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Digium AEX844B Information:
The Digium AEX844B is a half-length
PCI-Express 1.0-compliant, 8 port analog interface card. It supports
combinations of station and/or trunk/line modules for a total of
eight (8) interfaces.
Like our PCI-based TDM800P, the AEX844B provides an industry first
with 8 standard two-wire, RJ-11 interfaces on a single card bracket.
This eliminates the need for multiple brackets, external dongles, or
splitters. In doing so, the AEX800 reduces part complexity, cable
clutter, and points of failure.
The AEX844B contains two module banks. Each bank supports up to four
analog interfaces and may be filled either with one standard Digium®
quad station (S400M) or line/trunk (X400M) analog module, or up to
two standard Digium single analog station (S110M) or line/trunk
(X100M) modules, enabling the creation of any combination of ports
The optional Digium VPMADT032 hardware echo cancellation module
provides 1024 taps (128 milliseconds) of echo cancellation for
superior echo cancellation on both types of analog interfaces.
If the hardware echo cancellation module is not installed, the
AEX800 may be used in conjunction with Digium's High Performance
Echo Cancellation (HPEC) software, a commercial and toll quality
hybrid echo cancellation solution.
Digium's HPEC provides 16ms to 128ms of selectable near-end ITU
G.168 compliant echo cancellation in software.
Using this card in concert with Digium's Asterisk® software,
standard PC hardware, and the Linux® OS, you can create SME or SOHO
telephony environments capable of satisfying the needs of small or
medium business applications at an industry-leading price.