What are the serial data wires for? Does the green "serial ground wire" need to be connected to a ground?
1571838
It has been quite awhile since I wired mine. If my memory serves, the red and green wire were for communication with another device. Something that would be more then likely used in a boat with a compatible product. Mine was wired to my four wheeler and I did not use the red or green wire. I wired mine to the lighter switch in my four wheeler, so it is only powered while the key is on. (Hope this helps)
1571839
The red and black bundled wires are 12 v + and ground. The green wire is the serial ground and only functions as a ground for the serial wires. Unless you're going to use the external serial function, there is no need to ground the green wire.
312800
If I remember, the green wire attaches to a positive power feed, to read the voltage. I only wanted the temp, so only attached to positive and negative wires.
2207992
do you need the two wires for data or power? If it is for data, this should work.
612473
There is no ground wire connection but I just unscrewed one of the cover screws to connect the ground screw, hum problem gone.
1748441
From my understanding, it is a stand alone device. There is no need to connect it to a ground.
442835
I am not an electrician so what I would do is Google it. Check out this site... http://www.epanorama.net/documents/groundloop/why_grounding.html
842764
It's wire, use it for whatever you need. there's no set purpose, power, signals, what have you. just need the appropriate connectors and pins to make the connection.
1853712
Make sure wires are hooked up correctly and nothing is exposed to ground out. The unit itself is very simple to run when hooked up correct
1884222
I know, it was very frustrating for me. I had to call an electrician to install it. As I recall, you leave all three of the wires that are already attached with those screw ends alone. You only use the two bare wires and the ground wire to your house wires. Green is usually the ground, but I don't remember in this particular case.
552631
The chassis of the solenoid/isolator/relay does not act as a ground. If supplying a 12v+ pulse to one of the small terminals, you must provide ground to the other small terminal.
450652
I haven't purchased this yet, but if there is no ground wire connection on the unit, then you just connect the ground wires from the incoming cable and outgoing cable together in a plastic box. If you do use a metal box, then you should run a pigtail ground wire to a grounding screw in the box to ground the box, but it would be easier to just stick with a plastic box so you don't have to worry about grounding the box.
1424712
You need to connect that black wire to the bottom of the original pcb board, battery ground. You need both pcb board.
1061785
This is for the wireless system. They do make one of these for the in ground system too. I accidentally bought the in ground one at first so I know first hand
1182753
I did not hook up the green wire. I wired both the camara and the monitor direct. When I turn the Monitor on it has a picture from the camara automaticly. So far it has worked great. If I do not want the monitor "live" all the time I just discontct the line where the two sections screw together to prevent my battery from running down.
638244
I believe it depends on the version. The newer model does not need it? Check their web site. Its always best to ground everything though.
118684
I put one in the garage for the outside lights and did not ground it. I just screwed it to the box. It worked just fine.
1671845
The ones I used only had a blue and brown wire and the brown is positive and blue negative. The unit will also work on 12 VAC since there is a circuit inside to rectify and filter the power to 12 VDC. So, I suspect that this new Green/Yellow wire is for ground. I had several of these circuits fail because I was using in in a 12VDC system with a charging circuit that would take the voltage up to 14.5 VDC. You can allow for this if you add a 5 ohm/5 watt resistor in series with either the blue or brown wire.