Bosch PRAESENSA, Руководство по установке

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PRAESENSA Amplifier, 600W 8-channel | PRA-AD608 | en 87
Bosch Security Systems B.V. Installation manual 2019.11 | V1.00 |
Follow the connection procedure below:
1.
Crimp ferrules H onto the ends of the electrical wires of cable F to provide a solid and
reliable electrical connection.
–
Use a dedicated crimping tool.
2. Insert each wire into the appropriate slot of the connector B, observing polarity. Wiring
color convention: red for + and black for -.
–
Use a flat blade screwdriver to tighten each connection.
3. Insert the cable into the 48 V input A, cut the cable to length and mount the connector of
the powering device to the other end of the cable, again observing polarity. Insert this
connector into output A of the powering device.
4. For redundancy, repeat these steps for a second cable between output B of the powering
device to input B of the amplifier.
5. Alternatives:
–
Instead of using the A/B outputs of a PRAESENSA powering device, also two
separate power supplies can be used. The maximum current rating of the supply
connectors is 15
A; only use a 48 V power supply that is current limited to < 15 A,
also in overload condition.
– When no power supply redundancy is required, a single power supply can be used; in
that case connect the 48
V inputs A and B in parallel to make use of the amplifier's
internal dual power converters for fail safe redundancy and to avoid a supply
supervision fault event.
Notice!
The power supply connections may not be longer than 3 m
9.5.4 Lifeline
The lifeline is an optional cable connection between a PRAESENSA amplifier and a
PRAESENSA multifunction power supply. This interconnection serves multiple functions: