DC Adapter question
Hi,
I just moved from the UK to the US. I brought my Wireless access point/router with me, but I need to get a new DC adapter for it so that it works on the 110V supply here. It says on my UK adapter that the output is: 7.5V DC 1500mA 11.25VA Every universal adapter I find that has 7.5 as an option, seems to have a current rating of either below, or above the 1500mA I need. They are usually either about 1000mA, or 1700mA etc. Does anyone know if this is a required rating, or if it will automatically only take the current required, as long as it's set to 7.5V ? For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? Thanks for any help, Daniel |
On Tue, 07 Jun 2005 17:25:44 GMT, "Ann-Marie"
wrote: For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? the AP will take what it needs, so the rating should be at least equal to what you had before. Was the UK supply only rated 220-240V on the input and not multi-voltage ? Getting a spare for the equivalent AP (or a whole AP) off ebay would be another approach. and don't use channels 11 :-) Phil -- spamcop.net address commissioned 18/06/04 Come on down ! |
Get the higher one, it will only draw the current it needs. Check that it's
the regulated and not unregulated type and check the polarity is correct. -- Kenny Cargill "Ann-Marie" wrote in message ... Hi, I just moved from the UK to the US. I brought my Wireless access point/router with me, but I need to get a new DC adapter for it so that it works on the 110V supply here. It says on my UK adapter that the output is: 7.5V DC 1500mA 11.25VA Every universal adapter I find that has 7.5 as an option, seems to have a current rating of either below, or above the 1500mA I need. They are usually either about 1000mA, or 1700mA etc. Does anyone know if this is a required rating, or if it will automatically only take the current required, as long as it's set to 7.5V ? For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? Thanks for any help, Daniel |
Thanks for the replies.
Next problem, the only place I've found that supplies universal adapters with any kind of current above about 500mA seems to be some canadian place called mainelectronics, but their ordering/shipping seems a bit crappy. Other than E-bay, any ideas on other US places that I could get more of a range of universal adapters? I've already tried places like radioshack, but they're all low current. Thanks again Daniel. "Ann-Marie" wrote in message ... Hi, I just moved from the UK to the US. I brought my Wireless access point/router with me, but I need to get a new DC adapter for it so that it works on the 110V supply here. It says on my UK adapter that the output is: 7.5V DC 1500mA 11.25VA Every universal adapter I find that has 7.5 as an option, seems to have a current rating of either below, or above the 1500mA I need. They are usually either about 1000mA, or 1700mA etc. Does anyone know if this is a required rating, or if it will automatically only take the current required, as long as it's set to 7.5V ? For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? Thanks for any help, Daniel |
Another solution is to get a 110V to 240V AC transformer, then you can use
your existing adapter. -- Kenny Cargill "Ann-Marie" wrote in message ... Thanks for the replies. Next problem, the only place I've found that supplies universal adapters with any kind of current above about 500mA seems to be some canadian place called mainelectronics, but their ordering/shipping seems a bit crappy. Other than E-bay, any ideas on other US places that I could get more of a range of universal adapters? I've already tried places like radioshack, but they're all low current. Thanks again Daniel. "Ann-Marie" wrote in message ... Hi, I just moved from the UK to the US. I brought my Wireless access point/router with me, but I need to get a new DC adapter for it so that it works on the 110V supply here. It says on my UK adapter that the output is: 7.5V DC 1500mA 11.25VA Every universal adapter I find that has 7.5 as an option, seems to have a current rating of either below, or above the 1500mA I need. They are usually either about 1000mA, or 1700mA etc. Does anyone know if this is a required rating, or if it will automatically only take the current required, as long as it's set to 7.5V ? For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? Thanks for any help, Daniel |
A power supply current rating is the maximum available current. Any
