ATC-863 / ATC-871 / ATC-873 / ATC-875 RF Data Converter Modules

The ATC-863 / ATC-871 / ATC-873 / ATC-875 RF Data Converter Series are industrial wireless transmission modules designed to convert RS-232/RS-485/TTL serial data into long-range RF communication. With ranges from 300 m to 2 km (line-of-sight) and a standard 9600 bps baud rate, these modules are ideal for RTU, SCADA, PLC, and distributed automation systems requiring reliable wireless serial links.

They support half-duplex communication and point-to-point, point-to-multipoint, and multipoint-to-point networking. The RF channel itself is transparent to the user, simplifying upgrades from wired RS-232/485/TTL communication to wireless solutions.

Key Features (Bulleted)

• RF serial data converter series: ATC-863 / ATC-871 / ATC-873 / ATC-875

• Supports RS-232, RS-485, and TTL/UART interfaces

• Standard baud rate: 9600 bps

• Wireless range (line-of-sight):

  • ATC-863: >300 m

  • ATC-871: >500 m

  • ATC-873: >1000 m

  • ATC-875: up to ~2 km

• Operates using FSK/GFSK modulation with low bit error rate

• Half-duplex RF channel, suitable for point-to-multipoint networks

• Transparent data transmission – no change to upper-layer protocol

• Supports point-to-point, point-to-many, and many-to-point communication

• Carrier frequency 433 MHz (other options 315/868/915 MHz on request)

• Optional I/O ports and external antenna support

• Low-power RF data transmission for industrial applications

Technical Specifications (Table)

(Where exact missing values exist, treat as generic industrial specs and keep text conservative.)

Applications (Bulleted)

• SCADA and RTU wireless communication

• Wireless PLC networking and telemetry

• Remote monitoring and data acquisition systems

• Wireless sensor networks and I/O expansion

• Upgrading wired RS-232/485/TTL links to wireless

• Point-to-multipoint control in industrial automation

• Building management systems and utility monitoring

What’s in the Box

• 1× RF Data Converter Module (ATC-863 / 871 / 873 / 875 – as ordered)

• 1× Power adapter (as per model)

• 1× User/installation guide

• 1× Antenna (if supplied with model)

FAQ (4–6 Q&A)

1) What is the main difference between ATC-863, 871, 873, and 875?
The primary difference is wireless communication distance:

• ATC-863: >300 m

• ATC-871: >500 m

• ATC-873: >1000 m

• ATC-875: up to 2 km (line-of-sight)

2) Which serial interfaces are supported?
The ATC RF series supports RS-232, RS-485, and TTL/UART interfaces, allowing direct connection with PCs, PLCs, RTUs, and microcontroller-based systems.

3) Can these modules work in point-to-multipoint networks?
Yes. The RF channel is half-duplex and supports point-to-point, point-to-multipoint, and multipoint-to-point communication, controlled by the upper-layer protocol and addressing.

4) What is the typical baud rate for communication?
The standard baud rate is 9600 bps, suitable for most industrial data acquisition and control applications.

5) Are these modules suitable for upgrading from wired RS-232/485?
Yes. The modules are designed for transparent transmission, so existing RS-232/RS-485/TTL protocols can be shifted from wired to wireless with minimal changes.

6) What frequency do these modules use?
The standard carrier frequency is 433 MHz, with options for 315 / 868 / 915 MHz available on request.