Bosch 430 Operations Instructions Page 23

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Video Recorder 430/451 Series Hardware setup | en 23
Bosch Security Systems Installation and Operation manual F.01U.168.054 | v2.0 | 2012.05
4.4 RS-232 COM port connections
The RS-232 COM port is used to connect a PC to the unit for service purposes or to connect a
Bosch “RS-232 to Bi-Phase Converter”. For service purposes, use a null-modem cable to
connect the serial port of the PC to the unit. The Baud rate can be selected in the menu
system.
Specifications
Connector type: 9-pole D-type male connector
Maximum input voltage: ±25V
Communicaton protocol: Output signals according EIA/TIA-232-F
Figure 4.6 RS-232 COM port connector
Table 4.1 RS232 console port socket
Signal name Pin number Description
DCD_in 1 Carrier detection signal (not used)
RX 2 RS-232 receive signal
TX 3 RS-232 transmit signal
N/C 4 No connection
System ground 5 System ground
N/C 6 No connection
RTS 7 RS-232 request to send signal
CTS 8 RS-232 clear to send signal
N/C 9 No connection
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