equipment connected to it will draw no more current that the equipment rating. Your wireless access point/router will draw no more current than the rating of the wireless access point/router (which should be printed on the unit.) I suggest you check the Wireless access point/router label for the DC power consumption. The rating of the 220 VAC adapter you have has a rating that seems to me to be very high, much higher than the two 120 VAC adapters used by the two wireless access point/router units I own (12 VDC @ 300 MA and 12 VDC @ 500 MA.) Your adapter supplies up to 11.5 Watts, as compared to 3.6 Watts and 6 Watts for the two I have. One thing to consider is the flood of very inexpensive wireless access point/router units in stores like CompUSA and Office Depot. If you are willing to wait for a mail-in-rebate, the price can be as low as $8 US for a 802.11g Motorola wireless access point/router (my $8 US Motorola is Model WR850G.) This price is less than half the price of a 7.5 VDC @ 1500 mA adapter; RadioShack, for example, charges $39.95 US for a 3 to 12 VDC @ 1000 mA multi-voltage adapter, and $34.95 for a 40 Watt 120 ACV to 220 VAC transformer with US type AC plug and UK/European AC socket.) Phil Weldon "Ann-Marie" wrote in message ... Hi, I just moved from the UK to the US. I brought my Wireless access point/router with me, but I need to get a new DC adapter for it so that it works on the 110V supply here. It says on my UK adapter that the output is: 7.5V DC 1500mA 11.25VA Every universal adapter I find that has 7.5 as an option, seems to have a current rating of either below, or above the 1500mA I need. They are usually either about 1000mA, or 1700mA etc. Does anyone know if this is a required rating, or if it will automatically only take the current required, as long as it's set to 7.5V ? For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? Thanks for any help, Daniel |
Sorry, I left out the POINT of checking the power requirement level on the
wireless access point/router. You need only get an AC adapter with the correct voltage and sufficient current rating to meed the requirements on the label, and not the current rating on your 220 VAC adapter. A lower current adapter will be much easier to find, and much cheaper. Phil Weldon "Phil Weldon" wrote in message k.net... A power supply current rating is the maximum available current. Any equipment connected to it will draw no more current that the equipment rating. Your wireless access point/router .... |
Depending on who made it, I just get the power supplies from the
manufacturer site. Some even have dual voltage supplies for use both here (at 120) and elsewhere at 240. Ann-Marie wrote: Thanks for the replies. Next problem, the only place I've found that supplies universal adapters with any kind of current above about 500mA seems to be some canadian place called mainelectronics, but their ordering/shipping seems a bit crappy. Other than E-bay, any ideas on other US places that I could get more of a range of universal adapters? I've already tried places like radioshack, but they're all low current. Thanks again Daniel. "Ann-Marie" wrote in message ... Hi, I just moved from the UK to the US. I brought my Wireless access point/router with me, but I need to get a new DC adapter for it so that it works on the 110V supply here. It says on my UK adapter that the output is: 7.5V DC 1500mA 11.25VA Every universal adapter I find that has 7.5 as an option, seems to have a current rating of either below, or above the 1500mA I need. They are usually either about 1000mA, or 1700mA etc. Does anyone know if this is a required rating, or if it will automatically only take the current required, as long as it's set to 7.5V ? For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? Thanks for any help, Daniel |
This place has them.
http://www.altex.com/ William Lee "Ann-Marie" wrote in message ... Thanks for the replies. Next problem, the only place I've found that supplies universal adapters with any kind of current above about 500mA seems to be some canadian place called mainelectronics, but their ordering/shipping seems a bit crappy. Other than E-bay, any ideas on other US places that I could get more of a range of universal adapters? I've already tried places like radioshack, but they're all low current. Thanks again Daniel. "Ann-Marie" wrote in message ... Hi, I just moved from the UK to the US. I brought my Wireless access point/router with me, but I need to get a new DC adapter for it so that it works on the 110V supply here. It says on my UK adapter that the output is: 7.5V DC 1500mA 11.25VA Every universal adapter I find that has 7.5 as an option, seems to have a current rating of either below, or above the 1500mA I need. They are usually either about 1000mA, or 1700mA etc. Does anyone know if this is a required rating, or if it will automatically only take the current required, as long as it's set to 7.5V ? For example, if I get the one with only 1000mA rating, will it not work? If I get the 1700mA one, will it be too much and blow the wireless access point? Thanks for any help, Daniel |
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