User`s manual

Appendix A Watchdog Timer 37
A.2 Data Format/RS-422 Control Settings
= On
= Off *= Default
A.3 COM3 Mode Selecting
Beside the 24VDC power connector there is a small plastic lid fastened
by a screw. After removing the lid there appears a set of jumpers which
allows selecting mode of COM3: JP5-JP12 setting
584SR
224SR
232SR