8 port modular analog PCI-Express x1 3.3V card with 5 Trunk interfaces and HW Echo Can
Digium AEX800 is a world-class eight-port analog board for PCI Express.
The AEX800 board occupies one PCI Express slot and is equipped with 8 RJ-11 connectors. The presence of 8 ports allows you to protect the spacers on the system unit of the same Digium TDM400B and TDM410 boards. In addition, the visibility of the primary RJ-11 sockets eliminates the need for special cables to route lines to the cross-panel and other additional contacts, which ensures reliability in whole.
The same port of the AEX800 is configured and operates independently from other FXO mode or FXS interface, depending on the installation of modules. The AEX800 allows almost any configuration with FXO and FXS ports: the base board has 2 banks, each has 4 analog ports. In one bank you can install either a 4-port module S400M (4 FXS) or X400M (4 FXO), or two single-port modules S110M (1 FXS) or X100M (1 FXO). The use of 4-port modules S400M and X400M is reasonable to achieve maximum capacity. At the same time, the support for single-port modules allows owners of boards based on TDM400P and TDM410 to easily switch to the PCI Express bus by purchasing only the AEX800 base board without additional modules.
The Digium AEX800 board has echo compensation VPMADT032, which makes it possible to increase the clarity of sound without additional calculations on the server. As an alternative option for echo cancellation, you can use the High Performance Echo Cancellation (HPEC) software from Digium. The HPEC algorithm is compatible with the G.168 standard and mutes echo in the range of 16 to 128 ms.
Deciphering the meaning of board models based on AEX800: AEX8PQR, where P means the number of FXS ports, Q means the number of FXO ports. The suffix 'B' indicates that the product is a set of boards and modules, and 'E' means that this set includes the VPMADT032 echo damping module. A special rank is given to boards with 4 new ports organized by S110M or X100M modules: instead of 0, the name of the board contains the letter S , which means those whose port banks are occupied by single-port modules.
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