RE: [Asterisk-Users] Line Override Device
This power failure thing does not have to be complicated. A few solutions come to mind: 1) A 3,5,12 (whatever is needed) power supply (wall wart)used with a relay (DPDT). When the wall wart has power, the computer takes the call. When power fails, the POTS line falls in to place. Now, this does not delay while the computer is booting up. 2) A basic stamp computer - about $25-30. It has 8 programmable i/o pins that will drive relays. One pin monitors either a wall wart or 5v from one of the plugs on your computer's power supply. When pin 1 goes low (no power) relay kicks in to bypass computer and connect POTS line direct. When power returns program jumps to a sleep or delay statement for xMINS until computer boots. And then releases relay for normal operation. www.parallaxinc.com and resellers. James Taylor [EMAIL PROTECTED] 903-793-1953 -- Original Message -- From: Steven Critchfield [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] Date: 13 Jul 2003 17:35:55 -0500 On Sun, 2003-07-13 at 15:55, John Laur wrote: You can build a UPS for that, but the better option here is to attach a phone to the phone side of the X100P that is always connected to the POTS line so that even when the computer goes down you can send and receive calls. If you don't want it to ring *unless* the power is out, you could wire it through a normally-closed relay hooked to something simple like the parallel port (there are schematics everywhere for this). When the computer is off, the relay closes, and the phone rings with the line. Heck, if you have an analog set on FXS you want to ring when power goes, you could get a SPDT relay and wire one line into open and one line into closed and switch between them. If you don't care much about incoming calls during the outage, just plugging a phone into the other end of X100p and turning off the ringer will do the trick. It is easier to wire to a 12 volt(yellow) wire off of the PSU, plus this lets you drive larger relays. The specs are available on the net to show you how to wire POE (Power over ethernet). In fact I did my own so I can use the 7960 before we found a suitable wall wart. Basicaly all I did was punch down a keystone with the ethernet data lines, then punched down the power lines so that one side had power and the other didn't so I didn't chance blowing up my switch that was made before they thought of doing POE. I used the power supply from a CAC AB1 that had the ringer module broke on it. It produces 1amp of 48volts and was more than adequate for the 7960. If I had a lot of phones to power, I have a 6amp 48volt PSU from a Premisys channel bank that I picked up at a hamfest for $10. If you do this and plug anything other than the 7960 into it like a NIC you can easily damage it! (google for 'etherkiller' for more) Real power over ethernet injectors provide power only to devices that 'ask' for it, but for small setups they are very much more expensive than the price of a UPS that could power the 7960 for hours (a $30 ups running only the 7960 should go for at least a couple hours) - Compare this to paying $100+ per port for PoE injectors! Putting 'raw' 48V on the Ethernet in an office environment where someone else might accidentally plug something into the wall jack incorrectly would be a disaster! Of course there are some cost savings associated with not having to maintain and upkeep 48 UPS's for 48 phones that make PoE worth it, but I'd say that for less than 12 users it becomes harder to justify. etherkillers are 110 volts AC to data pins, POE is 48 volts DC on non data pins. This should not blow devices that are not expecting PoE. Think about it, how would a device ask for power if it doesn't have power to make the request? -- Steven Critchfield [EMAIL PROTECTED] ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users -- James Taylor [EMAIL PROTECTED] 903-793-1953 -- ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
X100P mod or USB relay box, RE: [Asterisk-Users] Line Override Device
The best solution would be an enhancement to the X100P card. If the 2nd RJ jack was a pass through for the line except when the card had power and was initialized. Some kind of watchdog functionality would also be nice so that if, for example, Asterisk dies then pass through functionality would take effect after n seconds. This would probably mean adding a relay to the board which would raise to cast a little. But, as the original poster indicated this is critical for a serious system. An alternative would be an extra relay box, maybe powered by USB. One mode could be to switch based on presence of power, another mode could require periodic watchdog pings via the USB. I always wanted to build something using a USB flavored PIC... I can see this for small offices (like ours). We have 4 incoming lines in a hunt group. If Asterisk is not running I want one of those lines to ring the receptionist (maybe using a simple dedicated phone since they'd otherwise have an IP phone) and the others looped for busy. I can see a box with USB and 12 RJ jacks (4 x (1 in, 2 outs)) to make that work. Would anyone buy a product like that? -reed At 07:12 AM 7/14/2003 -0500, jltaylor wrote: This power failure thing does not have to be complicated. A few solutions come to mind: 1) A 3,5,12 (whatever is needed) power supply (wall wart)used with a relay (DPDT). When the wall wart has power, the computer takes the call. When power fails, the POTS line falls in to place. Now, this does not delay while the computer is booting up. 2) A basic stamp computer - about $25-30. It has 8 programmable i/o pins that will drive relays. One pin monitors either a wall wart or 5v from one of the plugs on your computer's power supply. When pin 1 goes low (no power) relay kicks in to bypass computer and connect POTS line direct. When power returns program jumps to a sleep or delay statement for xMINS until computer boots. And then releases relay for normal operation. www.parallaxinc.com and resellers. James Taylor [EMAIL PROTECTED] 903-793-1953 ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: X100P mod or USB relay box, RE: [Asterisk-Users] Line Override Device
