RS-232/DF1 Port Splitters
The 1747 Port Splitters let a single RS-232/DF1 full-duplex communication port on a
controller split into two separate ports for simultaneous connection with two external
devices. The Port Splitter supports the following: SLC 500, PLC-5, MicroLogix,
ControlLogix, CompactLogix, and FlexLogix controllers.
The Port Splitter has three ports for Controller, Network and Programmer/HMI
connections. It also has a connection for a +24V external power source and status LEDs.

by STARIMAGINATION. .