This is an industrial USB to RS485 bidirectional converter with original CH343G
and SP485EEN inside. It features embedded protection circuits such as lightningproof,
resettable fuse, ESD protection, and TVS diode, etc. It's pretty small in size.
The USB TO RS485 is very easy to use, allows automatic transceiving.
Due to its fast communication, stability, reliability, and safety,
it is an ideal choice for industrial control equipments
and/or applications with high communication requirement.
USB to RS485 communication
Onboard TVS (Transient Voltage Suppressor), effectively
suppress surge voltage and transient spike voltage in the circuit,
lightningproof & anti-electrostatic
Onboard self-recovery fuse and protection diodes,
ensures the current/voltage stable outputs,
provides over-current/over-voltage proof, improves shock resistance
3 LEDs for indicating the power and transceiver status
Product type: industrial converter
Host port: USB
Device port: RS485
Connector: screw terminal
Pins: A+, B-, GND
Direction control: hardware automatic control
Protection: 600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor)
Transmission distance: about 1200m (low rate)
Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
PWR: red power indicator, light up when there is USB connection and voltage is detected
TXD: red TX indicator, light up when the USB port sends data
RXD: red RX indicator, light up when the device ports send data back
Temperature: -15℃ ~ 70℃
Humidity: 5%RH ~ 95%RH
Operating system: Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 / XP
1200m Long distance transmission
It can convert USB signals into balanced differential RS485 signals, with stable transmission rate, reliable speed of 300bps ~ 3Mbps, transmission distance of RS485 of about 1200 meters and USB of about 5 meters.
and other systems
Working status indicator
On-board 3 LED indicators make it easy to check the status of power supply and signal transmission and reception.