Dedicated Micros ©2007
SD Range
Appendix A
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
RS Connectivity ( wire) (Serial , )
Pin
Description
1
RS485 + (A)
9
RS485 - (B)
RS Connectivity (Serial 1, )
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
RS Connectivity (Serial , )
Pin
Description
Desc
2
Receive Data
RX
3
Transmit Data
TX
5
Ground
GND
7
Ready to Send
RTS
8
Clear to Send
CTS