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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 3 | Control Equipment en | 87
5.3 Connections
5.3.1 Introduction
This section gives an overview of typical system
connections using the network controller.
• Connecting the mains (see section 5.3.2).
• Connecting the network (see section 5.3.4).
• Connecting a configuration PC (see section 5.3.5).
• Connecting audio inputs (see section 5.3.6).
• Connecting audio outputs (see section 5.3.9).
• Connecting control inputs (see section 5.3.8).
• Connecting control outputs (see section 5.3.9).
• Connecting the RS232 port (see section 5.3.10).
• Inserting a compact flash card (see section 5.3.11).
5.3.2 Connecting the mains
Proceed as follows to connect the network controller to
the mains:
1 Select the correct local mains voltage using the
voltage selector on the rear of the network controller
(see table 5.1).
2 Put the correct type of fuse in the network controller
(see table 5.1).
3 Connect the mains cord to the network controller.
4 Connect the mains cord to a locally approved mains
outlet.
5.3.3 Connecting back-up power
Connect the back-up supply to the back-up power
connector on the back of the network controller. Refer
to figure 5.4.
Use the connector supplied with the unit. The fuse for
the back-up supply is inside the unit. The back-up
supply input is protected against voltage reversal.
The back-up voltage range is 43 to 56 V. The system
voltage from the system bus is a constant 48 V. The
power supply to the units that receive power from the
system bus is not affected by a changing back-up battery
voltage.
table 5.1: Voltage selector and fuse
Selector Mains voltage
V(AC)
Fuse
115 100 - 120 T2.5A 250V
(UL 248)
230 220 - 240 T2A H 250V
(IEC 60127)
Warning
For safety reasons you must use an external
circuit breaker. Install in accordance with the
local Electrical and Building Code, e.g. for USA
and Canada in accordance with NEC/CEC and
for Germany in accordance with VDE0108-1.
To reduce the risk of electric shock do not
perform any servicing other than that contained
in the operating instructions unless you are
qualified to do so. See section 1.2 Intended
audience.
Note
When the network controller has a back-up
power supply connected, the network controller
cannot be switched off just by the mains on/off
switch (9). The battery connection must also be
removed.
Warning
Never ground the positive terminal of the
battery, as this will damage the Praesideo
equipment.
If the back-up power supply (battery) is
grounded, always connect the negative terminal
(0) first and the positive terminal (+) second.
Disconnect in reverse order: disconnect the
positive terminal first and the negative terminal
second. This avoids excessive ground loop
currents.
figure 5.4: Back-up power supply
+0
Battery 48V 4 A