Allen-Bradley SLC 500 - 1775-KA to a SLC 5;03, SLC 5;04, or SLC 5;05 Processor, IBM AT, 1770-KF3, 1773-KA, 5130-RM, or PLC-5 (Hardware Handshaking Disabled; Channel 0) to a Modem (Hardware Handshaking Enabled); PLC-5 (Channel 0) to a Modem Hardware Handshaking Enabled)

B–17RS-232 Communication Interface
Publication 1747-6.2
1775-KA to a SLC 5/03, SLC 5/04, or SLC 5/05 Processor , IBM AT,
1770-KF3, 1773-KA, 5130-RM, or PLC-5 (Hardware Handshaking
Disabled)
➀
DCD 1
3
2
4
5
6
7
8
8
2
3
20
7
6
4
5
TXD
RXD
DTR
COM
DSR
RTS
CTS
GND 1
8
2
20
7
6
4
5
22
3
DCD
NC
RXD
TXD
DTR
COM
DSR
RTS
CTS
25 Pin
1775–KA
9 Pin 25 Pin
(DTE)
(DTE)
Peripheral
➁
➁
➁
➁
Device
➂
➀
You can also use cable 1747-CP3.
➁
Jumpers are only needed if you cannot disable the hardware handshaking on the port.
➂
Connect to the shield of the cable.
PLC-5 (Channel 0) to a Modem (Hardware Handshaking Enabled)
DCD 1
2
3
4
5
6
7
8
8
3
2
20
7
6
4
5
RXD
TXD
DTR
COM
DSR
RTS
CTS
GND 1
8
2
20
7
6
4
5
22
3
DCD
NC
RXD
TXD
DTR
COM
DSR
RTS
CTS
25 Pin PLC–5 (ch. 0)
9 Pin 25 Pin
➀
(DTE) (DCE)
Modem
9 22RI
➀
Connect to the shield of the cable.
AB PLCs