I have a similar set of data. I use Truecrypt (Windows XP, cygwin) for the irreplaceable and sensitive files, e.g. tax records. Then use a file, not whole disk and rsync the files to it. Unmount and rsync as suggested by other posters
Re:The guy is not so dumb as to waste $70
on
Build Your Own DVR
·
· Score: 3, Informative
An the author does has his act together. There are various common problems such as automation that he explains work-arounds to. Sounds like he actually used the stuff.
Completely false, it's "low voltage" and there are protections against stupid shorts:
The hot-swap chip is required by the standard and handles unitentional shorts. From the data sheet: "Provides Safe Hot Swap for +10V to +65V Power Supplies". This also 1) limits maximum inrush and 2) limits steady-stage current to 1) avoid "drooping" the supply voltage and 2) handle faults on the secondary (e.g. 6 V) side. I haven't looked at the standard recently, but there are supposed to be limits on the supply (-48 V) end to handle faults there. The reasons -48 V is used are it is very standard in telecom so low cost parts available for DC/DC converters and it is less than +/- 60 V which is the limit for "low voltage" in existing wiring codes.
(from discussion on the previous article)
1. No substantial EMI issues. It's DC, and both ends must have some filtering.
2. The spec is defined for twisted pair only, uses both unused pairs. However DC on coax is used to power the dish in Echostar and DirectTV. Never ever ever hook up the Satallite input to a TV, VCR, etc. or you will damage the TV, VCR.
3. No. It uses -48 V DC.
Disclaimer: I read the draft spec, not the final one.
Be carefull before committing to Toshiba in general. Apart from stories like above, their PDA support is at least that bad or worse. Plus they aren't doing an update to 4 month old PDA's (e.g. E740) to [Pocket PC OS version] Windows Mobile 2003. Admittedly that isn't an issue for this laptop.
Not enough details provided to tell. Given the cost, I would put a part before it, e.g. a step up/down switcher and some caps to handle (electrical) noise.
From the article:
External power supply - AC (85 - 240 volts) / DC (12 volts).
So if you have AC, you need an external supply with 12 V DC out. DC you need 12 V. Sort of true of everything with a wall wart or external supply (e.g. every laptop). Nothing new here.
That is because GSM for that carrier (VoiceStream, I assume) sucks; it has almost nothing to do with the fundamental technology. If you don't build enough towers, CDMA will be at least as bad.
Also having a huge number of subscribers ("subs") that spend lots of money on value-added services (e.g. pictures "shaMail", ringtones) helps pay the bills for upgrades.
Disclaimer: I work for a wireless data company.
Another way would be radius for authentication, which appears to be the articles focus. That's very popular for authication, including growing interest from the wireless operator space.
See Free Radius for one such implementation.
Having classes that are for the on-site live students too helps keep the quality up. Additionally having "day" classes (by on-campus professors) vs. "night" classes taught by people from industry (part-time associate professors) helps. I did my MSEE via TV from Stanford this way and was pleased; not exactly on-line but similar concepts.
I have had a wireless whine monitor for years and it does a great job of monitoring whines and cries. They called it a "baby/child monitor" at the store though;-) Oh, slightly different spelling, I guess.
Different versions of the firmware defeats the purpose of the parent post. It was sugested to put the checking in the hardware.
Different versions of the card reduces economies of scale and adds logistics problems (order too many of contry U, but not enough of country F even though total order is ok).
An additional reason to make it hard to change parameters is liability if someone "tweaks" power and causes interference and someone sues.
This isn't a fair comparison. The $1.25 is only the hot-swap chip. Then you need a -48 V to (for example) 6 V isolated DC/DC converter. See the p. 10 of the referenced TI data sheet for a more details. I expect that a power-over-ethernet solution would cost >$10US since -48 V parts aren't in the huge huge volume of wall warts.
The hot-swap chip is required by the standard and handles unitentional shorts. From the data sheet:
"Provides Safe Hot Swap for +10V to +65V Power Supplies".
This also 1) limits maximum inrush and 2) limits steady-stage current to 1) avoid "drooping" the supply voltage and 2) handle faults on the secondary (e.g. 6 V) side.
I haven't looked at the standard recently, but there are supposed to be limits on the supply (-48 V) end to handle faults there.
The reasons -48 V is used are it is very standard in telecom so low cost parts available for DC/DC converters and it is less than +/- 60 V which is the limit for "low voltage" in existing wiring codes.
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I have a similar set of data. I use Truecrypt (Windows XP, cygwin) for the irreplaceable and sensitive files, e.g. tax records. Then use a file, not whole disk and rsync the files to it. Unmount and rsync as suggested by other posters
I was going to get mine at Android's Dungeon & Baseball Card Shop, in Springfield. I'm still trying to figure out which state. http://animatedtv.about.com/od/comicbookguy/p/prof ilecbg.htm :-)
An the author does has his act together. There are various common problems such as automation that he explains work-arounds to. Sounds like he actually used the stuff.
