Digium AEX2421B 8 FXS 4 FXO PCI Express Card

Digium AEX2421B is a modular telephony card that connects analog phone lines and analog station devices to Asterisk-based IP phone systems. This model combines an AEX2400 base card with two S400M FXS modules and one X400M FXO module. The card is a cost-effective and scalable solution for reducing infrastructure like gateways, while integrating analog phones and lines with your VoIP system.

Digium AEX2400 is a base card with room for six FXO/FXS modules in total, so you can add further FXO or FXS port modules to customize the card to fit your phone system. It is a full-length PCI Express card. Digium S400M is a quad FXS module that provides four station line interfaces to connect to analog devices. Digium X400M is a quad FXO module that provides four trunk line interfaces to connect to the PSTN.

Digium AEX2421B comes with a 5-year manufacturer warranty.

Digium AEX2421B Telephony Card Quick Specs:

• Base Card: AEX2400
  • Maximum Modules: 6
  • Maximum Ports: 24
• Form Factor: PCIe 1.0+
• Connector: 50-pin RJ21
• FXO Modules: 1
• FXO Ports: 4
• FXS Modules: 2
• FXS Ports: 8
• Echo-Cancellation: no

Digium AEX2421B Analog Card (8 FXS, 4 FXO) Package Contents:

• Digium AEX2400 analog telephony card
• 2x Digium S400M FXS module
• 1x Digium X400M FXO module