波士電子：RS-232/RS-485正宗專業(yè)廠家
BOSI electronics：RS-232/RS-485 expert English 中文
Click the MODEL name ,the datasheet will be opened (.pdf)
| Model | Function | Feature | Price |
|---|---|---|---|
| EX232 | Extende RS-232 distance to 500 meters directly | +5V power supply！ | $100 |
| ETH232GL1 | ETHENET to RS-232/485 | Optical isolated | $180 |
| 4232A | one RS-232 to four dependent RS-232 | No power supply！ | $125 |
| 4485A | one RS-232 to four dependent RS-485 | No power supply！ | $125 |
| 8232A | one RS-232 to eight dependent RS-232 | No power supply！ | $250 |
| 16232A | one RS-232 to sixteen dependent RS-232 | No power supply！ | $375 |
| USB485 | USB to RS-485/RS-422 converter | No power supply! | $85 |
| USB232 | USB to RS-232 converter | No power supply! | $50 |
| S812[A] | 8-channel 12-bit A/D RS-232 data acquisition system | No power supply！ | $120 |