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Praesideo 4.3
Clause / Requirement
4.3 Power supply
Power supply equipment, external or included in the
VACIE, shall comply with the requirements of EN 54-4.
NOTE - The power supply may be shared with that of
the fire detection and fire alarm system.
Bosch Security Systems B.V.
Compliance
Praesideo is compliant.
The network controller and all amplifiers are supplied with a mains
supply and DC backup supply (48V) input. Switch over between
the both takes place automatically, without any interruption or
status change other than the power supply related indications.
The installer must use battery charging equipment in accordance
with EN54-4. Battery chargers must be installed in a separate
cabinet, not shared with the Praesideo system, unless one of the
following chargers is used, that are approved for use with
Praesideo:
•
The PRS-48CH12 and PRS-48CHxx-DE series of 48V
battery chargers have been certified in combination with
Praesideo equipment for mounting in the same 19"-
cabinet, provided that the batteries are placed on the
ground plane of the cabinet, free from the walls.
Although not required by and therefore excluded from
EN54-4/16 certification, a battery mid-point monitor,
model SD08 from Alpha Technologies Ltd., may be used
with the PRS-48CH12 battery charger and mounted in
the Praesideo cabinet, in accordance with the German
standard VDE 0833-4.
•
In addition, the Praesideo equipment can be combined
with the Merawex power supply system ZDSO400E-
AK3 in its rack. This system may consist of the main
power supply ZDSO-400-E, additional power supply
ZDSOR-400-E, additional power supply ZDSOT-400-E,
distribution panel PD-2U-x, battery circuit resistance
measurer RMB-1.
The installer must ensure that the output voltages of the battery
charger or other power supply equipment do not exceed the
specifications of the mains and battery inputs of the connected
Praesideo equipment.
Loading the 48V auxiliary output of the PRS-48CH12 and PRS-
48CHxx-DE battery chargers will reduce the maximum available
charging current for the 48V batteries and this reduction must be
taken into account when determining the maximum battery
capacity for an EN54-16 certified Praesideo system.
The content of the EN54-16 certificate is subject to change.
The most recent version of this certificate can be found on
http://www.boschsecurity.com.
The power supply may be shared with that of a fire detection
system, but when operated with a battery a new capacity
calculation is required.
Manuel d'installation et d'utilisation
Signature
IUI-PRAESIDEO_4.3 | V1.0 | 2015.02
fr | 48
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