hi im using gv-600 with geovision ver 6.1 and i just bought a data capture box ver v3 but i am not able to connect that with my pos system i have a ibm computer its a wayne nucleus pos system. i tried to check the printing mode through hyper terminal but it always give me an error like unable to open port please check port settings i tried different ports but still its not working ok the printer on pos is made by ibm and its connecting from db9 cable i have data box connected with db9 cable like pos to box db9, box to printer db9, box to computer/dvr db9 then usb to rs232. when i disconnect the cable from computer to dvr which is db9 and usb to rs232 thats when it connects and gives me no error any kinda help would help please