[Asterisk-Users] Don't forget the TDM400P power connection

[Tom Walsh]

The way it was explained to me is that the voltages required to generate the
ringer singals is quite high, so an external power feed is required.

Tom Walsh

::Could someone elaborate on this a little? I wasn't aware that this was
::necessary.
::
::Quoting Steve Haehnichen <s-asterisk at trix.com>:
::
::> I'm a newbie, not afraid to admit it.  I tried to install my TDM400P
::> without the auxilliary (drive) power connection and got this failure
::> when loading the wcfxs module:
::>
::>    Freshmaker version: 63
::>    Freshmaker passed register test
::>    ProSLIC on module 0 failed to powerup within 510 ms
::>    Unable to do INITIAL ProSLIC powerup on module 0
::>    Module 0: Not installed
::>    Module 1: Not installed
::>    Module 2: Not installed
::>    Module 3: Not installed
::>
::> A search of the archives turned up nothing, so hopefully it will show
::> this message now. :)
::>
::> Apparently, this is what happens if a power cable is not connected to
::> the side of the card.  I added that connection, and now it probes
::> normally:
::>
::>    Freshmaker version: 63
::>    Freshmaker passed register test
::>    Module 0: Initialized
::>    Module 1: Not installed
::>    Module 2: Not installed
::>    Module 3: Not installed
::>    Found a Wildcard FXS: Wildcard TDM400P REV E (4 modules)
::>    Registered tone zone 0 (United States / North America)
::>
::> There was probably a memo somewhere explaining the power socket, but I
::> didn't get it.