I wish the powershot was either 12V or 24V instead of oddball 18V. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Ryan Whalen > Sent: Thursday, June 12, 2003 9:08 AM > To: [EMAIL PROTECTED] > Subject: RE: [smartBridges] POE, voltage range > > > The reasoning behind not just throwing in a single 18V for all > applications is because in shorter cable runs, there will not be much of a > voltage drop over the Cat5, causing an excess amount of voltage to reach > the unit, possibly damaging it. > I do believe a switch would work though on the powershot, which could vary > the amount of resistance inside the powershot depending on how long your > cable length was. > Ryan > > > I agree with Jack. > > > > At most, why note make a power shot with three settings: 12v, 15v, and > > 18v? That would seem simpler and cheaper than trying to build > > potentially troublesome intelligence into it. > > > > Sam > > Not an EE > > > > :) > > > > On Thu, 12 Jun 2003, Jack Berridge > > wrote: > > > >> Sounds interesting....and scary. I'm not an EE but when you start > >> talking about an "intelligent powershot" that is capable of making > >> decision based on "sensing the cabling length" it scares me. This > >> scares me because "intelligent devices" tend to die (fail) more often > >> than a good old dumb device that's only purpose is to provide a > >> specific (designed/engineered) amount of power. To me, I see an > >> intelligent device as another point of failure just waiting to > >> happen. Whereas, if we had a straight 18v power supply (powershot) > >> it's either working.....or not. No intelligence, no extra features > >> or sensors to worry about failing --- just good old power source that > >> is capable of supplying 18v as designed/engineered. Why do you feel > >> the need to have an intelligent powershot versus one single straight > >> 18v that works for short and/or long Ethernet cable runs? > >> > >> Thanks. > >> > >> > >> > >> Jack > >> > >> > >> > >> At 12:10 AM 6/12/2003 +0800, you wrote: > >> >This is going to change. As I mentioned earlier, we are working to > >> >have higher power voltage adaptor and with intelligent powershot > >> >that can dynamically adjust the power supply based on cable length > >> >sensed. So it will be one universal AC power adaptor. > >> > > >> >Alex > >> >sB Tech Support > >> > > >> > > >> >-----Original Message----- > >> >From: [EMAIL PROTECTED] > >> >[mailto:[EMAIL PROTECTED] On Behalf Of Jack Berridge > >> >Sent: Wednesday, June 11, 2003 9:37 PM > >> >To: '[EMAIL PROTECTED]' > >> >Subject: RE: [smartBridges] POE, voltage range > >> > > >> >Curious. If you highly recommend using smartBridges power supply for > >> > smartBridges devices, why doesn't smartBridges have a power supply > >> >and PoE solution that works to the maximum Ethernet cable specs > >> >(~300 feet)? Why even have the 12v power supply? Why not have an > >> >18v power supply that will work with the 50' or less cable runs as > >> >well as the longer cable runs? At least for the outdoor (WISP type) > >> >solutions. Other vendors we work with use the higher end (18v, even > >> >24v) power supplies and it works for the short as well as the long > >> >runs. It just seems that the 12v has caused your user community > >> >more problems which are resolved by going to 15v or 18v > >> >solutions......why not have an 18v be the normal (default) solution > >> >for outdoor smartBridges solutions? > >> >Thanks. > >> > > >> > > >> > > >> >Jack > >> > > >> > > >> > > >> > > >> > > >> > PM 6/11/2003 +0800, you wrote: > >> > > >> >>If you are using any third party power supply, please use the > >> >>regulated DC voltage power supply. We are highly recommended to > >> >>use our smartBridges Power supply for our devices. > >> >>If the Ethernet cable length exceeds more than 50 meters, then only > >> >>18V is recommended. > >> >> > >> >>Seeni, SB support > >> >> > >> >> > >> >>-----Original Message----- > >> >>From: [EMAIL PROTECTED] > >> >>[mailto:[EMAIL PROTECTED] On Behalf Of phantam > >> >>Sent: Wednesday, June 11, 2003 9:57 AM > >> >>To: '[EMAIL PROTECTED]' > >> >>Subject: RE: [smartBridges] POE, voltage range > >> >> > >> >>Dynamic power sounds intriguing. > >> >> > >> >>---------- > >> >>From: Mark Koskenmaki [mailto:[EMAIL PROTECTED] > >> >>Sent: Tuesday, June 10, 2003 7:32 PM > >> >>To: [EMAIL PROTECTED] > >> >> > >> >>Thank you. I have no fears of even reaching 15V, but wanted to > >> >>make sure that even if somehow things got to 15.5 or 16, it would > >> >>be ok. > >> >> > >> >>Thanks again. > >> >> > >> >>Mark > >> >> > >> >> > >> >>NEOFAST.NET > >> >>North > >> >>East > >> >>Oregon > >> >>FAST > >> >>Net > >> >>mark(at)neofast.net > >> >>----- Original Message ----- > >> >>From: <mailto:[EMAIL PROTECTED]>Alex Wong > >> >>To: <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED] > >> >>Sent: Tuesday, June 10, 2003 11:29 AM > >> >>Subject: RE: [smartBridges] POE, voltage range > >> >>We recommend 18V as max athough can be higher. Pls refer to this > >> >>link for more details. > >> >><http://www.smartbridges.com/new/products/ps.php>http://www.smartbridges.c om/new/products/ps.php>> >> >> >> >> >>We are also in the development stage of having a dyanmic power >> >>supply that can automatically adjsut the power supply based on the >> >>cable sense. Alex >> >>sB Tech Support >> >>-----Original Message----- >> >>From: [EMAIL PROTECTED] >> >>[mailto:[EMAIL PROTECTED] On Behalf Of Mark Koskenmaki >> >>Sent: Wednesday, June 11, 2003 12:03 AM >> >>To: '[EMAIL PROTECTED]' >> >>Subject: [smartBridges] POE, voltage range >> >>What's the upper limit for voltage, for POE on the ABO and APPO? >> >>Thanks >> >>NEOFAST.NET >> >>North >> >>East >> >>Oregon >> >>FAST >> >>Net >> >>mark(at)neofast.net >> >>--- >> >>Outgoing mail is certified Virus Free. >> >>Checked by AVG anti-virus system >> >>(<http://www.grisoft.com>http://www.grisoft.com). >> >>Version: 6.0.488 / Virus Database: 287 - Release Date: 6/5/03 >> > > The PART-15.ORG smartBridges Discussion List > To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe > smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in > the body type unsubscribe smartBridges) Archives: http://198.63.203.6
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