[Asterisk-Users] TDM400P power supply

[Ricardo Peironcely]

Thanks,

I will try with external power supply.

Rpr

Rich Adamson escribió:

>>I've a problem with a TDM400P digium card. 
>>
>>My box has no molex connectors for power supply. Simply has no any power 
>>connector, because is not a normal PC) And I need to know if i can use a 
>>external supply. But I've several questions:
>>
>>1.- Are both circuits (PCI-power and Phone-line-power) electrically 
>>separated?
>>2.- A little voltage difference can create an undesired internal current?
>>3.- What are the current needs for this supply?
>>
>>I need the power supply because I want to use both FXS and FXO ports. 
>>And I can't use a Y cable, because I've no molex connectors.
>>    
>>
>
>Been discussed several times before and you should have found the
>answer using google.
>
>The TDM connector is only used for the fxs modules, and then only the
>+12 volt lead on that connector (and ground) is actually wired to 
>anything on the TDM board. So, there is no conflict with internal 
>system voltages.
>
>Yes you can use an external 12 volt power supply.
>
>The 12 volts is only used on the card to generate ringing voltage to
>the fxs modules. No ringing, no significant current draw. Just about
>any 12 volt supply should do, however I think I'd be looking for 
>one that is at least somewhat regulated. No other idea on the power
>supply specs.
>
>
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