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Technical News & Discussion => Networking & Routers => 2-Wire 2700 => Topic started by: jimconsole on Jun 04, 2008, 10:33:20

Title: 2700HG adapter plug voltage
Post by: jimconsole on Jun 04, 2008, 10:33:20
Hi,

ive just been put on an adsl2+ service and the day after my 2700  power adapter died  ???

Just tested the router with another adapter and it works , so router is fine. Wondered can i use a multi voltage adapter in the meantime?    the router takes 5v    but my multi voltage adapter nearest v is only  4.5v  or 6v

Apart from waiting for an replacement adapter, which voltage setting could i use in the meantime?

Thanks
Title: Re: 2700HG adapter plug voltage
Post by: Rik on Jun 04, 2008, 10:40:44
Maplin (http://www.maplin.co.uk/module.aspx?ITAG=SPEC&ModuleNo=49063&doy=4m6#spec) have a 5V supply for £8.99.
Title: Re: 2700HG adapter plug voltage
Post by: jimconsole on Jun 04, 2008, 10:45:18
Hi

Thanks for replying.

The thing is i have no dosh until friday and currently using a friends internet connection, when i get home later i need the internet and really wanted to find what was the best way to go about it in the meantime using 4.5v or 6v?
Title: Re: 2700HG adapter plug voltage
Post by: Rik on Jun 04, 2008, 10:46:42
I'd go for 4.5V, it's less likely to damage the router.
Title: Re: 2700HG adapter plug voltage
Post by: jimconsole on Jun 04, 2008, 10:49:58
Ok thanks Rik i'll see how it runs  :thumb:
Title: Re: 2700HG adapter plug voltage
Post by: Lance on Jun 04, 2008, 12:33:14
I agree with Rik. I certainly wouldn't want to put more voltage through than the normal adapter, but less shouldn't do too much damage.
Title: Re: 2700HG adapter plug voltage
Post by: LesD on Jun 05, 2008, 22:05:13
Quote from: Rik on Jun 04, 2008, 10:40:44
Maplin (http://www.maplin.co.uk/module.aspx?ITAG=SPEC&ModuleNo=49063&doy=4m6#spec) have a 5V supply for £8.99.

I took a look Rik and the 5V one Maplin have is only rated for 2.5 Amps (DC 5 V 2500mA)

The 2700 PSU is 5.1V at 3.5A as supplied with my router.

I don't know if it needs such a high current as 3.5 A but a 2.5A one might be a bit light on umph!  ;)

(In a word or three of caution over-heat if used continuously)
Title: Re: 2700HG adapter plug voltage
Post by: Rik on Jun 06, 2008, 11:57:05
Thanks, Les, I didn't look at my PSU to check the rating.
Title: Re: 2700HG adapter plug voltage
Post by: g7pkf on Jun 06, 2008, 19:50:25
Make sure you use a REGULATED ADAPTER  do not under any circumstances use an unregulated one    :eek4:

it should be rated at 5V 3amp or higher the amperage that is not the voltage do not stick 6Volts into it.

maplin also do one for £20 that does 5V at ithink 6 amp. Also ensure you get the polarity on the plug correct or bye bye router (possibly).

Dean
Title: Re: 2700HG adapter plug voltage
Post by: Sebby on Jun 06, 2008, 20:50:43
Good tips. :thumb:
Title: Re: 2700HG adapter plug voltage
Post by: LesD on Jun 12, 2008, 19:34:52
I have just picked up this PSU on eBay for my second (Spare) Dual SSID 2700HGV.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=160246969817&ssPageName=ADME:B:BCA:GB:1123

Its not a 2Wire one but at 3.8 A, provided it is regulated and I am given to understand that it is, I think it should be OK.  :)

What say you guys?  ???

Notice I kept this "tip" to myself until the auction ended. I did not want too much competition pushing up the price. >:D
Title: Re: 2700HG adapter plug voltage
Post by: Ted on Jun 12, 2008, 22:56:31
Quote from: LesD on Jun 12, 2008, 19:34:52
Notice I kept this "tip" to myself until the auction ended. I did not want too much competition pushing up the price. >:D

As they say Les. "nothing personal, just business"  :thumb:
Title: Re: 2700HG adapter plug voltage
Post by: LesD on Jun 18, 2008, 22:25:30
Quote from: Ted on Jun 12, 2008, 22:56:31
"nothing personal, just business" 
As you say Ted.  ;)

The item in question arrived today and it works just fine. In answer to a question the seller told me it was "new and tested". Well for new it is a wee bit jaded but since it works I am not concerned that the pristine look has faded.  :)

To check it out I had a rummage in my garage for some low Ohmic value, wire-wound, highish wattage resistors and with half a dozen or so in parallel managed a combination that gave me 2.8 Ohms as measured on my Fluke.

With this as a load on the PSU the open circuit (no-load) Voltage of 5.24 Volts dropped under load to 4.95 Volts. So with Mr Ohm's Law of I=V/R, I calculate that I was drawing 4.95/2.8=1.77 Amps from this PSU. OK not the 3.8 A this PSU is rated at but the most I could muster without going to a lot more trouble. As the volts were holding up OK at this load I gave the guy positive feedback.   :thumb:

The regular 2Wire PSU that is in service with my no.1 router is rated at 5.1 V 3.0 A but I have not switched off no.1 router to test its PSU in the same way. I bet Dean has a thought or three on this though. Where's Dean?  ???
Title: Re: 2700HG adapter plug voltage
Post by: LesD on Jul 15, 2008, 20:22:22
I finally found a place to buy a DC power plug with a 10mm long by 4mm outer barrel diameter and 1.7mm inner connector diameter to replace the larger barrel plug that was on the power supply when I bought it. The other evening I removed the original plug and soldered the new plug on to the output cable.

After a check with my Fluke to make sure that the DC Voltage was of the correct magnitude and polarity, namely 5 Volts DC with the positive on the inner, 1.7 mm terminal, I connected this power supply to my spare 2Wire 2700HGV Single SSID router and switched on.

I am pleased to report that this unit powers the 2700 just fine.

I did connect the LAN up to my PC and login in to this spare router and took a look at the settings but did not connect it up to my ADSL (telephone) line. Evenings are not a good time for me to resynchronise lest I should get a connection speed that would jeopardise my IP Profile.

If anyone has need for such a power supply the unit I obtained is detailed below and from my perspective adequately powers my 2Wire 2700HGV router in the absence of a genuine 2Wire one.

ITE, AC/DC Adapter, P/No BS05EU, 5 Volt DC - 3.8 Amps



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Title: Re: 2700HG adapter plug voltage
Post by: Sebby on Jul 15, 2008, 21:01:10
Thanks, Les, that should be useful. :)