At 11:34 AM 7/14/2003 -0500, Steven Critchfield wrote: One wouldn't use a X100P in a serious system. How so? I assume you're talking about scale and not reliability. We get a relatively small number of calls but any one of them could be worth a large stack of cash for our business. A stinky phone system can make us look bad. The main reason I'm looking at Asterisk is to improve the reliability and control over our phone system. All the other great things it provides really are secondary for the folks who pay my salary. Only if you aren't pulling power from the USB bus. There isn't much there. There may be just enough depending on how many relays are needed, but it would be too close. I agree, better off not trying to get power from there. I do like the idea of some kind of watchdog functionality. Simply having power isn't sufficient to trust that a call is getting routed. -reed ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: X100P mod or USB relay box, RE: [Asterisk-Users] Line Override Device
At 12:57 PM 7/14/2003 -0500, you wrote: This makes me think that you could take this a step further too and incorporate an external power supply and a relay that could interupt mains power so that you could power cycle the PC if the watchdog had power to operate and the PC wasn't responding or generating pings. i like that -reed ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: X100P mod or USB relay box, RE: [Asterisk-Users] Line Override Device
The Voicetronix Openline6 and Openline12 cards have the functionality you want built in. You can configure (jumpers) which ports are FXO and which are FXS (in groups of 2 IIRC) and 1st FXO goes to 1st FXS etc. in case of power failure. Apparently these cards work with Asterisk (chan_vpb). I think cost is AU$1500 and AU$3000 for 6 and 12. cheers, Wooody On Mon, Jul 14, 2003 at 02:17:59PM -0400, Reed Wade wrote: At 12:57 PM 7/14/2003 -0500, you wrote: This makes me think that you could take this a step further too and incorporate an external power supply and a relay that could interupt mains power so that you could power cycle the PC if the watchdog had power to operate and the PC wasn't responding or generating pings. i like that -reed ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users -- Woody ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Line Override Device
Please understand that most mailing lists don't like HTML messages, and specifically when your chosen font size makes the text way to small to be read. The font size may be fine for your screen, but in the big wide world of the net you will find people who use bigger monitors and fonts tuned specifically for normal font sizes to be just readable at the normal sitting distance from their monitor. When your mailer adjusts the size to smaller than normal, it becomes a problem. On Sun, 2003-07-13 at 13:16, Shawn L. Djernes wrote: Hello, I am trying to solve a problem that I can foresee when I deploy Asterisk into a few SOHO situations soon. In Nebraska and in my area of Western Pennsylvania we have violent thunderstorms in spring and summer and sometimes very heavy wet snow in Winter. Both type of event will take out the power of a period of 30sec to 36-hours. So no UPS system would be able to handle a system for over an hour. So what I am wanting to build or buy is a device that when normal power is on and we have battery output on a FXS that the line dumb analog phone talks to asterisk, but when the UPS has shutdown and our phone system goes down, thus no battery signal on the line it switches that same dumb analog phone to the outside Analog trunk. This was the users can make and receive any emergency calls while the power is out. You can build a UPS for that, but the better option here is to attach a phone to the phone side of the X100P that is always connected to the POTS line so that even when the computer goes down you can send and receive calls. I have the basic concept of how this thing should work but not enough knowledge of telephone electronics to build it. I think this should be an essential part of any PBX that supports analog lines and would be willing to pay a reasonable price for it. Next sort of on the same topic. Does anyone have a diagram or know of some where you can buy a single or dual port Cisco power inserter. I want to put the Power Adapter for my 7960 over on the UPS so that the phone on my desk doesn't die right away when the power flickers or goes out. My battery a APC Back UPS Pro 650 holds the Asterisk server (Athlon 850 w/ 384 mb ram, X100P, Netgear FA311 10/100, Kinkston 10mb ne2k-pci clone, S3 Savage clone video, IBM 15GB, IBM 60GB, IBM 80GB IDE drives and four fans) Westtel DSL modem, Netgear 10mb hub (outside interfaces), Intel Pro 8-port managed switch (inside interfaces) for 25-30 minutes and that is usually enough for the power company equipment to reset around here. The specs are available on the net to show you how to wire POE (Power over ethernet). In fact I did my own so I can use the 7960 before we found a suitable wall wart. Basicaly all I did was punch down a keystone with the ethernet data lines, then punched down the power lines so that one side had power and the other didn't so I didn't chance blowing up my switch that was made before they thought of doing POE. I used the power supply from a CAC AB1 that had the ringer module broke on it. It produces 1amp of 48volts and was more than adequate for the 7960. If I had a lot of phones to power, I have a 6amp 48volt PSU from a Premisys channel bank that I picked up at a hamfest for $10. BTW, for the UPS, we have some powerware UPSs that have plugs for external batteries. In our former server room we have one with 5 car battery sized batteries attached to it. We feel we had about a 10 hour run time. -- Steven Critchfield [EMAIL PROTECTED] ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Line Override Device
