I need to ask, to refresh, is the aux power connector on the TDM400P card *only* to power the ringer on any analog phones/devices on the system? Can I still use this board, to "terminate" POTS lines and use all SIP Phones? Due to circumstances, I end up with a 1u server that has no aux power connectors available. I "have to" use this server, so am considering abandoning the analog phones and using all SIP. IIRC, the aux power *is* only to power ringers. joe a.
Joe Acquisto wrote:> I need to ask, to refresh, is the aux power connector on the TDM400P card *only* to power the ringer on any > analog phones/devices on the system? > > Can I still use this board, to "terminate" POTS lines and use all SIP Phones? >Yes, you only need to connect a power supply if you have FXS boards.> Due to circumstances, I end up with a 1u server that has no aux power connectors available. I "have to" use this server, so am considering abandoning the analog phones and using all SIP. > > IIRC, the aux power *is* only to power ringers. >I don't remember if it is also needed to provide the potential for the line as well, but I cat testify to the fact that you can comfortably run a TDM400P with 4 FXO boards on it and nothing plugged into the PSU header.> joe a.
Joe Acquisto wrote:> I need to ask, to refresh, is the aux power connector on the TDM400P card *only* to power the ringer on any > analog phones/devices on the system? > > Can I still use this board, to "terminate" POTS lines and use all SIP Phones? > > Due to circumstances, I end up with a 1u server that has no aux power connectors available. I "have to" use this server, so am considering abandoning the analog phones and using all SIP. > > IIRC, the aux power *is* only to power ringers. > > joe a. >Correct, it is to provide the ringing voltage on the FXS modules. For systems without internal molex connectors available, there is another option. Digium has created an externally powered supply that can be used with these cards. http://www.digium.com/en/products/hardware/analogpwr.php -- Jason Parker Digium