Features
1)Onboard original CH343G and SP485EEN chips, built-in lightningproof tube, resettable fuse, ESD and TVS protection circuits, etc.
3) Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, light-ningproof & anti-electrostatic
4) Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
5) Transmission distance up to 1.2km:
The USB signal can be converted into a balanced differential RS485 signal and the transmission rate is stable. The reliable speed is 300bps ~ 3Mbps, the transmission distance is about 1.2km for RS485, and about 5 meters for USB.
Specifications
Host port--USB
Device port -- RS485
Operating system-- Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7
1)USB
Operating voltage--5V
Connector--USB-A
Protection --200mA self-recovery fuse, ESD protection
Transmission distance --About 5m
2)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 1.2km(low rate)
Transmission mode--Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
3)LED indicators
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
4) Operating environment
Temperature :-15℃ ~ 70℃
Humidity--5%RH ~ 95%RH
Online Tutorial/How to use Document: n9.cl/pmi4r
Package Content
USB TO RS485 (B) x1
USB-A male to female cable x1
Screwdriver x1