2014
The number of permissible terminals per system depends on the power require-
ments of the individual terminals. To check the power requirements refer to
Tab. 33
for details of the average power requirements of the terminals.
The total power requirements of all connected terminals must not exceed the avail-
able power output of the power supply.
Note
The actually required power supply depends strongly on the call traffic,
the wire diameter and the line length to the connected terminals. The val-
ues in the following table are average values under the following
assumption:
– Phones traffic volume: Call Connection 38%, Ringing 2%
– SB-4+ radio unit: Active call connection on 2 channels
– SB-8 radio unit: Active call connection on 4 channels
– Background lighting Aastra 5380: 30% active
– LEDs on terminals and expansion key modules: 20% active.
– Wire diameter: 0.5 mm
– Line length: 200 m
The table below shows the average power requirements of the terminals for a line
length of approx. 200 m and a wire diameter of 0.5 mm.
Tab. 33
Average power requirements of terminals
Terminals
Socket
Output P [mW]
Aastra 5360
1)
DSI-AD2 interface
280
Aastra 5361
DSI-AD2 interface
680
Aastra 5370
DSI-AD2 interface
680
Aastra 5380
DSI-AD2 interface
820
Aastra 5370, Aastra 5380 with power supply
unit
DSI-AD2 interface
0
Expansion key module Aastra M530
Aastra 5370
110
Expansion key module Aastra M530
Aastra 5380
120
Expansion key module Aastra M535
Aastra 5370, Aastra 5380
0
2)
Radio unit without power supply unitSB-4+
DSI-AD2 interface
1500
3)
Radio unit without power supply unitSB-8
2 DSI-AD2 interfaces
1350
4)
Radio unit with power supply unit SB-4+/SB-8
1 or 2 DSI-AD2 interfaces
< 100
Office 10
1)
DSI-AD2 interface
340
Office 25
1)
DSI-AD2 interface
380
Office 35
1)
DSI-AD2 interface
280
5)
Office 45/45pro
1)
DSI-AD2 interface
660
5)
Office 45pro power supply unit
1)
DSI-AD2 interface
< 10
Expansion key module (EKP)
1)
Office 35, Office 45
80
