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Port Powered RS-232 to RS-485 Converter

Port Powered RS-232 to RS-485 Converter: Electronics. The 485SD9R is a port-powered two-channel RS-232 to RS-485 converter. It converts TD and RD RS-232 lines to balanced half-duplex RS-485 signals. The unit is powered from the RS-232 data and handshake lines whether the lines are high or low. 。 RS-232 Side:Connector: DB-9 femaleSignals: Passes through pins 3 (TD) and 2 (RD)Pins 7 (RTS) and 8 (CTS) are tied togetherPins 4 (DTR), 6 (DSR), and 1 (CD) are tied together 。 RS-485 Side:Connector: DB-9 femaleSignals: 2 wire, half-duplex operation onlyAutomatic control circuit enables driver only when transmittingReceiver is disabled when transmitting to prevent echo back to RS-232 device 。 Data Rates: Up to 115.2 k baudDistance: Depending on power from port; will transmit up to 4000 feet at 19,200 baudDimensions: 2.50 x 1.30 x .80 in 。 Power Requirements: No external power is required if two RS-232 output handshake lines are available. If the handshake lines are raised and no termination is used, the power efficiency is greatly increased. 。 these Port-powered Rs-232 To 422/48 Converters Change Td And Rd Rs-232 Lines To 422/48 Signals. All Of Our Serial Port Converters Feature Automatic Send Data Control. Sdc Automatically Enables The Rs-48 Driver When Data Is Present On The Rs-232 Side. Control Of The Driver Is Automatic At Rates Up To .2 Kbps. 。 。 。

Port Powered RS-232 to RS-485 Converter

Port Powered RS-232 to RS-485 Converter
Port Powered RS-232 to RS-485 Converter
Port Powered RS-232 to RS-485 Converter
Port Powered RS-232 to RS-485 Converter

Port Powered RS-232 to RS-485 Converter

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