Port Powered RS-232 to RS-422
Part number: ATC-101
In Stock : Available

Product overview

ATC - 101 interface converter can send the signal RS–232C serial port data (TD) and receive data (RD) into four line balance of the half-duplex RS-422 signal. It is the best choice of a remote Control device or point to multipoint communication bus. The interface transition device don't need ac/dc converter, it can be directly from the Data within the RS-232 port transmitter data (TD), request to Send (RTS) or Data terminal ready (DTR) to obtain power. It also have the Automatic Send Data Line Control function. When to Send and receive Data, do not need the RTS control. So the power supply from serial port and Automatic flow Control makes you don't have to reset the hardware or install software. Improve the surge protection, can ensure the safety of the RS-422 network.


  • DB9-S/P space saving connector
  • RS-232C data interface fully compatible with PC
  • DB9 connector and terminal are optional to RS-422 interface
  • Automatic direction control of transmitting data (TXD), zero-latency design
  • Working mode :Asynchronous half duplex
  • High efficiency serial port electricity stealing technology, need no external power supply, real three line (TD, RD, GND) mode communication
  • Communication speed: 0-115.2kbps
  • ransmission distance: 0-1200 meter@24AWG

Communication Parameters


Compatible with the EIA/TIA RS-232-C and RS-422 standard




T+, T-, R+, R-, GND

Working Mode

Point to point or point to multipoint, asynchronous half duplex(four line)

Direction Control

Automatic Send Data Line Control, automatic identification and control data transmission direction

Baud rate

300-115.2kbps,automatic detection rate of serial port signals

Transmission Distance

RS-422 side 1200 meters (19.2 kbps), RS-232 side suggest no more than 10 meters



DB-9 male


DB9 male or 6-pin Terminal block

Load Capacity

Maximum connections of 32 nodes(64,128,256 can be customized)

Power Supply Parameters

Power Supply

Without external power supply. Equipment from RS-232 port TXD, RTS, DTR signal for power supply.

Power Consumption

Static power consumption within 10 mA, dynamic average power consumption of 40 mA

Physical Characteristics


Plastic shell





Environmental Limits

Operating Temperature

-20 ~ 70°C (-4 ~ 158°F)

Storage Temperature

-40 ~ 85°C (-40 ~ 176°F)

Ambient Relative Humidity

5% to 95%(non-condensing)

Standards and Certifications



The product application
Company products are widely used with the electric power, industrial control, telecommunications, commerce, banking, insurance, security, smart CARDS, and other industries, production and sales of the products of the company, supporting complete, cost-effective, timely and thoughtful service, products are exported to Taiwan, Hong Kong, South Korea, Thailand, the United States, Poland, Italy, Spain, Egypt, Russia, Norway, Singapore, Malaysia, Indonesia, and other national regions, well received by clients at home and abroad.


Product connection instance

Product size chart