PRODUCT OVERVIEW8 port modular analog PCI 3.3/5.0V card, no interfaces and HW Echo Can. The Digium 1A8A01F from the A8 Series is a PCI card with Echo Cancellation for 3.3/5.0V with 0-FXS/0-FXO and 8 ports. The A8A-series PCI cards from Digium are scalable to up to eight connections. Interchange FXO and FXS modules, as either two quad-port modules or up to four single-port modules. The Digium 1A8A01F PCI card is compatible with Asterisk, allowing connectivity for analog phones, or connect an analog PBX to a VoIP service. Carrier-grade echo cancellation gives this base PCI card enhanced audio.PRODUCT TYPENetworking AccessoriesKEY FEATURES• One (1) - eight (8) analog ports• PCI or PCI Express bus architectures• Combine line (FXO) and station (FXS) modules• Accepts up to four (4) single-port modules• Optional DSP-based carrier grade echo cancellation module• 32-bit 33MHz• Loop Start or Kewl Start Signaling• Temperature: 0° to 50° C• Digium patented VoiceBus™ technology for better audio• With Asterisk - DAHDI 2.7 or later required• With Switchvox - Switchvox 5.8.1 or later requiredTECHNICAL SPECIFICATIONS• Brand: Digium• Model: 1A8A01F• Product Type: Networking Accessories• One (1) - eight (8) analog ports• PCI or PCI Express bus architectures• Combine line (FXO) and station (FXS) modules• Accepts up to four (4) single-port modules• Optional DSP-based carrier grade echo cancellation module• 32-bit 33MHz• Loop Start or Kewl Start Signaling• Temperature: 0° to 50° C• Digium patented VoiceBus™ technology for better audio• With Asterisk - DAHDI 2.7 or later required• With Switchvox - Switchvox 5.8.1 or later requiredINTENDED USE / APPLICATIONS• Professional networking and communications deployments• Commercial, institutional, or industrial installations• Use with compatible equipment according to manufacturer specifications