FS-485E is a passive isolation converter that can achieve isolation conversion from RS232 to RS485 and RS422. This product features a unique delay-free automatic transmit/receive conversion technology and baud rate adaptive technology, supports multi-point communication, and has built-in anti-static lightning protection circuit. It is suitable for all standard RS232 ports and outputs four-wire full-duplex RS422 interface and two-wire half-duplex RS485 interface. The maximum communication distance is 1800 meters (at 9.6Kbps) and the maximum communication rate is 115.2Kbps.
The Four Star FS-485E is a passive isolation converter designed to convert RS232 signals to RS485 or RS422 interfaces. It utilizes serial port power stealing technology, requiring no external power supply as it draws energy directly from the RS232 TXD line (with optional RTS/DTR assistance). The device features optical isolation, automatic baud rate adaptation, and protection against lightning and static electricity. This manual is written in Chinese.
| Isolation Voltage | 1000VDC (up to 3000VDC) |
|---|---|
| Max Communication Distance | 1800m at 9.6Kbps |
| Max Communication Rate | 115.2K bps |
| Operating Temperature | -20～70℃ |
| Dimensions | 85×55×25 mm |
No, it uses serial port power stealing technology and works directly from the RS232 TXD signal.
Up to 1800 meters at 9.6Kbps, or 1000 meters at speeds above 19.2Kbps.
Yes, it supports up to 64 sites in a network.