Polarity: Does anyone know the polarity of the 12VDC 1A power adapter?
332882
The diagram on the Power Supply shows that the center is (+), outside is (-).
387609
All you need is the power adapter "6V 1A AC Adapter to dc Power Adapter 5.5/2.1mm" for a little of $5. Cut off the plug and strip the wires. Use a voltmeter to check the polarity of the wires and solder the correct polarity of the battery compartment. It took me 10 minutes.
785400
Sorry I can't help - I threw mine away... I am sure I kept the AC-DC adapter, but I have a big box full of those and no idea what they originally went to!
110185
In case anyone was still wondering about this, I just received mine and the sticker on the bottom says that Output is 5V/900mA, so it's not a full 1A, but pretty close.
300793
Naveen, i could see only one place on the device written as 12V and 1A. voltage value mentioned by your are not mentioned there. hope this helps!
773395
Here are the specs listed on one of the A/C adapters that came w/ mine (I own (2) of these hubs): ---------- Ktec AC ADAPTOR MODEL: KSAC0500200W1US INPUT: 100-240V ~50/60Hz 0.4A OUTPUT: 5.0VDC 2.0A DC connector polarity: translation of the polarity diagram --&gt;&gt; [Tip is + (positive), Ring is - (negative)] MADE IN CHINA 80BH ----------
1379732
When I needed one, I simply bought a broad spectrum selectable adapter... radio shack has them, so does amazon. they're a bit more pricy, but they are useful for other equipment. A good one will allow you to choose both the voltage/amps AND the polarity so that you can be sure not to fry the circuits in whatever hardware you're powering... you can find out what voltage and polarity you need by looking at the panel on the unit, or by checking the user manual.
569337
It's never a good idea to try to trust wire insulation color as a determination of polarity unless you have a datasheet that clearly states the color and polarity. I always test power supply outputs with a meter before connecting them.
1556336
That one stumped me too. Nothing in the instructions, although they do mention 12 VDC for that wire somewhere in a diagram. The instructions were horrible, and the thing never powered on. I returned it and got a refund. My suggestion is you do the same.
759088
The manual basically reads: Wires that your attaching to the battery are crossed (AKA polarity)
2132410
i believe the two black are the heater 12v no polarity. the other two are signal to the computer and polarity is necessary. good luck. peter
1391249
I had the same problem (question). The label on the hour meter says that the connections are polarity sensitive but when using to monitor AC usage, there is no polarity. I communicated with the vendors customer rep., and was told that they had engineered the counter to be able to be used in a AC or DC application, but to save money with parts that had already been labeled, they continued to ship the new design with the old labels. They told me to use the meter (counter) without regard to the plus and minus lables. I tried it and it works.
1836585
I have a question can you change polarity coming to the device and how will it affect the power coming out my application is 12 volts into the device and ?? out also what kind of speed control can I expect
53776
I'm not sure if they've changed since I purchased it (~2 years ago). But mine only came with a set of 8 standard 9v DC connectors and 8 reverse polarity connectors. It didn't come with any of those adaptors.
354313
I was using it with 18/4 wire 12v 7amp. The positive and negative stickers and and the wires were reversed on 5 or six of them.
1086603
Make sure the polarity is correct. The negative pin -- Is marked on backside.
1582397
I cant say except that 12 VDC doesn't mater about polarity. 12 VAC is only 8.5 volts effective or / root mean square