Re: [asterisk-users] phone as control interface (was99bottlesof beer)
has anyone actually been satisfied with the performance of these powerline signalling devices ? Universal Powerline Bus is a vast improvement over the original X10. I believe the X10 devices used a 4V signal during the zero crossing point of the AC voltage to transmit 1 bit. Needless to say this made X10 slow, susceptible to line noise and not very reliable. IIRC X10 is only 75% reliable. By contrast, UPB is 20-40 times faster, it uses a higher signaling voltage so line noise isn't a big factor any more and has the advantage of controlling 250 times more devices than X10. This will help to prevent stray signals from the neighbors controller from accidentally controlling your devices. UPB is supposed to be 99.9% reliable with a latency of less than 100 milliseconds. Granted that still leaves a tenth of a percent of uncertainly. However that is without resorting to filters, couplers and the like. Granted in an existing situation there may not be a way to run more wires, but I evaluated them a while back and decided to stay away. You may want to take another look at them. Just like Asterisk has made great strides since the release of 0.7, UPB has brought the quality level way up. Of course this higher quality also has a higher price. John ___ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] phone as control interface (was99bottlesof beer)
- Original Message - From: John Faubion [EMAIL PROTECTED] To: Asterisk Users Mailing List - Non-Commercial Discussion asterisk-users@lists.digium.com Sent: Tuesday, October 16, 2007 4:11 AM Subject: Re: [asterisk-users] phone as control interface (was99bottlesof beer) Does anyone know of such a device that I can use over a network? It would be a pain to run a USB cable. I am thinking of devices that are like: I think your missing the key feature of these devices, UPB/X10. UPB and X10 are communication protocols that runs across the electrical wiring in the home. The 1132 box can be programmed using a USB cable to your computer but it doesn't have to remain connected via USB to control the lights and outlets using X10. Additionally you only have to connect one PC-UPB/X10 controller to control the other UPB/X10 devices. You will have to install more devices to make it all work but the commands come across the house wiring. John John, Thanks for the clarification. I understood it that every device needed to be connected via USB. I would still want to use a product that worked over Ethernet so that I can use my asterisk server that is in a colo center and control multiple locations. ___ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] phone as control interface(was99bottlesof beer)
- Original Message - From: John Faubion [EMAIL PROTECTED] To: Asterisk Users Mailing List - Non-Commercial Discussion asterisk-users@lists.digium.com Sent: Tuesday, October 16, 2007 9:46 AM Subject: Re: [asterisk-users] phone as control interface(was99bottlesof beer) has anyone actually been satisfied with the performance of these powerline signalling devices ? Universal Powerline Bus is a vast improvement over the original X10. I believe the X10 devices used a 4V signal during the zero crossing point of the AC voltage to transmit 1 bit. Needless to say this made X10 slow, susceptible to line noise and not very reliable. IIRC X10 is only 75% reliable. By contrast, UPB is 20-40 times faster, it uses a higher signaling voltage so line noise isn't a big factor any more and has the advantage of controlling 250 times more devices than X10. This will help to prevent stray signals from the neighbors controller from accidentally controlling your devices. UPB is supposed to be 99.9% reliable with a latency of less than 100 milliseconds. Granted that still leaves a tenth of a percent of uncertainly. However that is without resorting to filters, couplers and the like. Granted in an existing situation there may not be a way to run more wires, but I evaluated them a while back and decided to stay away. You may want to take another look at them. Just like Asterisk has made great strides since the release of 0.7, UPB has brought the quality level way up. Of course this higher quality also has a higher price. John Anyone on the list interested on working on a project where we can create devices that work over Ethernet ? ___ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
