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WAVESHARE

Waveshare RS232 To RS485 Converter (B), Active Digital Isolator

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USB Interface Module for everyday users

The Waveshare RS232 To RS485 Converter (B), Active Digital Isolator by WAVESHARE is a mid-range usb interface module designed for everyday users. It features Model No. / Name: Converter and Power Supply Voltage (V): 6~36V DC.

₹1,559
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Total: ₹1,559
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 17 Aug31 Aug
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Quick Specs

Model No. / Name: Converter
Power Supply Voltage (V): 6~36V DC
Baud Rate (bps): : 300 ~ 115200bps
Device Port: RS232/RS485 standard compatible
Shipping Weight: 0.084 kg
Shipping Dimensions: 14 × 10 × 4 cm

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-1486420Category: USB Interface Module

About This Product

The Waveshare RS232 To RS485 Converter (B), Active Digital Isolator by WAVESHARE is a mid-range usb interface module designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Model No. / Name: Converter
  • Power Supply Voltage (V): 6~36V DC — works with standard household power
  • Baud Rate (bps): : 300 ~ 115200bps
  • Device Port: RS232/RS485 standard compatible — compatible with modern devices
  • Shipping Weight: 0.084 kg
  • Shipping Dimensions: 14 × 10 × 4 cm

Why Buy from Pricio?

Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

The RS232 TO RS485 (B) can be widely used for point-to-point, point-to-multipoint, long-distance cascaded communication networks between two hosts, or between the host and MCU/Peripheral. It also can be used in application scenarios that require RS232 to RS485 conversion such as Industrial Automation and IoT RS232 TO RS485 (B) is an industrial-grade rail-type active optoisolated RS232 to RS485 converter. Applications:
  1. Industrial Automation
  2. Access control
  3. Self-service banking
  4. Parking services
  5. highway toll stations
  6. Attendance system

Features:

  1. Compatible with RS232/RS485 standard, converting the RS232 signal into balanced differential RS485 signal
  2. Stable transmission at the rate of 300~115200bps
  3. Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal
  4. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
  5. Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic
  6. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provide over-current/over-voltage protection, improve shock resistance
  7. Integrates optional RS485 output terminal 120R resistor, enabled/disabled via a switch
  8. The onboard power supply screw terminal allows 6V~36V DC wide-range input
  9. Industrial rail-mount ABS case design, small in size, easy to install, and cost-effective
RS232:
  1. Connector: screw terminal
  2. Transmission distance: about 15m
  3. Transmission mode: point-to-point
RS485:
  1. Connector screw: terminal
  2. Direction control Hardware automatic control
  3. Protection 600W: lightning proof and surge-suppress, 15KV ESD protection
  4. Terminal resistor: 120R, enabled/disabled via a switch
  5. Transmission Distance: About 1.2km
  6. Transmission Mode: point-to-multipoint (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
Appearance:
  1. Case: Rail-mount ABS case
  2. Dimensions: 91.6 × 23.3 × 58.7mm

Packages Includes:

1 x Waveshare RS232 To RS485 Converter (B), Active Digital Isolator, Rail-Mount support, 600W Lightningproof & Anti-Surge

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.