ADAM-4510s

http://www.advantech.com.tw/support/sr_detail.asp?SR_ID=1%2BFY%2B519

Не справится:

Does the ADAM-4510 can be used to convert from RS-422 to RS-485?    Date:7/26/2000 4:55:41 PM
     Can the ADAM-4510 be used to convert from RS-422 to RS-485?
The ADAM-4510 is designed to function as extending the communication signal of RS-422 or RS-485. It cannot be used as a RS-422/485 converter. Mainly cause is the RTS control signal.

As you know, the RTS signal for RS-422 is always ON, but the RS-485 need to control the RTS signal for switching to as a receiver or a driver. Besides, the RS-422 use 4-wire to transmit/receive data which called full-duplex, but RS-485 just need 2-wire call half-duplex.

In another word, when you try to use the ADAM-4510 as a RS-422/RS-485 converter, you just can receive or transmit data at the RS-485 end. It is recommended that you can select other product for your application

Вроде подходит

http://www.icpdas.com/products/Remote_IO/i-7000/i-7510a.htm.

Но я бы все-таки уточнил у поставщика таких модулей, например, в ИКОС.

Вот что сказали в ICP DAS

I-7510 is unable to convert RS-485 to RS-422 but I-7522A or I-7522AD be allowed
Visit web site http://www.icpdas.com/products/Industrial/intelligent/i-7522a.htm