219
Installation Guide
Appendix B - Pinouts
Alarm & Relay Pin Outs
Using Serial Ports
It is possible to connect a variety of telemetry cameras to the unit, using the following table as a guide to
the serial port connections.
1
5
6
9
RS485 Connectivity (2 wire) (Serial 3, 4)
Pin
Description
1
RS485 + (A)
9
RS485 - (B)
5
Shield (GND)
RS232 Connectivity (Serial 1, 2)
Pin
Description
Desc
1
Data Carrier Detect
DCD
2
Receive Data
RX
3
Transmit Data
TX
4
Data Terminal Ready
DTR
5
Ground
GND
6
Data Set Ready
DSR
7
Ready to Send
RTS
8
Clear to Send
CTS
9
Ring Indicate
RI
RS232 Connectivity (Serial 3, 4)
Pin
Description
Desc
2
Receive Data
RX
3
Transmit Data
TX
5
Ground
GND
7
Ready to Send
RTS
8
Clear to Send
CTS
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