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- SKU: 26547
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USB to RS232/485 Industrial Grade Isolated Converter, Onboard Original FT232RNL Chip, Multiple Protection, Wall-mount and Rail-Mount Support
USB TO RS232/485 (B), an industrial-grade USB to RS485/422 isolated converter, adopts the original FT232RNL, an industrial rail case design, built-in protection circuits such as power isolation, ADI magnetic coupling isolation, and TVS. USB TO RS232/485 (B) is easy to operate, and can automatically transmit and receive without delay. It features fast communication speed, stability, reliability, and safety, which can be applied to various industrial control devices or applications with high communication requirements.
User Manual / Datasheet / Example Codes Etc.
Features
- Onboard Original FT232RL and SP485EEN chip. Fast communication, stable and reliable, better compatibility.
- Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal.
- Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, and low power consumption.
- Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic.
- Onboard self-recovery fuse and protection diodes, ensure the current/voltage stable outputs, provide over-current/over-voltage proof, and improve shock resistance.
- Onboard 120R terminal resistor on the RS485/RS422 ports, enabled by default, configurable by jumper.
- 3x LEDs for indicating the power and transceiver status.
- Indusrial rail-mount ABS case design, small in size, easy to install, and cost-effective.
Specifications
- Product Type : Industrial Isolated USB to RS232/RS485 converter
- Host Interface : USB
- Device Interface : RS232/RS485
USB Interface
- Operating Level : 5V
- Interface : USB-B
- Protection : 200mA self-recovery fuse, isolated output
- Transmission Distance : About 5m
Isolated RS232 interface
- Form Factor : Wiring Terminal
- Transmission Distance : About 15m
- Transmission Mode : Point to point
- Baud rate : 300 bps ~ 921600bps
Isolated RS485 interface
- Form factor : Screw terminal
- Direction Control : Hardware automatic control
- Protection : Provide 600W lightningproof, anti-surge and 15KV ESD protection (onboard 120R balancing resistor
- Transmission Distance : About 1200m (at low rate)
- Transmission Mode : Point to multi-point (up to 32 nodes, add a relay for up to 16 nodes)
- Baud Rate : 300 bps ~ 921600bps
Indicator
- PWR : Power indicator, connect to USB, the red LED is on when the voltage is detected
- TXD : Tx indicator, green LED is on when data is sent from the USB port
- RXD : Rx indicator, blue LED is on when data is sent from the device port
Usage environment
- Temperature range : -15℃ ~ 70℃
- Humidity range : 5% ~ 95%RH
- OS : Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7
Appearance
- Case : Rail-mount ABS eco-friendly case, for 35mm DIN rail
- Dimensions : 81.9 × 54.0 × 32.0mm
Package Includes
- USB TO RS232/485 (B) x1
- USB-A male to USB-B male cable ~1.2m x1
- Screwdriver x1


Interface Introduction



Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)