Sorry about that. I had just got rid of Outlooks annoying feature of using MS Word as the editor and so the font size should have been about 14pt Arial. I know this because I am legally blind (meaning that I can't read anything under 14pt) but looks like it screwed up again. Shawn -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Steven Critchfield Sent: Sunday, July 13, 2003 15:10 To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] Line Override Device Please understand that most mailing lists don't like HTML messages, and specifically when your chosen font size makes the text way to small to be read. The font size may be fine for your screen, but in the big wide world of the net you will find people who use bigger monitors and fonts tuned specifically for normal font sizes to be just readable at the normal sitting distance from their monitor. When your mailer adjusts the size to smaller than normal, it becomes a problem. On Sun, 2003-07-13 at 13:16, Shawn L. Djernes wrote: Hello, I am trying to solve a problem that I can foresee when I deploy Asterisk into a few SOHO situations soon. In Nebraska and in my area of Western Pennsylvania we have violent thunderstorms in spring and summer and sometimes very heavy wet snow in Winter. Both type of event will take out the power of a period of 30sec to 36-hours. So no UPS system would be able to handle a system for over an hour. So what I am wanting to build or buy is a device that when normal power is on and we have battery output on a FXS that the line dumb analog phone talks to asterisk, but when the UPS has shutdown and our phone system goes down, thus no battery signal on the line it switches that same dumb analog phone to the outside Analog trunk. This was the users can make and receive any emergency calls while the power is out. You can build a UPS for that, but the better option here is to attach a phone to the phone side of the X100P that is always connected to the POTS line so that even when the computer goes down you can send and receive calls. I have the basic concept of how this thing should work but not enough knowledge of telephone electronics to build it. I think this should be an essential part of any PBX that supports analog lines and would be willing to pay a reasonable price for it. Next sort of on the same topic. Does anyone have a diagram or know of some where you can buy a single or dual port Cisco power inserter. I want to put the Power Adapter for my 7960 over on the UPS so that the phone on my desk doesn't die right away when the power flickers or goes out. My battery a APC Back UPS Pro 650 holds the Asterisk server (Athlon 850 w/ 384 mb ram, X100P, Netgear FA311 10/100, Kinkston 10mb ne2k-pci clone, S3 Savage clone video, IBM 15GB, IBM 60GB, IBM 80GB IDE drives and four fans) Westtel DSL modem, Netgear 10mb hub (outside interfaces), Intel Pro 8-port managed switch (inside interfaces) for 25-30 minutes and that is usually enough for the power company equipment to reset around here. The specs are available on the net to show you how to wire POE (Power over ethernet). In fact I did my own so I can use the 7960 before we found a suitable wall wart. Basicaly all I did was punch down a keystone with the ethernet data lines, then punched down the power lines so that one side had power and the other didn't so I didn't chance blowing up my switch that was made before they thought of doing POE. I used the power supply from a CAC AB1 that had the ringer module broke on it. It produces 1amp of 48volts and was more than adequate for the 7960. If I had a lot of phones to power, I have a 6amp 48volt PSU from a Premisys channel bank that I picked up at a hamfest for $10. BTW, for the UPS, we have some powerware UPSs that have plugs for external batteries. In our former server room we have one with 5 car battery sized batteries attached to it. We feel we had about a 10 hour run time. -- Steven Critchfield [EMAIL PROTECTED] ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Line Override Device
