I installed a Touch 50 and had to extend the HDMI cable and power for the USB. The unit works fine with both extended connections. The HDMI is plugged into the Cerbo GX. However, do to the distance between the Cerbo and Touch 50, I used 14/2 Ancor wire attached to a Blue Sea USB socket for powering the device.
Now for the question. Since I had a 12v panel with fuses, I connected the new 14/2 power cable to the 12v panel instead of the bus bars like the Cerbo. I originally liked this option because I could easily add a 3amp fuse to protect the Touch 50. It’s important to note that this panel is turned on an off by a separate “coach battery” switch. It’s the same switch that powers the refrigerator and other 12v outlets. The Cerbo power cable is attached to the positive and negative bus bars. When I turn on the main DC switch, the Cerbo is powered on. I have since been advised, that I should move the 14/2 cable powering the Touch 50 over to the bus bars, same as the Cerbo GX. This way both devices will power up at the same time - when the main switch is turned on.
Should I move the 14/2 power cable from the 12v panel controlled by a separate switch to the bus bars or leave it as is? Is it best for both devices to be turned on at the same exact time? Should I just leave the Touch 50 power cable attached to the 12v “coach battery” circuit?
