iBurst Modem Power Requirements

chopsuey

chopsuey

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Need some tech spec on "old" grey/white UTD Modem.

Operating DC Voltage (V) Min/Max
and
Max DC Power (mAh) usage.

?

.. tried Kyocera's website, but they only list AC requirements.
 
This is what is written on my power adaptor, and yes its for the old white utd

Inout 100v-240V 50-60hz 300mA
Output 9V 1.2A

Nothing on modem itself, hope it helps
 
And if you haven't got 9Vdc lying around, it's possible (at least it was for me on my old-time UTD) to jack in a standard (at least it seems that way) router 12V, 1Adc brick without any ill effects.
 
bdt said:
it's possible (at least it was for me on my old-time UTD) to jack in a standard (at least it seems that way) router 12V, 1Adc brick without any ill effects.
Click to expand...

That is the idea I had. Currently running off a variable PSU that is jacked up to 9V for more that a year (stable). Had to use it when the supplied psu went bad. Did not have voltage spec at the time (no info on power brick) and tried my luck @ 9v.

I want to use the variable PSU for something else now, and I also have a couple of higher voltage power bricks lying around. But now that I know that the original brick was 9v, I'll rather stay in spec and buy a 9V one.

Thanx anyway .....
 
I am using a a 1amp variable power supply bought from Games and have been using it for 3 years now after the original stopped working.
Havent had any hassles with it and am running it on 9v.
 
Hey all, this is my first post on MyBroadband and I'd like to say hi to all... so Hi XD

Right, I've been looking on all kinds of threads and sites for an answer to this question with no success, I'm hoping someone here may shed some light on this subject.

I have one of the black iBurst modems, however we are in a VERY bad reception area and I've done the following...

1. Purchased an OMNI external antenna
2. Placed the modem in a weather proof enclosure on the roof
3. Connect the power/ethernet cables to the modem, but used power-over-ethernet to get the power to the modem (no need in using two cables)
4. Connected the power side to the transformer and connected the ethernet to a Netgear router.

Now, my question is as follows.

Considering that the extension (about 10 m) of the power-over-ethernet would loose some power on the way to the modem, and that the OMNI antenna would consume some of the power from the modem, what kind of input voltage should I be looking at for the modem (from the transformer). At the moment I'm using a 9V input, but I'm getting some occasional drops in the signal and was wondering if it could be power related (that the modem may need a higher input to increase the output of the antenna). Then obviously there is the problem of loss of power due to the distance it has to travel before it gets to the modem.

The transformer can be set to 12V (aftermarket unit), but I don't want to do the change and blow the modem.

Any suggestions would be appreciated :)

Thanx
Acid
 
Hey

Thank you for the reply, I will give this a go

Burn on ;)
Acid
 
Well just so you know, the black iBurst (ethernet + usb) UTD's seem to work fine with 12V. Mine came with a 9V adaptor, but it blew and since then I've been using a 2A 12V DC adaptor and its working great. I dont know if this has any effect on the device's lifespan, but maybe it has its own built-in regulator? Point is it works, for me - so you may try it for yourself I guess :P
 
Hi... 8 months and still going strong?.. IE no black smoke from your iBurst Desktop modem yet?

I want to keep one in my car, running from the lighter jack... What's that... 9V - 16V depending on the revs... These modems cost quite a bit so not too keen to do it without a regulator/ fuse...
 
MrIncredible said:
Hi... 8 months and still going strong?.. IE no black smoke from your iBurst Desktop modem yet?

I want to keep one in my car, running from the lighter jack... What's that... 9V - 16V depending on the revs... These modems cost quite a bit so not too keen to do it without a regulator/ fuse...
Click to expand...
Car voltage could exceed 12V... I'd definitely try get a 9 / 12V regulator or add some resistance, if I were you.. iBurst UTD works on 12V, but I wouldnt push it past that
 
Well... not necessarily...

Most of these types of electronics have a diode bridge and a voltage regulator just inside the device. So if you are to hook a voltage regulator/Power adapter/resistor up to it, you're still running it through another voltage regulator just inside the device.

The question is just what chip is used inside the modem... and if it's installed in a configuration that will not see it exceed it's specifications.

So there are 2 ways to find out... 1) try it and see how long it lasts or 2) open up the modem and check out the chip specs....

I can hardly believe that there's no documentation on this to be found on the internet... I've searched... guess it's all up to me to find out....

PS Many devices are specced at 12VDC 1A - yet make use of voltage regulator chips that support an input range from 5V to 24V...
 
Power supply for desktop modem

Hi.
My desktop 1 Meg modem is suddenly not showing any activity (no power lights or anything). It was unplugged during the latest storm so I don't know what would have caused the problem. I'd like to try another power supply - can anyone tell me the required amperage etc?

Thanks
divv
 
Thanks to the mods for moving my post to a relevant thread. If the modem's existing supply is 1.2 amp would I get away with plugging in a 1.5 amp PS?????
 
divv said:
Thanks to the mods for moving my post to a relevant thread. If the modem's existing supply is 1.2 amp would I get away with plugging in a 1.5 amp PS?????
Click to expand...
Yes, when replacing a power supply, the voltage must match, but the current (Ampere) can be rated higher.
Just make sure you get the polarity of the plug correct.
 
ginggs said:
Yes, when replacing a power supply, the voltage must match, but the current (Ampere) can be rated higher.
Just make sure you get the polarity of the plug correct.
Click to expand...
Darn.. I didn't check the voltage :-(
Existing one is 9 V and my other PS's are 12V.. ginggs I wouldn't have a CLUE how to check the polarity!!
 
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