With pressure from north of the border and beyond, Digium has finally announced the new AEX800 Line of analog telephony hardware that supports PCI- E also known as PCI Express.
As you may know, While in theory PCI Express can offer enhanced performance over PCI-X, it is important to know that AEX800 was not developed to replace PCI-X versions of the 8 Port cards (TDM800P) but to enhance the depth of product offered at Digium.
Origionally PCIe was used in high-speed display adapters, and intending to eventually replace the PCI and AGP buses entirely, PCI Express was designed to match the higher speeds of today's CPUs. It can accommodate Gigabit and 10 Gigabit Ethernet and even support chip-to-chip transfers.
This brings us to what PCIe as a system interface is all about and why Digium has chosen it for their new product line; it is not necessarily being faster than PCI-X, but rather being simpler.
As you may know, While in theory PCI Express can offer enhanced performance over PCI-X, it is important to know that AEX800 was not developed to replace PCI-X versions of the 8 Port cards (TDM800P) but to enhance the depth of product offered at Digium.
Origionally PCIe was used in high-speed display adapters, and intending to eventually replace the PCI and AGP buses entirely, PCI Express was designed to match the higher speeds of today's CPUs. It can accommodate Gigabit and 10 Gigabit Ethernet and even support chip-to-chip transfers.
This brings us to what PCIe as a system interface is all about and why Digium has chosen it for their new product line; it is not necessarily being faster than PCI-X, but rather being simpler.
Rather than the shared, parallel bus achitechture of PCI, the PCIe interface provides a high-speed, switched architecture. Each PCI Express link is a serial communications channel made up of two differential wire pairs that provide 2.5 Gbits/sec in each direction and as many 32 of these "lanes" may be combined in x2, x4, x8, x16 and x32 configurations, creating a parallel interface of independently controlled serial links. The bandwidth of the switch backplane determines the total capacity of a PCI Express implementation.Hence there are more and more professional server/workstation class chipsets that put emphasis on PCI Express, because having bandwidth dedicated to each device is appealing.
Now for the "real world comparison"
Now for the "real world comparison"
The Digium AEX844B
Digiums TDM844B
Digiums TDM844B
You'll notice that the motherboard facing edge device on the Digium AEX844B card is much smaller than that of its TDM844B cousin.
PCIe Factoid...
PCIe Factoid...
Originally called "Third Generation I/O" (3GIO), PCI Express is software compatible with PCI, however it is not plug compatible.
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1 Comments:
Howdy,
Just AEX800.
No "P."
Cheers.
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