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MarathonSeriesFA/FR 37
8.5RS232/485InterfaceConverter
TheRS232/485interfaceconvertershavebuilt‐insmartswitchingandhavebeendesignedtobe fast,
allowing for use in either 2‐wire or 4‐wire mode, in either multi‐drop or stand‐alone mode. The
RS232/485interfaceconverterisrequiredformulti‐dropcommunications.
Do not use other commercially available converters, they do not have the necessary
features!
Order number Model
XXX485CVT
25 pin to terminal strip interface converter, recommended for direct
wiring between a serial interface and the terminal block
XXX485CVT1 XXX485CVT with 110 VAC power adapter
XXX485CVT2 XXX485CVT with 230 VAC power adapter
XXX485CV 25 pin to 25 pin interface converter
XXX485CV1 XXX485CV with 110 VAC power adapter
XXX485CV2 XXX485CV with 230 VAC power adapter
Table4:AvailableRS232/485InterfaceConverters
For more information regarding the wiring of the RS232/485 interface converter, see section
5.6
RS232/485InterfaceConverteronpage21andsection5.7ConnectingtoaPConpage21.