12Volt DC input, Positive to RED, and Negative to BLACK, Right!? 5Volt Volt DC output, Positive to RED, and Negative to YELLOW, Right!?
485376
That's correct. I am using four of these to power four Raspberry PIs. Yellow/Red are the 5V out side and Black/Red are the input side.
764382
Hi Mike,my power supply adaptor is 12 volt,2.5 Amp.part # 18778.the +pos is on the inside of the post plug & the - negative ground is on the outside of the post plug plug that plugs into your 12 volt port.
789074
The meter supply with polarity connector, black and red wire, which represent minus and plus. The unit does not work at all if change polarity.i do not know what will happen if connect minus 5 v and plus 5 v. without ground. I assume it will not work or just show something wrong. Also, I take a look on surface mount parts and see that red wire via connector goes to diode. You may order this little thing just for few $ and blew up it under your desire in many different ways.
704610
Output: DC 5.2V - 2.5A INPUT: 100-240V - 50/60Hz Port size: 5.5 x 2.5mm (outer is negative, inner is positive)
2198658
No, this produces no negative voltage. The "-" terminal is marked to indicate what you would normally refer to as DC ground
1052842
Jonathan I believe that this camera is designed for use with a 12V DC system, hence the red wire would be the positive and the black one ground. I believe you will have to come up with a 12V transformer of some kind for power before you can even hope to this thing to work. Again I'm not positive on this since I could never get the thing to work satisfactory. I returned it to Amazon. Hope this helps.
1427375
The white and yellow hook on the small screws on the shunt. The black wire is negative battery or a ground. The red and green are both hooked to battery positive. When pushing the small switch on the front, the readout switches from amperage to voltage and vise versa.
1371946
Mine were red and black. However, if you can get a small battery like a 9 volt and touch them to it, it will only work one way and shouldn't blow the bulbs. I did this with mine just to check because I didn't have a multimeter at the time.
1837927
The back says DC 5V - where you plug it in. there is additional print on the underneath side that is so small I cannot read it. Sorry
2087133
This is a dual wire, so if you want the black to be ground and the red to be power, simply wire it that way, or vice versa.
1601387
Red: 5vdcBlack: GroundWhite: DataIf you Google search then there is a data sheet available and lots of examples.
1064911
Yes, I had the same problem. The two smaller wires are the supply voltage for the meter itself. Red is positive, black is negative. I used 5 Volts DC to power mine. The bigger wires are red, blue and black. Red is the voltage sense, blue and black are for the current sense. Black should be connected directly to ground. The blue then becomes the ground for whatever device you are sensing the current on. So, the ground side of the load goes into the blue wire (then through a shunt resistor) and then out of the black wire to ground. Hope this helps! :)
404149
No, the idea for this one is a booster. The output is variable, but I don't think there's much overlap between its acceptable input voltage and its output. From my unit, it certainly couldn't go as low as a 5 v DC output.
439138
Black is negative 12vRed is positive 12v (can be switched or constant power supply)Third wire (color varies) is supply voltage wanting to measure
52431
The small red/black is for 12dc in, and large red/black is measuring dc current. Good luck. they work very good on common small power supplies
8905
Doesn't matter how you wire them since the driver circuitry has an inverter bridge. They can run on 12V AC or DC. I believe the wires are black and red so following convention I wired black to negative and red to positive.
36026
To be perfectly honest with you, if you aren't sure about wiring, maybe this isn't the right product for you. It will mean using trim tools and splicing to a found 12v wire. If you want to press forward, the red goes to a switched +12vdc source, and the black goes to a chassis ground point.Good luck.