Pin assignments for wiring connectors – Rockwell Automation 1747-L40 SLC 500 Fixed Hardware Style User Manual
Page 128

Appendix C
RS-232 Communication Interface
C–5
Pin Assignments for Wiring Connectors
Use the following pin assignments to wire the connectors of Allen–Bradley
control devices with modems and peripheral devices that support RS–232
communication. See the table below to find the wiring diagram that you
need.
To Connect this
Device
To this Device
Remarks
See this
Page
IBM AT
Modem
Hardware Handshaking Enabled
IBM AT
Peripheral DTE
Hardware Handshaking Disabled
1747-KE
Modem
Hardware Handshaking Enabled
1747-KE
Peripheral DTE
Hardware Handshaking Disabled
1746-BAS
Modem
Hardware Handshaking Enabled
1746-BAS
Peripheral DTE
Hardware Handshaking Disabled
1770-KF3
Modem
Hardware Handshaking Enabled
2760-RB
Modem
Hardware Handshaking Enabled
2760-RB
Peripheral DTE
Hardware Handshaking Disabled
1771-KGM (PLC-2)
Modem
Hardware Handshaking Enabled
1771-KGM (PLC-2)
Peripheral DTE
Hardware Handshaking Disabled
1775-KA (PLC-3)
Modem
Hardware Handshaking Enabled
1775-KA (PLC-3)
Peripheral DTE
Hardware Handshaking Disabled
PLC-5 (channel 0)
Modem
Hardware Handshaking Enabled
PLC-5 (channel 0)
Peripheral DTE
Hardware Handshaking Disabled
5130-RM (PLC-5/250)
Modem
Hardware Handshaking Enabled
5130-RM (PLC-5/250)
Peripheral DTE
Hardware Handshaking Disabled