[EMAIL PROTECTED] wrote: > Hi; > > I'm trying to connect a TDM400P with an FXS module to a Valcom V-9940 > Paging adaptor. This port on the TDM400P was connected to a 2500 Set > and was working I just re-connected it to the Valcom (which > is known to > work on a Telco POTS line) and its not picking up. The > Valcom docs say > it need a minimum of 75 Volts at 20-30 Hz to recognize a > call... So the > question is what ring voltage does the FXS modules on a TDM400P put > out?
Ultimately, that depends on how much current is being drawn, but my multimeter reports about 70V on a 6 foot line cord. Generally, I'd expect an FXS to put out more like 90-110V (that's what my TalkSwitch supplies). -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.10 - Release Date: 10/01/2005 _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users