Mitel SMB Controller User Manual

87
P
OWER SUPPLY CAPACITY
CHAPTER 3 EXPANSION STAGES AND SYSTEM CAPACITY
Supply power available for terminals
The 40/48 VDC power supply required for the connected terminals is rated for the power requirements of
a typical system configuration.
The number of permissible terminals per system depends on the power requirements of the individual
terminals. To check the power requirements refer to Average power requirements of terminals
for details
of the average power requirements of the terminals.
The total power requirements of all connected terminals must not exceed the available 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 values 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 MiVoice 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.
Table 3.19:Power output of the 40/48 VDC power supply
Power output of the 40/48 VDC power supply
Available power output 24 Watt
Table 3.20:Average power requirements of terminals (Sheet 1 of 2)
Terminals Socket Output P [mW]
MiVoice 5360
1
DSI-AD2 interface 280
MiVoice 5361 DSI-AD2 interface 680
MiVoice 5370 DSI-AD2 interface 680
MiVoice 5380 DSI-AD2 interface 820
MiVoice 5370, MiVoice 5380 with
power supply unit
DSI-AD2 interface 0
Expansion key module MiVoice
M530
MiVoice 5370 110
Expansion key module MiVoice
M530
MiVoice 5380 120

Mitel SMB Controller Specifications

General

Brand	Mitel
Model	SMB Controller
Category	Controller
Language	English