CP-132U Series User’s Manual
5-2
RS-422/485 Pinouts and Cable Wiring
RS-422 Interface
The RS-422 standard uses a balanced voltage digital interface to allow 9600 bps
communication over cables of up to 4000 feet in length. Ten receivers can be connected to
any one driver for broadcasting systems.
RS-485 Interface
The RS-485 standard is an enhanced version of the RS-422 balanced line standard. It
allows multiple drivers and receivers to work on a multidrop network. A maximum of 32
drivers and 32 receivers can be set up on a multidrop network.
The CP-132UL Series supports both 2-wire half-duplex and 4-wire full-duplex RS-485
communications. In 2-wire RS-485, Data+/- pins are used for both data transmitting and
receiving, depending on the RTS signal.
Summary of Contents for CP-132U Series
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