The Digium AEX400 is a half-length PCI-Express x1 modular gateway card for connecting analog telephone stations and analog POTS lines through a PC. It supports a combination of up to four station or trunk modules for a total of 4 lines.

Using Digium's Asterisk® software and standard PC hardware, one can create a telephony environment that includes all of the sophisticated features of a high-end business telephone system.

Using an industry-standard bursting, bus-mastering interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus Technology, the AEX400 eliminates the requirement for external gateways, with industry-leading performance and price. The trunk and station modules are interchangeable, allowing the creation of any combination of interfaces.

The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior voice quality on both trunk and station interfaces. Scaling of this solution is accomplished by adding additional AEX400 or other Digium analog interface cards.

What are FXS and FXO?
Note: The 12V power connector is required for the operation of FXS modules. It is not required for the operation of FXO modules.

The naming convention for the AEX400 bundles is as follows: AEX4 X Y B / E.

• "AEX4" denotes that the card is AEX400
• "X" denotes the number of FXS modules
• "Y" denotes the number of FXO modules
• "B" indicates that this product is a bundle without Echo Cancellation.
• "E" indicates that this product is a bundle with Echo Cancellation

Please note: On the AEX400, one module is equal to 4 ports. The "X" and "Y" denote modules, NOT ports.

Select the card configuration you require for your Asterisk PBX from the drop downs under BUY tab. Please use the table as a guide.

Downloads

Installation Guide (PDF)

Datasheet (PDF)

More Information

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