Can anybody help?

I am connecting a RS 485 equipment to a Quantum Hot Standby System through 2 RS485/232 converters. Can anyone advise me how can it be connected or configured? Can i cascade 2 rs485 together?

 

You can do connection:

------------ ------------
I CPU1 MB I I CPU2 MB I
------------ ------------
I I
--------------- --------------- -------------
I RS232/RS485 I I RS232/RS485 I I RS 485 I
I Convertor I I Convertor I I equipment I
--------------- --------------- -------------
I I I
-----------------------------------

 

You are really asking how to network two or more RS485 devices - simply connect the two wires (A and B) in parallel and take care of the termination.

Meir

 

Check out the Momentum Hardware Reference Guide. It has all of the Schneider RS-485 connection products available from Schneider for Momentum, but it works fine for Quantum as well. If you plan on using your own cabling, check out B&B Electronics (http://www.bb-elec.com) Technical Library. The have the finest RS-422/485 Application Note on the planet! Good Luck!