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Configurable dual protocol transceivers enable the configuration of an interface port from RS-232 to RS-485 mode via means of a select pin, SEL. A low on SEL configures a port for RS-232, a high for RS-485 operation. One interface port provides one differential RS-485 transceiver, or two single-ended RS-232 transceivers. There are one and two port, dual protocol transceivers. In a two-port device, each port has its dedicated select pin, thus allowing the configuration of: 4 x RS-232 transceivers, 2 x RS-232 and 1 x RS-485 transceivers, and 2 x RS-485 transceivers.

PTM Published on: 2017-10-12