Waveshare Rail-mount TTL To RS485 Galvanic isolated Converter, Multi-Isolation Protection


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Approx Restocking Date: 25 to 30 Days
SKU: 1486418
  1. Power supply 3.3V ~ 5V
  2. Protection over-voltage, reverse-proof
  3. Device Port  TTL/RS485 standard compatible


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Category: USB Interface Module

Waveshare Rail-mount TTL To RS485 Galvanic isolated Converter, 600W Lightning proof & Anti-Surge, Multi-Isolation Protection. TTL TO RS485 (B) is an industrial-grade rail-mounted electrically isolated TTL-to-RS485 serial converter.


  1. Compatible with TTL/RS422 standard, converting the TTL signal into a balanced differential RS422 signal, supporting half-duplex communication
  2. Compatible with 3.3V ~ 5V TTL signal level, with anti-reverse connection and anti-over-voltage circuit on the power supply side
  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, and low power consumption
  5. Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, and anti-electrostatic
  6. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provide over-current/over-voltage protection, improve shock resistance

Package Includes:

1 x Waveshare Rail-mount TTL To RS485 Galvanic isolated Converter, Multi-Isolation Protection.

SKU: 1486418 Category:
Device Port

TTL/RS485 standard compatible


screw terminal


600W lightning proof and surge-suppress, 15KV ESD protection

Terminal resistor

120R, enabled/disabled via a switch

Transmission Distance

About 1.2km

Transmission Mode

point-to-multipoint (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)

Shipping Weight 0.083 kg
Shipping Dimensions 14 × 10 × 5 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China