ATC 873 Wireless RS232/RS485 Adapter: RS485


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SKU: GC-ATC-873-S2

MPN: ATC-873-S2

Manufacturer: ATC

Delivery: Ships within 10 to 14 business days
Qualifies for Free shipping to the US


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Product Information

Product Description

Authorized North America Distributor StampATC-873 wireless digital transmission module offers standard RS-232, RS-485 and UART/TTL level interfaces for direct connection with computers, RS485 equipment, SCM or other UART parts.

ATC-873 has adopted half duplex communication channel for point to multi-point communication mode. The primary station takes full control of communication harmony, and adopts data frames with address codes for data or command transmitting. The secondary station receives them and selects a  response by comparing address codes. To avoid mutual interference, all work is fulfilled by upper layer protocols, which ensures only one wireless module in the communication network is in the transmitting state in any given instant.

The transmission channel is transparent to the user. ATC-873 can also be applied to point to point communication, making it an easy and smooth upgrade to the wire (RS232/485/TTL) transmission mode in original system.


Order Summary




Manufacturer Part # (MPN)

GC-ATC-873-S1 RS232 ATC-873-S1
GC-ATC-873-S2 RS485 ATC-873-S2


  • Ultra low power transmission
  • Visual distance transmission distance up to 300 m (863), 500 m (871), 1 km (873), 2 km (875).
  • Based on FSK/GFSK way of debugging, efficient communication protocols, good reliability, low bit error rate.
  • Data transparent transmission, transmission is longer than the data frame.
  • Colleagues provide RS - 232 / RS - 485 / TTL level interface, optional I/O port.
  • Can be used to point to point, point to many, many to point communication mix a variety of ways.
  • Only data control, users need extra program.
  • Carrier frequency 433 MHZ, also can provide 315/868/915 MHZ carrier frequency.
  • High reliability, small and light
  • Watchdog fact monitoring
  • Users can choose various antenna-setting project and antenna according to user’s different need to achieve a optimal effect.

Documents and Drivers


ATC 873 Wireless RS232/RS485 Adapter Datasheet

ATC 873 User Manual


ATC-873 Driver For Win32



  • Transmitting current: <360mA
  • Receiving current: <45mA
  • Sleeping current: <1mA


100mm x 86mm x 26mm


10% ~ 90% relative humidity without condensation


ATC-873-S1, ATC-873-S2

Power Supply


Product Weight



  • Channel speed rate: 1200/2400/4800/9600/19200/38400Bit/s
  • Interface speed rate: 1200/2400/4800/9600/19200/38400Bit/s

Temperature Range

-20°C to +70°C (-4°F to +158°F)

Transmission Power


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