leadhead4444 0 Posted December 13, 2004 I want to trip a geovision DVR with an alarm system output. Will the i/o board do this Share this post Link to post Share on other sites
cctv_down_under 0 Posted December 15, 2004 Yes need either a rs45 converter and i/O box or an all in one I/O 485 card Share this post Link to post Share on other sites
