The 1747-KE module is a interface that bridges works with DF1 protocol, RS232C devices to DH-485 networks. This give accescibilitiy between a SLC and RS232.
It allows remote programming in an SLC 500 chassis with a modem, the 1747-KE module enables remote programming and troubleshooting of any single SLC 500 processor, remote communication to a DH-485 network of SLC 500 processors, and remote data collection from the data table of any SLC 500 processor.
The interface module allows you to use the SLC 500 as a remote terminal unit accessibility.