Installation and Maintenance Manual - Aastra 5000 AMT/PTD/PBX/0058/4/6/EN
Description des sous-ensembles 01/2011 Page 127
The ADS 350XD power supply module is supplied with a battery connection cable fitted
with a 4 pin connector, with a centring piece to prevent polarity inversion when connecting
the backup battery.
4.2.2 ADS 300XD (AXD iPBX)
Note : From R5.1, the new module ADS350XD (AHJ0033) replaces the old ADS300XD (refer to the
corresponding paragraph).
4.2.2.1 Description
ADS 300AXD is the power supply module of the main cabinet and expansion cabinet of
an AXD iPBX.
Depending on the Aastra XD configuration, power is supplied to the cabinets through one
or two
ADS300XDpower supply modules:
• For a simplex configuration, only one power supply module is used by the cabinet. A
ventilation system is then added instead of the second power supply module.
• For a simplex configuration with secure power supply, and for a duplex configuration,
two power supply modules are used per cabinet. The power supply modules then work
in load-sharing mode. If one power supply module becomes faulty, the other one
carries the entire load.
The mains power supply voltage is 115/230 V - 50/60 Hz - 300 W.
An optional, external 48V backup battery can be installed (see Section3.8.7.1 ).
4.2.2.2 Functional description (Figure 3.21 )
Each power supply module has the following functional units (see Section 3.8.6):
• A 48V converter supplying the following voltages:
- +5 V/15 A,
- -5 V/0.5 A,
- +12 V/0.5 A. This current includes the power supply to the four fans.
- -12 V/0.65 A,
-
-48 V / 1.9 A (DECT phone sets and base stations)
- ringer 70 V / 0.02A
a 48V rectifier supplying a 6 A current, used as follows:
- 2.1 A for the converter
- 1.9 for the DECT telephone sets and base stations
- 2A for charging a 16 Ah battery which offers the system 4 hours of autonomy.
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