I sent it back for repair/replacement. They decided it was not repairable and sent another. The new one does ring the phone (once) much as the old one did (at one time) but then it crashes just like the old one. I suspect that if I keep ringing the phone whatever failed completely on the old one will fail on the new one. I guess people don't even test with mechanical ringers anymore...
Dan Lanciani ddl@danlan.*com
You might be able to adjust the ringer to accept a lower ring voltage. Check out this link
Mike Sandman's web site has quite a few devices available that can amplify the ring voltage if it is absolutely needed.
Like a 1A2 Shoebox KSU - it senses ring voltage and generates it's own locally to run the tel set and external ringers. The only limit is how many ringers the 130VAC 20Hz supply in the KSU can drive, and they do make BIG supplies for big premises.
Anyone know the REN for the input on a Western Electric 400G card?
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In article , snipped-for-privacy@nowhere.com (GlowingBlueMist) writes: | Dan Lanciani wrote: | > I sent it back for repair/replacement. They decided it was not | > repairable and sent another. The new one does ring the phone (once) | > much as the old one did (at one time) but then it crashes just like | > the old one. I suspect that if I keep ringing the phone whatever | > failed completely on the old one will fail on the new one. I guess | > people don't even test with mechanical ringers anymore... | >
| > Dan Lanciani | > ddl@danlan.*com | | You might be able to adjust the ringer to accept a lower ring voltage.
The current device is making the phone ring but it is crashing thereafter. The sequence is that I hear a relay click in the Cell2Tel, the phone rings once, I hear another relay click in the Cell2Tell, and then the Cell2Tel reboots. It's possible that the residual charge on the ringer's capacitor is too much for whatever the line is switched back too after the ring generator. It's clearly a pretty poor design.
Dan Lanciani ddl@danlan.*com
I've got two shoeboxes (a 550 and a 550C, with the plastic lift off cover rather than a hinged door) and none of the 400-type cards installed specify an REN. And none of the 1A2 BSP handbooks I've got reveal that number, either. Maybe 400 cards got invented before REN was thought up and WE never went back to compute or measure that particular characteristic?
Al
A few weeks ago I connected an original 500 set from 1951 to an FXS port hosted by an 'Internet Phone Jack (IXJ)' card in my asterisk box; it rang it with gusto. I may try various Command Communications line sharing boxes too, with increasing ringer loads, until they fail since, oddly, the documentation that I have is silent regarding ringing capacity. I seem to remember some sizable magnetics in these boxes, but don't remember what is on the IXJ card; wouldn't a tuned primary of a step up transformer in the circuit of a gated oscillator be an adequate ring generator? The insides of the few VoIP ATAs that I have inspected don't have much iron on the PCB ;)
Michael
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