Expansion Stages and System Capacity
78
Aastra 415/430 as of R3.2
syd-0344/1.6 – R3.2 – 09.2014
Tip
With the planning application Aastra Plan the power supply available for
terminals is checked automatically.
Overload shutdown
If the rated power is exceeded the power supply is disconnected. It is restored after
approx. 20 s.
If an overload occurs, reduce the required supply power (e.g. by powering DECT ra-
dio units and/or system phones locally).
3. 4. 5. 2
Power supply per terminal interface
The power supply per terminal interface is determined by the interface type. The
interface load depends on the following variables:
• Terminals used incl. auxiliary devices
• Bus configuration
• Line length and conductor cross-section
For information on the calculations refer to
"Terminal interfaces", page 114
.
Alphanumerical keyboard (AKB)
1)
Office 35, Office 45
20
ISDN terminal
BRI-S interface
approx. 500
6)
Analogue terminals
FXS interface
approx. 500
1)
Although no longer available, the phone is still supported.
2)
An Aastra M535 always requires a power supply unit
3)
The value applies to radio units with hardware version "-2". The value for hardware version "-1" is 300 mW
lower.
4)
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.
5)
The value applies to phones with hardware version "-2". The value for phones with hardware version "-1" is
60 mW lower.
6)
The value depends greatly on the terminal type.
Terminals
Socket
Output P [mW]
