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Black Box Universal RS-232 to RS-422 485 Bidirectional Converter

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Item#: 14042640 // MFG Part#: IC820A // By: Black Box
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Convert async RS232 to RS422/485 at speeds up to 115.2 kbps with distances up to 4000 ft. over CATx cables. Enables you to select RS-485 2-wire half-duplex or RS-485 4-wire full-duplex operation.Selectable RS-422 operation with transmit and receive always enabled.Automatic RS-485 driver control so it works without any special programming for handshaking signals. Also enables transmitter from RS-232 TD signal and receiver when not transmitting.Built-in bridging switches for 2- or 4-wire operation with no external jumpers to set. Set operating mode with four switches.Converts using either port power or power from an external 120-VAC/12-VDC power supply (sold separately).No external power is required if two RS-232 output handshake lines are available.
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