Bosch Appliances DVR 480, DVR 440 operation manual 6USB connectors, RS485 port, Gnd

Digital Video Recorder 440/480 SeriesHardware setup en 25

4.6USB connectors

A USB 2.0 connector is located at the rear panel of the unit to which a mouse, for example, can be connected. For convenience, the USB 2.0 port is located on the front of the unit to connect a mouse or USB memory device. (Recording to a USB-drive is not supported.)

	Figure 4.7 USB connector (on front and on rear)
4.7	RS485 port

Connect Bosch or third-party controllable cameras to the unit for pan, tilt, and zoom control. The Bosch protocol is supported with the following baud settings:

–9600 baud

–8 data bits

–1 stop bit

–no parity

–no flow control

Figure 4.8 RS-485 connector

Signal name	Pin number	Description
TX -	1	Data transmission
TX +	2	Data transmission
GND	3	Shield

Table 4.3 RS485 pin definition

The recommended cable cross section is AWG 28-16 (0.08-1.5 mm2).

Bosch Security Systems Installation and Operation manual AM18-Q0605 v2.0 2012.04