Is here: http://www.infoworld.com/article/04/12/02/HNmanage rsmisuse_1.html?source=rss&url=http://www.infoworl d.com/article/04/12/02/HNmanagersmisuse_1.html/
Completely false, it's "low voltage" and there are protections against stupid shorts:
The hot-swap chip is required by the standard and handles unitentional shorts. From the data sheet: "Provides Safe Hot Swap for +10V to +65V Power Supplies". This also 1) limits maximum inrush and 2) limits steady-stage current to 1) avoid "drooping" the supply voltage and 2) handle faults on the secondary (e.g. 6 V) side. I haven't looked at the standard recently, but there are supposed to be limits on the supply (-48 V) end to handle faults there. The reasons -48 V is used are it is very standard in telecom so low cost parts available for DC/DC converters and it is less than +/- 60 V which is the limit for "low voltage" in existing wiring codes. (from discussion on the previous article)
1. No substantial EMI issues. It's DC, and both ends must have some filtering.
2. The spec is defined for twisted pair only, uses both unused pairs. However DC on coax is used to power the dish in Echostar and DirectTV. Never ever ever hook up the Satallite input to a TV, VCR, etc. or you will damage the TV, VCR.
3. No. It uses -48 V DC. Disclaimer: I read the draft spec, not the final one.
Be carefull before committing to Toshiba in general. Apart from stories like above, their PDA support is at least that bad or worse. Plus they aren't doing an update to 4 month old PDA's (e.g. E740) to [Pocket PC OS version] Windows Mobile 2003. Admittedly that isn't an issue for this laptop.
Not enough details provided to tell. Given the cost, I would put a part before it, e.g. a step up/down switcher and some caps to handle (electrical) noise.
From the article:
External power supply - AC (85 - 240 volts) / DC (12 volts).
So if you have AC, you need an external supply with 12 V DC out. DC you need 12 V. Sort of true of everything with a wall wart or external supply (e.g. every laptop). Nothing new here.
>>I can't wait to see cars with seat heaters or video units ...
Honda Odyessy EX-L, for example has seat heaters.
That is because GSM for that carrier (VoiceStream, I assume) sucks; it has almost nothing to do with the fundamental technology. If you don't build enough towers, CDMA will be at least as bad.
And FDMA is old analog cellular, you meant TDMA.
Also having a huge number of subscribers ("subs") that spend lots of money on value-added services (e.g. pictures "shaMail", ringtones) helps pay the bills for upgrades. Disclaimer: I work for a wireless data company.
Another way would be radius for authentication, which appears to be the articles focus. That's very popular for authication, including growing interest from the wireless operator space. See Free Radius for one such implementation.
Having classes that are for the on-site live students too helps keep the quality up. Additionally having "day" classes (by on-campus professors) vs. "night" classes taught by people from industry (part-time associate professors) helps. I did my MSEE via TV from Stanford this way and was pleased; not exactly on-line but similar concepts.
The article author mentions it (i.e. he states it as a cluster). Dr.'s Gray and Bell only mention "information centric" and "community centric."
I have had a wireless whine monitor for years and it does a great job of monitoring whines and cries. They called it a "baby/child monitor" at the store though ;-) Oh, slightly different spelling, I guess.
Different versions of the firmware defeats the purpose of the parent post. It was sugested to put the checking in the hardware.
Different versions of the card reduces economies of scale and adds logistics problems (order too many of contry U, but not enough of country F even though total order is ok).
An additional reason to make it hard to change parameters is liability if someone "tweaks" power and causes interference and someone sues.
Perhaps he can use the AIBO robodog camera in the previous post to guard his next one.
This isn't a fair comparison. The $1.25 is only the hot-swap chip. Then you need a -48 V to (for example) 6 V isolated DC/DC converter. See the p. 10 of the referenced TI data sheet for a more details. I expect that a power-over-ethernet solution would cost >$10US since -48 V parts aren't in the huge huge volume of wall warts.
The hot-swap chip is required by the standard and handles unitentional shorts. From the data sheet: "Provides Safe Hot Swap for +10V to +65V Power Supplies". This also 1) limits maximum inrush and 2) limits steady-stage current to 1) avoid "drooping" the supply voltage and 2) handle faults on the secondary (e.g. 6 V) side. I haven't looked at the standard recently, but there are supposed to be limits on the supply (-48 V) end to handle faults there. The reasons -48 V is used are it is very standard in telecom so low cost parts available for DC/DC converters and it is less than +/- 60 V which is the limit for "low voltage" in existing wiring codes.