Aastra 470 System Manual

Installation
103
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
4. 4 Powering the communication server
The communications server is powered as standard with 230 VAC or 115 VAC di-
rectly from the mains. The internal power supply unit (PSU2U) is rated for the
power requirements of a typical system expansion. The external auxiliary power
supply unit APS2 can be used to increase the power supply available or to increase
operating reliability (redundancy in the event of a failure on the part of one of the
two power supplies). The communication server can also be operated with the ex-
ternal auxiliary power supply unit only. To ensure that its operation is maintained
even in the event of a mains outage, an external uninterruptible power supply
(UPS) must be used.
Hazard:
Hazard due to heat generation in the event of short-circuits. The mains
power supply connection must be protected with 16 A maximum.
The overview table below lists the four different types of power supply with the
available power outputs:
Tab. 38 Power supply types for the communication server
Power supply type
Available power
output
Redundancy
operation pos-
sible
Remarks
Internal power supply unit
only
120 Watt No Suitable for a typical system configuration
Internal power supply unit +
external auxiliary power sup-
ply unit
120 Watt Yes Suitable for a typical system configuration
with power supply redundancy
External auxiliary power sup-
ply unit only
240 Watt No Minor heat generation inside the Aastra
470 housing
Internal power supply unit +
external auxiliary power sup-
ply unit
360 Watt No Suitable for maximum power require-
ments

Aastra 470 Specifications

General

Brand	Aastra
Model	470
Category	Telephone
Language	English