How to hook 2 Sensormatic AD2088 Keyboards To SensormatiMP48

[dans95tbird 0]

I currently have a sensormatic mp 48, i currently have both keyboards hooked up using the 8 pin wall terminal. The issue I am having is that the secondary controller (AD2088) seems to have an issue when both keyboards are connected. IE the monitor shows up on the keyboard but not the camera number, also I can controll the cameras just fine with it for 2 or 3 days then it starts switching to a different language and then locks the cameras or makes them run some eroneous pattern. I then have to reset the system and then everything is fine again for a couple of days. Any help would be appreciated.