...4 ELECTRICAL CONNECTIONS
...4.1 Serial Connections
1 – Tx+
2 – Rx+
3 – Common (0V)
4 – Tx–
5 – Rx–
6 – No connection
A – Five-wire Connections
Output Board
4
Output Board
4
1
5
2
6
3
IC32
IC31
IC33
IC34
C – Three- and Five-wire Links
Fig. 4.2 Serial Connections
Motherboard
See Figs. 2.4 & 2.5 of the
relevant Instruction Manual
1 – Tx+/Rx+
2 – Not Connected
3 – Common (0V)
4 – Tx–/Rx–
5 – Not Connected
6 – Not Connected
B – Three-wire Connections
3-wire
4
1
5
2
6
3
5-wire