Aastra XS - Power Supply

Product Guide - A5000 R5.4 – Aastra X series
BPS0121AENAA01 Page 18/74
5.3.4.7 Power supply
The ADS 150X is the power supply module of the main cabinet and expansion cabinet of the Aastra
XS.
The mains power supply voltage has the following characteristics:
• Rated voltage: 115V or 230V compatible with 110V/220V
• Tolerances: +/- 10%
• Frequency: 50 or 60Hz
• Power: 100 W
An optional, external 48V backup battery can be installed (see Autonomy section).
The ADS 150X includes the following functional blocks:
• A 48V converter providing the following voltages:
• +5V / 5A
• -5V / 0.1A
• +12V / 0.15A. This value does not include the fan power supply current.
• -12V / 0.55A,
• -48V / 0.45A
• 70V / 0.06A ringer
• A 48V rectifier supplying a 3A current, used as follows:
• 1.35A for the converter,
• 0.9A for the DECT telephone sets and base stations
• 0.75A to charge a 7.5Ah battery for 10 hours (battery will provide 4 hours autonomy to
the AXS).
The rectifier can be connected to 115V or 230V, 50Hz or 60Hz main,
• A fan supplied with 12 V DC by the converter draws the air into the cabinet through the left-
hand side.
Furthermore, the ADS150X generates an alarm in case of failure of the rectifier or of the converter.