Industrial USB RS485 converter (B) Bidirectional Converter Onboard original CH343G Multi-Protection Circuits
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The module is an industrial bi-directional USB to RS485 converter with the original CH343G and SP485EEN inside. It has built-in protection circuits such as an anti-shock circuit, resettable fuse, ESD protection and TVS diode, etc. It is small yet fast and reliable. With fast communication, stability, reliability and safety, it is an ideal choice for industrial control equipment and/or applications with high communication requirements.
Specifications:
- Baud rate: 300bps ~ 3Mbps
- Host port: USB
- Device port: RS485
- Chip: CH343G
- USB:
- Operating voltage: 5 V
- Connector: USB-A
- Protection: 200mA self-locking fuse, ESD protection
- Transmission distance: approximately 5m
- RS485:
- Connector: screw terminal
- Pins: A+, B-, GND
- Directional control: automatic hardware control
- Protection: lightning and surge protection 600 W, ESD protection 15KV (built-in balancing resistor 120R)
- Transmission distance: approx. 1200 m (low speed)
- Transmission mode: point-to-multipoint (up to 32 nodes, repeaters for 16 nodes or more are recommended)
- LED indicators:
- PWR: red power indicator, lights up when USB connection is detected and voltage is detected;
- TXD: red TX indicator, lights up when the USB port is sending data
- RXD: red RX indicator, lights up when the device ports are sending data back;
- Operating environment:
- Temperature: -15 ℃ ~ 70 ℃
- Humidity: 5% RH ~ 95% RH
- Operating system: Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 / XP
Original chips on board
The module features on-board original CH343G and SP485EEN chips for better stability and compatibility! Built-in overvoltage protection, resettable fuse, ESD and TVS protection circuits, etc.
- TVS protection circuit
- Resettable fuse
- CH343G circuit
- Surge protection circuit
- Resettable fuse
- ESD protection
- Resistor 120R
- Chip SP485EEN
Multi system support
Support Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc.
Transmission distance up to 1.2 km:
Status LEDs:
- PWR: red power indicator, lights up when USB connection is detected and voltage is detected
- TXD: red TX indicator, lights up when USB port is sending data
-
RXD: red RX indicator, lights up when the device ports are sending data back
Dimensions:
Kit includes
- USB - RS485 (B) x1
- USB cable x1
- Screwdriver x1
Wiki: USB_TO_RS485_(B)
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