Re: [slim] Re: OT: Power line network adaptors (was: Okay, maybeit's time to call it a day...)
On Sun, 2005-09-25 at 09:19 -0700, MrC wrote: PAUL WILLIAMSON Wrote: As for power supply standards, try figuring out why hospitals (and a select few other businesses) get 207V. I have absolutely no idea why, but they do. Most larger businesses run higher 240 voltages, because they use 3-phase power. 3-phase is far more efficient for large amperage circuts than the standard 2-phase we all normally use. Also, 3-phase is a no-brainer for generator motors, due to the 3 poles on such motors. I'm no longer working with electrical engineers all the time, but I think MrC has the concept right, but the numbers wrong. Or I could be wrong. I think 240v is standard one phase, two leg power, which most of the US has in their house. Common 120v is one leg, to ground. Dryers and air conditioners use both legs and see 240v. 208v is three phase. And it is way more efficient for motors, etc. Some industrial/commercial lighting is 177v because that is what you get when you tie two of the three phase legs together. Hospitals also use lots of 120v circuits with special and expensive outlets. The key is that they are designed to avoid sparks, which is important since oxygen is everywhere in most hospitals and other explosive gasses (used for anesthesia, etc.) are also common. Audiophiles buy the hospital grade outlets to improve the sound of their systems. Some audiophile vendors take normal $30 hospital outlets and put them in nice boxes and sell them for $100. Nice mark up. -- Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
RE: [slim] Re: OT: Power line network adaptors (was: Okay, maybeit's time to call it a day...)
I did a bit of googling, and found a range of products... Main concern at the moment is that the maximum transfer rate is around 14mbps so average transfer speed are probably more like 8-10mbps. In fact, that's slower than my wireless right now. Although it would seem that 85mbps adaptors are on their way, and should be available in the UK in a few weeks. Max transfer rates of 85mbps is probably going to translate to about 50mbps average. That's a bit more like it, and it faster than my wireless right now. I reckon I'll hold out for that. My wireless is supposed to be up to 125mbps; Yeah, right. Sigh. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robin Bowes Sent: 23 September 2005 12:50 To: discuss@lists.slimdevices.com Subject: Re: [slim] Re: OT: Power line network adaptors (was: Okay, maybeit's time to call it a day...) Philip Downer wrote: On Fri, 2005-09-23 at 03:42 -0700, Fifer wrote: I haven't used them but 'this' (http://www.devolo.co.uk/uk_EN/button/dlanfaq.html) might help answer some of your questions. I can highly recommend the Devolo homeplug products they are very good, and they have now released setup tools for Linux and OS X which work very well. I've just ordered an Acer Homeplug Ethernet Kit from Amazon - two adaptors for £42 delivered! If they don't work, they're going back, but you can't complain at the price! R. -- http://robinbowes.com If a man speaks in a forest, and his wife's not there, is he still wrong? ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
Re: [slim] Re: OT: Power line network adaptors (was: Okay, maybeit's time to call it a day...)
Dan Goodinson wrote: Although it would seem that 85mbps adaptors are on their way, and should be available in the UK in a few weeks. Which manufacturers are producing these? Do you have any links? R. -- http://robinbowes.com If a man speaks in a forest, and his wife's not there, is he still wrong? ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
RE: [slim] Re: OT: Power line network adaptors (was: Okay, maybeit's time to call it a day...)
Indeed ;) I hate to say it (as you probably don't want to hear it ;) but my SB1 is working fine via wireless... I was only really thinking about the adaptors for regular network use i.e. not related to SB (hence off-topic). In fact, I just chatted to a guy at Solwise (see previous post, with links for 85mbps power-line devices) and he reckons that his bench test showed true transfer speeds (based on transferring a large data file) of: approx 7mbps for a 14mbps-rated device; approx 40mbps for a 54G-rated setup (with units only a few feet apart and therefore pretty much 100% signal strength); and, I think approx 25mbps for an 85mbps-rated device. I wonder if I heard him right, as 25mbps sounds a bit low. He mentioned some specs on the Solwise site, so I'm looking for this data before I commit to buying... Even 25mbps would be pretty good but still not much different to my current wifi setup. The only benefit would be that there would be no interference caused by cordless phones or microwaves. I need to do a bit more research into the noise on a standard electrical supply line though, as it seems that these things are still susceptible to a noisy line... ___ Discuss mailing list Discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
