AMT/PTD/PBX/0058/4/6/EN Installation and Maintenance Manual - Aastra 5000
Page 134 01/2011 Description des sous-ensembles
4.2.4 ADS 300X (AXL iPBX)
4.2.4.1 Description
Note : From R5.1, the new module ADS350XD (AHJ0033) replaces the old ADS300XD (refer to the
corresponding paragraph).
ADS 300X is the power supply module of the main cabinet and expansion cabinet of an
AXL iPBX. 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 ).
4.2.4.2 Functional description (Figure 3.23 )
The two power supplies include the following functional blocks (see Section 3.8.6):
• A 48V converter supplying the following voltages:
- +5 V/13 A,
--5 V/0.5A,
- +12 V/0.5A. This value does not include the fan power supply current,
- -12 V/0.25 A,
- -48 V / 1.9 A (DECT phone sets and base stations)
- 40 V (ISDN) / 0.7 A
- 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 to charge a 16 Ah battery for 10 hours providing the system with 4 hours
autonomy.
The rectifiers of several power supplies can be connected in parallel. The rectifier
can be connected to a 115 V or 230 V (+/- 10%) mains, 50 Hz or 60 Hz, without
configuration,
• two fans supplied by the converter 12V DC voltage draw air towards the rear of the
cabinet.
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