[EMAIL PROTECTED] wrote: > I've tried a newer 2.4ghz set, a cheap bargain set. They both > ring fine when connected up to a TDM400 FXS port.
OK, so the sets check out. > The Sipura doesn't fluctuate from 100VAC, regardless of > whether it thinks it's ringing or not. Something's not right there. If there's 100 volts on the line, the set should be expected to ring constantly (i.e. no on/off duration). If you want, you can stop by the dungeon here and we'll hook it up to some testing gear I have and see what's wrong with it. Bring the phones too, just to be sure. Jim. > On Tue, 19 Jul 2005, Jim Van Meggelen wrote: > >> [EMAIL PROTECTED] wrote: >>> The connection goes directly from the Sipura to the handset >>> over a standard 6ft grey cable. I've tried a few different >>> cables. >> >> OK. Just ruling out an impairment somewhere in the wiring. >> >>> With no handset connected, it sitting at 100VAC. I guess the >>> ring generator isn't working. >> >> If you're getting 100VAC, the ring generator *is* working. >> You should be seeing 100VAC for two seconds, then 0 (or >> minimal) AC voltage for 4 seconds, then 100 for 2, 0 for 4, >> etc. A ring cycle is six seconds - 2 on, 4 off. >> >> You've tried different sets? >> >> Jim. >> >> >>> On Tue, 19 Jul 2005, Jim Van Meggelen wrote: >>> >>>> [EMAIL PROTECTED] wrote: >>>>> It does default to 25hz, but switching it to 20hz didn't >>>>> make a difference. >>>> >>>> It was a long shot. Still. 20Hz is correct, so might as >>>> well leave it that way >>>> >>>>> I'm an absolute novice when it comes to the electrical >>>>> side of POTS. How should I be measuring the voltage? In >>>>> parallel with a handset? >>>> >>>> No need to have anyting on the end of the line. Connect a >>>> voltmeter to tip and ring (doesn't matter which polarity >>>> you connect - one probe to each contact), and go from >>>> there. The voltage will be there regardless of whether any >>>> phones are connected to the circuit. If you cannot detect >>>> any voltage (or it's well below 70VAC), that'll explain why >>>> the sets won't ring. >>>> >>>> Are you plugging directly into the FXS port on the Sipura? >>>> No cabling or anything involved? >>>> >>>> Jim. >>>> >>>> >>>> >>>>> On Tue, 19 Jul 2005, Jim Van Meggelen wrote: >>>>> >>>>>> Simon P. Ditner wrote: >>>>>>> Is there some trick I'm missing that's required to get >>>>>>> the Sipura 1001 FXS to ring a handset? >>>>>>> >>>>>>> - I reset the unit to factory defaults >>>>>>> - I put in the asterisk connection settings, and it >>>>>>> registers >>>>>>> - I call it from another phone, and see it come through >>>>>>> asterisk >>>>>>> - web interface of the sipura reports that the line is >>>>>>> ringing >>>>>>> - No handset I plug into the bugger will ring, though the >>>>>>> call is there if I pick it up >>>>>> >>>>>> Change the ringing frequency from 25Hz to 20Hz. Some of >>>>>> the Sipuras default to 25Hz, but in NA the norm is 20Hz. >>>>>> It generally shouldn't make a difference, but on some >>>>>> phones (especially older ones) it might. >>>>>> >>>>>> Also, check with a volt meter that you're getting ringing >>>>>> voltage (roughly 70-90VAC). Possibly the ring generator >>>>>> in the unit is blown. >>>>>> >>>>>> Jim. >>>>>> >>>>>> >>>>>> -- >>>>>> Jim Van Meggelen >>>>>> [EMAIL PROTECTED] >>>>>> http://www.oreillynet.com/pub/au/2177 >> >> -- >> No virus found in this outgoing message. >> Checked by AVG Anti-Virus. >> Version: 7.0.323 / Virus Database: 267.9.1/51 - Release Date: >> 18/07/2005 >> >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.9.1/51 - Release Date: 18/07/2005
