Valeport 803 - 7 Appendix 1 - Electrical Connections; RS232 Communications Lead; RS485 Communications Lead

Valeport Ltd © 2019
Appendix 1 - Electrical Connections
Page 17
7. Appendix 1 - Electrical Connections
7.1. RS232 Communications Lead
SubConn Cable
Analogue Signal
(Sockets in cable box)
Power In
(Banana Pins
RS232
9 way D type
Pin
Function
Pin
Colour
Pin
Pin
1
+ve Supply
Brown /
Red
Red plug
2
Analogue X
X
3
Analogue Ground
X & Y
4
0v supply
Blue /
Black
Black
Plug
5
Analogue Y
Y
6
RS232 ground
5 (link to 1,6,8,9)
7
RS232 out of unit
2
8
RS232 into unit
3
7.2. RS485 Communications Lead
SubConn Cable
Analogue Signal
(Sockets in cable box)
Power In
(Banana Pins)
RS232
9 way D type
Pin
Function
Pin
Pin
Function
Pin
1
+ve Supply
Red plug
2
Analogue X
X
3
Analogue Gnd
X & Y
4
0v supply
Black Plug
5
Analogue Y
6
RS485B
RS232 Out of unit
2
7
RS485 Gnd
RS232 Gnd
5 (link to
1,6,8,9)
8
RS485A
RS232 Into Unit
3
Note that there is no accepted standard for the orientation of RS485 A and B functions. The system will
work with the communications lead provided, but if the user is fitting a pigtail and operating the unit via
an independent RS485 system, it may be necessary to swap the RS485 A and B connections to
communicate successfully.