[asterisk-users] seeking hardware recommendation PCI versus PCI Express E1 card (te407p vs te420bf)

[Kevin P. Fleming]

Rajesh Kumar Mallah wrote:

> to summarise is TE407P in anyway inferior to TE420BF Card ?
> does TE407P saturate the 33mhz PCI bus when all voice channels are used ?

There is no effective performance difference between using the PCI-X and
PCI-E versions of these cards; the cards are essentially identical, with
the addition of a PCI-Express bridge on the PCI-E card.

Keep in mind that even if you use 4 E1 circuits with the card, the total
bandwidth consumption of card is approximately 1 megabyte per second (4
times 2 megabits per second), which is drastically below the PCI bus
bandwidth of 132 megabytes per second (33 MHz bus with 32-bit
transfers). No quad-T1/E1 card will ever be able to saturate a PCI bus,
especially not PCI-X or PCI-E.

-- 
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)