Yep you need this cable RS232 null cable to install firmware onto the box this will connect the box to an old computer with this connection. I have laptop and need extra cable USB serial convertor... sorted now happy days.
Some companies supply them with the boxes, others don't. You should be able to pick one up in Dublin handy enough, but make sure you get a NULL MODEM cable.
Just wondering, i have a cord that has 9 pins male going in 2 the back of my kryptview box, it has 9 pins female the other side (I don't think it's a null mode cable) I got an adaptor that plugs in to the female side of it and has 15 pins male on the other side of it and plugs in to the laptop so they are connected, should this work or do i need a null modem cable to work it. If it should work what do i do to let the computer know that it is connected or should it know automatically. Any help here would be much appreciated.
The 15 pin on your laptop is most likely for connecting an external monitor so it would be of absolutely no use to you. You need the NULL MODEM cable, and if you need to connect it to your laptop you will most likely need a USB adaptor.