RS-485 Connections
The camera can be controlled by an external device or control system using an RS-485
duplexer. The total length of the cable for communication should not exceed 1 km (3937 ft). If
the distance between the camera and the control room is greater than 1 km (3937 ft), Bosch
recommends using a repeater (not supplied).
Notice!
The wire shield must be tied to signal at both ends, if 2-wire twisted pair is used.
Notice!
When the RS-485 signal is looped through, ensure that (only) the last device is terminated
properly. Improper RS-485 wiring or termination may result in unreliable system operation.
Use a 2-wire (shielded), half-duplex, differential, multi-drop with the following attributes:
Wire Type
2-wire Shielded Twisted Pair
Distance
1.2 Km (3937 ft)
Gauge
0.511 mm (24 AWG)
Impedance
120 Ω
Table 6.1: RS-485 Wire Specifications
The following table shows the terminal connections for the 2-pin terminal block RS-485
connections (see , page 26, item 5):
Number Signal
Color
1
TRX +
Sky
2
TRX -
White
Table 6.2: 2-pin Terminal Block Connections
Notice!
When the camera's RS-485 port is connected to a MIC-BP3 Biphase convertor, the camera's
TRX+ should be connected to the convertor's RxB, and TRX- should be connected to RxA. The
camera's baud rate should be set to 9600, and the protocol should be set to Bosch OSRD.
Also make sure that the camera ID is configured correctly. For further details on setting up
the MIC-BP3, please refer to the separate MIC-BP3 Bi-Phase Converter Card Installation and
Operation Manual.
6.2
AUTODOME 4000 Mini PTZ Dome
Connection | en
27
Bosch Security Systems, Inc.
Installation Manual
2015.08 | | Wall + Pipe Mounts
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