To phrase it another way, the X20SM1444-1 encoder input is rated for 5 V (symmetrical), so this might be a more suitable module for your use case. It would be worth checking out and discussing with your B&R sales representative 
To phrase it another way, the X20SM1444-1 encoder input is rated for 5 V (symmetrical), so this might be a more suitable module for your use case. It would be worth checking out and discussing with your B&R sales representative