Rockwell Automation 5720 DriveLogix System - Manual (Page 242)

Publication 20D-UM002C-EN-P - November 2003
A-4 DriveLogix System Specifications
DriveLogix Controller
Serial Cables The RS-232 port is a non-isolated serial port built-in to the front of the
controller.
To connect to the serial port, determine whether you need an optical isolator.
If you connect the controller to a modem or an ASCII device, consider
installing an isolator between the controller and modem or ASCII device. An
isolator is also recommended when connecting the controller directly to a
programming workstation.
Serial Port