Aastra AXD Spezifikationen Seite 128

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 502
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 127
AMT/PTD/PBX/0058/4/6/EN Installation and Maintenance Manual - Aastra 5000
Page 128 01/2011 Description des sous-ensembles
The rectifiers of several power supplies can be connected in parallel to a battery.
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.
4.2.2.3 Monitoring
Two 3.15 A fuses located upstream from the rectifier are used to isolate the power supply
module in case of overvoltage.
An F300 (6.3 A) fuse inside the power supply module (see Figure 4.3 ) protects the power
supply in case of polarity inversion when connecting the battery.
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 2 fans are detected as stopped simultaneously, the power supply is cut off
automatically; restarting is possible only through an On/Off sequence.
Figure 4.3 O
VERVIEW OF THE ADS300 XD MODULE
Indicators
Mains socket
Fuse holder
Fans
Securing screw
Internal F300 fuse
"I/O" switch
Seitenansicht 127
1 2 ... 123 124 125 126 127 128 129 130 131 132 133 ... 501 502

Kommentare zu diesen Handbüchern

Keine Kommentare