GE 90-30 PLC Series Installation And Hardware Manual page 370

C
Pin Assignments for the Isolated Repeater/Converter
Table C-1. Isolated Repeater/Converter Pin Assignments
J1 RS-422 Port (25-pin female connector)
Pin Signal
NC
2 NC
3 NC
4 NC
5 NC
6 NC
7 0V Ground Connection
8 CTS(B') Clear to Send (Optional Termination)
9 CTS(A') Clear to Send (Optional Termination)
0 CTS(B') Clear to Send
CTS(A') Clear to Send
2 RTS(B) Request to Send
3 RTS(A) Request to Send
4 RD(B') Receive Data
5 RD(A') Receive Data
6 SD(A) Send Data
7 SD(B) Send Data
8 NC
9 NC
20 NC
2 NC
22 RD(B') Receive Data
23 RD(A') Receive Data
24 SD(A) Send Data
NC=No Connection
SD (Send Data) and RD (Receive Data) are the same as TXD and RXD (used in the Series Six PLC).
(A) and (B) are the same as – and + A and B denote outputs, and A' and B' denote inputs.
C-4 Series 90-30 PLC Installation and Hardware Manual – August 2002
Description
The signal ground connections (pin 7 on each connector) must be made
between the Isolated Repeater/Converter and the PLC for J1, and the
Isolated Repeater/Converter and the host computer for J2.
Pin 7 of the J1 port is connected to the metal shell of the J1 connector. Pin 7
of the J2 port is connected to the metal shell of the J2 connector. These two
signal ground connections are isolated from each other and from the power
system ground (green wire on the terminal block). To maintain proper
isolation, these signal grounds cannot be tied together.
J2 RS-422/RS-232 Port (25-pin female connector)
Pin Signal
NC
2 SD Send Data (RS-232)
3 RD Receive Data (RS-232)
4 RTS Request to Send (RS-232)
5 CTS Clear to Send (RS-232)
6 NC
7 0V Ground Connection
8 CTS(B') Clear to Send Optional Termination)
9 CTS(A') Clear to Send (Optional Termination)
0 RTS(B) Request to Send
RTS(A) Request to Send
2 CTS(B') Clear to Send
3 CTS(A') Clear to Send
4 SD(B) Send Data
5 SD(A) Send Data
6 RD(A') Receive Data
7 RD(B') Receive Data
8 RD(A') Receive Data (Optional Termination)
9 RD(B') Receive Data (Optional Termination)
20 NC
2 NC
22 SD(B) Send Data (Optional Termination)
23 SD(A) Send Data (Optional Termination)
24 NC
Caution
Description
GFK-0356Q