GE Series 90-30 PLC

E-2 Series 90-30 PLC Installation and Hardware Manual – August 2002 GFK-0356Q
E
Connectors
The Isolator provides two connectors, one 15 pin male D-type (PL1) and one
15 pin female D-type (PL2).
RS-485 Connectors
Pin Pin Name Pin Type Description
PL1 1 SHLD - Chassis Ground
2 NC -
3 NC -
4 NC -
5 5V - +5V power
6 CTS (A') In Clear to send -
7 0V - Signal Ground
8 RTS (B) Out Request to send +
9 NC -
10 SD (A) Out Send data -
11 SD (B) Out Send data +
12 RD (A') In Read data -
13 RD (B') In Read data +
14 CTS (B') In Clear to send +
15 RTS (A) Out Request to send -
Pin Pin Name Pin Type Description
PL2 1 NC -
2 NC -
3 NC -
4 NC -
5 5V - +5V power
6 RTS (A) Out Request to send -
7 0V - Signal Ground
8 CTS (B') In Clear to send +
9 RT - Terminating Resistor*
10 RD (A') In Read data -
11 RD (B') In Read data +
12 SD (A) Out Send data -
13 SD (B) Out Send data +
14 RTS (B) Out Request to send +
15 CTS (A') In Clear to send -
* Use the terminating resistor if the Port Isolator is used in port-to-port mode or at the end of a multi-drop
configuration. To terminate the RD balanced line, place a jumper wire from pin 9 to pin 10.
* A denotes – and B denotes +. A and B denote outputs and A' and B' denote inputs.