[asterisk-users] Dual- or Quad ISDN cards for PCI-X Slots

[Eliezer Croitoru]

On 29/05/2012 15:18, Kevin P. Fleming wrote:
> On 05/29/2012 01:48 AM, Michelle Konzack wrote:
>> No, it does not fit, since PCI 2.0 is 5V and has only one notch.
>>
>> PCI 2.1, 2.2. and 2.3 do have two notches, because they are 3.3V.
>>
>> In clear, you can not insert old 5V PCI 2.0 cards into a 3.3V PCI-X slot
>
> Ahh, your real issue is voltage then, not the PCI specification that the
> card is compliant with. Cards can be compliant with any of the PCI
> versions you mentioned and still be 5V only, 3.3V only, or 5V/3.3V
> compatible.
>
> All modern ISDN BRI cards usable with Asterisk are both 5V and 3.3V
> compatible, but as you say, they aren't available in your price range.
>
it seems like this picture:
http://upload.wikimedia.org/wikipedia/commons/6/6f/PCI_Keying.png

will clear every doubt about pci-x and other pci.

-- 
Eliezer Croitoru
https://www1.ngtech.co.il
IT consulting for Nonprofit organizations
eliezer <at> ngtech.co.il