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09/07/02 07:12
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#28784 - RE: The transformer: Ijaz,
Hi,

How would only ac coupling cause the off hook. I had consulted the off hook mechanism in the modems and as given at <epanorama.net>, they never put a cap in between the transformer and the line.

Yes if we do ac coupling then for off hook purpose we will have to use the resistor across tip and ring as you suggest.

I make sure to avoid overloading the line, by putting a 100 ohm 2 watt resistor in series wiht transformer.

would 10 ma saturate the core, I have no idea on that.

Babar


PS: I am worried whether Shahzad has been able to do something. Man he has got his "export" plans as well......

Craig, I seriously frustrate for want of emoticons to express my feelings sometimes. Do something about that.







List of 23 messages in thread
TopicAuthorDate
8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: localisation            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
DAA            01/01/70 00:00      
RE: DAA            01/01/70 00:00      
RE: Make ur life easy. Shahzad:            01/01/70 00:00      
RE: Just a point. Shahzad:            01/01/70 00:00      
RE: Zarlink            01/01/70 00:00      
RE: 8880 DTMF transceiver and Call Progress            01/01/70 00:00      
RE: Zarlink            01/01/70 00:00      
RE: Babar            01/01/70 00:00      
RE: The transformer: Ijaz,            01/01/70 00:00      
RE: The transformer: Ijaz,            01/01/70 00:00      

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