Bosch 430 Operations Instructions Page 25

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Video Recorder 430/451 Series Hardware setup | en 25
Bosch Security Systems Installation and Operation manual F.01U.168.054 | v2.0 | 2012.05
The recommended cable cross section is AWG 28-16 (0.08-1.5 mm2).
4.7 USB connectors
A USB 1.1 connector is located at the rear panel of the unit for use with the mouse. For
convenience, the USB 2.0 port is located on the front of the unit to connect a mouse or USB
memory device.
Figure 4.9 USB mouse port
4.8 External alarm I/O connection
Alarm inputs and outputs are supplied screw down terminal blocks. The screw terminal blocks
are supplied with the unit.
Connecting the inputs
Each (alarm) input line can be switched by a contact from external devices. Wire them as
either Normally Open (N/O) or Normally Closed (N/C). Configure the alarm inputs as N/O or
N/C in the menu system. The default is N/O.
Specifications
Alarm input impedence: Internal pull-up 10 K to +5 V
Input voltage range: -2 VDC minimum to 15 VDC maximum
Input voltage threshold: low voltage 0.5 V maximum, high voltage 2 V minimum
Cable cross section: AWG 26-16 (0.13-1.5 mm2)
Connecting the alarm outputs
The four alarm output relays respond to input alarms and triggers. Configure the alarm
outputs as N/O or N/C in the menu system. The relays are active for the duration of the driving
event. Only connect resistive loads to the alarm output relays. Do not exceed 30 Vac, 40 Vdc,
500 mA (continuous), or 10 VA on an alarm output relay's contacts.
Specifications
Switching current (resistive): 500 mA maximum
Switching voltage (resistive): 30 VAC/30 VDC maximum
Cable cross section: AWG 26-16 (0.13-1.5 mm2)
Figure 4.10 Alarm input connector
Figure 4.11 Alarm output connector for the Advanced Recorder
DANGER!
Electrical voltage.
Risk of electric shock and damage to the unit.
The contacts must not be used at AC line voltages.
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