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Wireless RS485, RS232, TTL Adapter - ATC-871 Short distance Radio (500m/1640ft)


MPN: ATC-871

RS232 & RS485 ship same or next business day;
TTL ships in 5 to 7 business days

Availability: in stock

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Warranty: 1 year Comprehensive support for all products

Authorized North America Distributor Stamp

The ATC-871 is a short distance (500m/1640ft) wireless adapter for RS232, RS485, or TTL level signals. It has 8 channels and baud rates up to 38.4K. The frequency range is 429-433.30MHz and the device uses low power (max. 100mW).

Two ATC-871s are required for a communication connection. Select the connection, RS232, RS485, or TTL, as units only allow for one type of serial connection.

The RS485 version requires a RS485 configuration cable to send the the appropriate type of message (RS232,RS485) to set up the unit. The configuration cable is not included. See Related Products below.

Order Summary



Serial Interface

Manufacturer Part #

GC-ATC-871-S0 TTL Level ATC-871-S0
GC-ATC-871-S1 RS232 ATC-871-S1
GC-ATC-871-S2 RS485 ATC-871-S2
Antenna 50 ohm (SMA) antenna included
Baud rate up to 38.4 K
Channels 8
  • Transmitting: <100mA
  • Receiving: <20mA
Dimensions 44 x 27 x 8 mm
Enclosure Industrial Metal Enclosure
Frequency band ISM FSK/GFSK freq band, 433MHz
  • RS232/RS485/TTL: -S1, -S2, -S0
  • RS422/485 side is 4 position terminal block
Mpn ATC-871
Power supply 9VDC 200 mA External power supply included
Product power supply 9VDC 200 mA External power supply included
Range up to 500 m
Receiver sensitivity -121 dbm
Serial types RS232, RS485, or TTL
Temperature range
  • Operating: -20°C to +65° C
  • Humidity: 10% to 90%


The ATC-871 now supports 8 channels and not the 16 channels still mentioned in the ATC documents.
ATC-871 Datasheet View (PDF)
ATC-871 User Manual View (PDF)


ATC-871 Driver and Software Download (ZIP)

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