cctvsystems

Hi I have been asked to take over management of an access control system Attached is the photo of the board, and all is working fine, except I have no way of managing it - there is a USB-485 interface for connection to a PC, but no software. I need to add additional fobs to the system, and generally manage/secure the system - but do not have any software. Can anyone advise what the system is, what software is needed, where I can get it. etc? thanks