Multiplexing RS-422 data

Hi,
My question is not arduino specific.

We have a PCB in a project in which we have one available RS-422 interface on the processor.

I have to take in data from 4 sensors which work on RS-422.

Is there a simple solution to achieve this which someone has already used?
I have one or two approaches in my mind but I don't want to reinvent the wheel if someone has already worked on a similar thing.

If your sensors are addressable, you can poll them.

Paul