Bosch VOT-320 Installation And Operating Manual page 100

100 en | Appendix
Serial interface (upper 6-pin terminal block)
The pin assignment of the serial interface depends on the interface mode used (see
Section 5.33 Advanced Mode: COM1, page 68).
Pin No.
1
2
3
4
5
6
Relay and alarm (lower 6-pin terminal block)
Pin No. Contact
1
2
3
4
5
6
Connect each alarm input to a ground contact (GND) on the upper 6-pin terminal block when
connecting alarm inputs.
DOC | V4.5 | 2010.09
Contact RS-232 mode
RXD RxD (receive data)
CTS CTS (clear to send)
RTS RTS
TXD TxD (transmit data)
GND GND (ground)
GND —
Function
R1 Relay output 1
R1 Relay output 1
R2 Relay output 2
R2 Relay output 2
IN1 Input alarm 1
IN2 Input alarm 2
Installation and Operating Manual
RS-422 mode
RxD+ (receive data plus)
RxD– (receive data minus)
TxD+ (transmit data plus)
TxD– (transmit data minus)
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—
Bosch Sicherheitssysteme GmbH
VOT-320
RS-485 mode
Data+
Data–
Data+
Data–
—
—