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- Order number: EX-47901
The EX-47901 RS-232 to RS-485 converter can be used for any PC, workstation or server with an RS-232 interface. It is equipped with a 9 pin female connector that you can connect directly to your RS-232 serial port. The EX-47901 converts unbalanced, full-duplex RS-232 signals into balanced half-duplex RS-485 signals. The RS-232 port is configured as a DCE port and has a DB9 socket supporting pin 2 (TXD input), pin 3 (RXD output) and pin 5 (signal ground). The following pins are bridged: pin 7 (RTS) with pin 8 (CTS) and pin 6 (DSR) with pin 1 (CD) with pin 4 (DTR).
- Signals: TxD, RxD, GND
- Loop back wiring: RTS to CTS, DTR to DSR and DCD
- 2-wire RS-485 (Data+/-, Data+/-, Half-duplex)
- ATTATM: Supports RS-485 Auto Transceiver Turn Around Feature, Supports Echo Mode for RS-485 Mode.
- Terminator: 4.5 KΩ
- Operating voltage comes from RS-232 signal, external power supply possible but not needed in most cases
|Connections:||9 pin socket/5 pin TB|