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

[Kevin P. Fleming]

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.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
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