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Industrial Opto-Isolated RS485/RS422 Repeater/Converter

Model: RPT-485_422-4

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The RPT-485_422-4 is a rugged, industrial-grade, optically-isolated RS-485/RS-422 repeater/converter, which can be used to extend the RS-485 or RS-422 distance to up to 4000 ft (1.2km), it can also can be used to convert a two-wire RS-485 signal into a four-wire RS-422 signal, and vice versa.

This TUV strictly-certified (Cert No. SG-CE-100004; SG-FCC-100001) industrial opto-isolated RS485 RS422 converter / repeater operates within a temperature range of -40F to 185F (-40C to 85C), features 600W surge protection, 15kV static protection and opto-isolation circuitry, which effectively protects your RS-485/RS-422 devices from ground loop, noise problems, transient surges, remote lightning and spikes. The unit supports data rates up to 115.2K Baud, features baud rate auto-sensing and self-adjusting, and comes with the auto-turnaround feature for RS485 communications. Therefore, it requires no DIP switch setting, software drivers or flow control, making the unit a highly reliable and truly plug-and-play device.

A separate external power supply is included in the package, and, thanks to the professional and unique casing design, the product can be mounted directly on a wall, panel or DIN Rail, without a need of using any unsecured DIN-Rail or wall-mount adapters. This device is backed by our 30-day risk-free money-back guarantee and 5-year replacement warranty.

Baud rates: 300 to 115.2K Baud.


RS485 to RS422 Isolated Repeater/Converter data sheet

- Rack (DIN-Rail) or Wall mounting for easy installation.
- Converts 2-wire RS485 to 4-wire RS485 or 4-wire RS422 and vice versa.
- Extends RS485 or RS422's distance.
- Industrial grade with wide temperature range (-40F to 185F / -40C to 85C), surge and static protection.
- Optical isolation effectively protects RS-485/RS-422 devices from ground loops, transient surges and spikes. It also eliminates ground loop and noise problems.
- Supports serial data rates up to 115,200bps.
- Supports up to 128 nodes of RS-485/422 devices.
- RS-485/RS-422 auto-detection, no jumper setting is required.
- Plug and play (hot-pluggable, data format auto-sensing & self-adjusting).
- Data direction auto-turnaround, no flow control is required.
- Built-in surge protection, static protection and circuit protection.
- Surface Mount Technology manufactured to ISO-9001 standards.
- CE/FCC certified.
- 5-year manufacturer's warranty.

Knowledge Base: Industrial vs. Commercial-Grade

Just as there are many differences between industrial- and commercial-grade computers, the industrial- and commercial-grade converters differ in many ways, such as the level of circuit protection, temperature range and noise tolerance. Most importantly, industrial-grade converters are much more durable and the failure rates are much lower than commercial-grade converters. Industrial-grade converters are designed to interface with mission-critical equipment, such as computers, PLC, SCADA and HMI - whether in the field, server room, factory, control room, or fire command center.

  • Model: RPT-485_422-4
  • Shipping Weight: 1.25lbs
  • Manufactured by: CommFront

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