The Allen-Bradley 2711P-RN22C PanelView RS-232 communication module is an isolated module designed to enhance connectivity for PanelView Plus 400 and 600 terminals. Seamlessly compatible with base-configured units featuring either DC or AC power supplies and available in either grayscale or color displays, this module facilitates RS-232 communication, making it ideal for connecting to various PLCs, including SLC 500, PLC-5, MicroLogix, and CompactLogix series using the DF1 or DH-485 protocols. Easy to install directly on the base-configured unit, this module provides flexibility for future upgrades or replacements to suit evolving communication needs.