RS232, RS485, RS422, Serial Current Loop & SSI		Brochure	Manual
RM4-RS	RS232, RS485, RS422 or Serial Current Loop input
ADDENDUM	Addendum for arithmetic & wind applications
RM4-SSI	Synchronous Serial Interface (SSI) input
ADDENDUM	ADDENDUM Manual for RM4 Options (all RM4 Models)

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The RM4-RS is a DIN rail mounted instrument with a serial input. It accepts RS232, RS485, RS422 or serial current loop data. The RM4-SSI accepts data over a Synchronous Serial Interface (SSI). This allows transmission of data up to 1200 metres over two twisted pairs of conductors. The RM4-SSI is ideal as a remote indicator/monitor.