Offered for your consideration: Sony BRU-H700 Multiplex Unit And BRC-H700 HD 3CCD Color PTZ Video Camera. Frankly I have no idea how to test. Both units power up, I tried connecting a computer monitor directly to the camera, didn't show anything (I am not sure if it should) also tried that same with the multiplexer unit, no picture. I took a lot of photos showing the units all around, please check them out as well and if needed I can provide as many photos as you like, I will also conduct any tested, if I am described what do do. If you are a local buyer and would like to check/test prior to the purchase-perfect.