3500/92 [caption id="attachment_1844" align="aligncenter" width="600"] 350092-136180-01[/caption] The 3500/92 Communication gateway module provides extensive communication capabilities for all monitored racks with process control and integrated value and status using Ethernet TCP/IP and serial (RS232/RS422/RS485) communication capabilities. It also allows Ethernet communication with 3500 rack configuration software and data acquisition software. The supported protocols include: L