You can build a UPS for that, but the better option here is to attach a phone to the phone side of the X100P that is always connected to the POTS line so that even when the computer goes down you can send and receive calls. If you don't want it to ring *unless* the power is out, you could wire it through a normally-closed relay hooked to something simple like the parallel port (there are schematics everywhere for this). When the computer is off, the relay closes, and the phone rings with the line. Heck, if you have an analog set on FXS you want to ring when power goes, you could get a SPDT relay and wire one line into open and one line into closed and switch between them. If you don't care much about incoming calls during the outage, just plugging a phone into the other end of X100p and turning off the ringer will do the trick. The specs are available on the net to show you how to wire POE (Power over ethernet). In fact I did my own so I can use the 7960 before we found a suitable wall wart. Basicaly all I did was punch down a keystone with the ethernet data lines, then punched down the power lines so that one side had power and the other didn't so I didn't chance blowing up my switch that was made before they thought of doing POE. I used the power supply from a CAC AB1 that had the ringer module broke on it. It produces 1amp of 48volts and was more than adequate for the 7960. If I had a lot of phones to power, I have a 6amp 48volt PSU from a Premisys channel bank that I picked up at a hamfest for $10. If you do this and plug anything other than the 7960 into it like a NIC you can easily damage it! (google for 'etherkiller' for more) Real power over ethernet injectors provide power only to devices that 'ask' for it, but for small setups they are very much more expensive than the price of a UPS that could power the 7960 for hours (a $30 ups running only the 7960 should go for at least a couple hours) - Compare this to paying $100+ per port for PoE injectors! Putting 'raw' 48V on the Ethernet in an office environment where someone else might accidentally plug something into the wall jack incorrectly would be a disaster! Of course there are some cost savings associated with not having to maintain and upkeep 48 UPS's for 48 phones that make PoE worth it, but I'd say that for less than 12 users it becomes harder to justify. BTW, for the UPS, we have some powerware UPSs that have plugs for external batteries. In our former server room we have one with 5 car battery sized batteries attached to it. We feel we had about a 10 hour run time. Even a lot of the UPS's that don't have plugs for this stuff can still be run with external batteries if they have a good charge controller that can deal with it. I have seen a lot of weird setups that use car and tractor batteries glommed into APC ups's that run lots of important systems! Go for it if you can justify the risk.. John ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Line Override Device
On Sun, 2003-07-13 at 15:00, Shawn L. Djernes wrote: Sorry about that. I had just got rid of Outlooks annoying feature of using MS Word as the editor and so the font size should have been about 14pt Arial. I know this because I am legally blind (meaning that I can't read anything under 14pt) but looks like it screwed up again. The problem is that pt size isn't a good metric for cross screen setups. Even at that if you look at the source of the HTML that was produced, you would see that it is setting font size=2. -- Steven Critchfield [EMAIL PROTECTED] ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Line Override Device
On Sun, 2003-07-13 at 15:55, John Laur wrote: You can build a UPS for that, but the better option here is to attach a phone to the phone side of the X100P that is always connected to the POTS line so that even when the computer goes down you can send and receive calls. If you don't want it to ring *unless* the power is out, you could wire it through a normally-closed relay hooked to something simple like the parallel port (there are schematics everywhere for this). When the computer is off, the relay closes, and the phone rings with the line. Heck, if you have an analog set on FXS you want to ring when power goes, you could get a SPDT relay and wire one line into open and one line into closed and switch between them. If you don't care much about incoming calls during the outage, just plugging a phone into the other end of X100p and turning off the ringer will do the trick. It is easier to wire to a 12 volt(yellow) wire off of the PSU, plus this lets you drive larger relays. The specs are available on the net to show you how to wire POE (Power over ethernet). In fact I did my own so I can use the 7960 before we found a suitable wall wart. Basicaly all I did was punch down a keystone with the ethernet data lines, then punched down the power lines so that one side had power and the other didn't so I didn't chance blowing up my switch that was made before they thought of doing POE. I used the power supply from a CAC AB1 that had the ringer module broke on it. It produces 1amp of 48volts and was more than adequate for the 7960. If I had a lot of phones to power, I have a 6amp 48volt PSU from a Premisys channel bank that I picked up at a hamfest for $10. If you do this and plug anything other than the 7960 into it like a NIC you can easily damage it! (google for 'etherkiller' for more) Real power over ethernet injectors provide power only to devices that 'ask' for it, but for small setups they are very much more expensive than the price of a UPS that could power the 7960 for hours (a $30 ups running only the 7960 should go for at least a couple hours) - Compare this to paying $100+ per port for PoE injectors! Putting 'raw' 48V on the Ethernet in an office environment where someone else might accidentally plug something into the wall jack incorrectly would be a disaster! Of course there are some cost savings associated with not having to maintain and upkeep 48 UPS's for 48 phones that make PoE worth it, but I'd say that for less than 12 users it becomes harder to justify. etherkillers are 110 volts AC to data pins, POE is 48 volts DC on non data pins. This should not blow devices that are not expecting PoE. Think about it, how would a device ask for power if it doesn't have power to make the request? -- Steven Critchfield [EMAIL PROTECTED] ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
