AMT/PTD/PBX/0058/4/6/EN
Installation and Maintenance Manual - Aastra 5000
Page
138 01/2011
Description des sous-ensembles
4.2.5
ADS 150X (AXS and AXS12 iPBXs)
4.2.5.1
Description
ADS 150X is the power supply module of the main cabinet and expansion cabinet of AXS
and AXS12 iPBXs. The mains power supply voltage is 115 V or 230 V, 50 Hz or 60 Hz -
150 W.
An external 48 V backup battery can be installed optionally (see section 3.8.7.1).
4.2.5.2
Functional description
ADS 150X includes the following functional blocks (see Section 3.8.6):
•
A 48V converter supplying the following voltages:
-
+5 V / 7 A
-
-5 V / 0.1 A
-
+12 V/0.15A. This value does not include the fan power supply current.
-
-12 V / 0.55 A
-
-48 V / 0.45 A
-
70 V / 0.06 A ringer
•
A 48V rectifier supplying a 2.5A current, used as follows:
-
1.6 A for the converter
-
0.45 for the DECT telephone sets and base stations
-
0.95 A for charging a 7.5 Ah battery which offers the system 4 hours of autonomy.
The rectifier can be connected to a 115 V or 230 V mains unit, 50 Hz or 60 Hz.
•
A fan supplied with 12 V DC by the converter draws air through the right-hand side
(front cabinet).
4.2.5.3
Monitoring
Two 2 A fuses located upstream from the rectifier are used to isolate the power supply
module in case of overvoltage.
The converter monitors the voltage on the battery terminals, and stops when this
voltage drops below a threshold set at 43V. This device prevents deep discharging of
the battery in the absence of mains or failure/shutdown of the rectifier.
When the fan is detected as stopped, the power supply is cut off automatically;
restarting is possible only through an On/Off sequence.
4.2.5.4
Physical description
ADS 150X (see Figure 3.14 ) is a card 90 mm wide and 410 mm long. The height of the
Summary of Contents for AXD
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