The Model 2977 DialFire BRI RAS is the ultimate WAN adapter card for use with BRI lines. It is designed to work in a standard PCI 2.1 slot (5.0 or 3.3 volts) and can terminate four BRI communication lines. Calls can be originated and answered on all 8 channels (2 each for all 4 BRI connections). All channels can handle modem calls (up to 56 kbps—V.90 and K56flex) and B channel calls (64 kbps).

The Patton Model 2977 DialFire Family of DSP (Digital Signal Processor) based RAS (Remote Access Server) concentrator adapters provides the widest compatibility and most powerful performance available in a PCI slot. For demanding, server-based applications including modem-pooling, remote access, advanced fax, World Wide Web and branch office internetworking, you won't find a better product line than the Patton 2977 DialFire RAS.

Dynamic analog/digital/fax support. On-board DSPs provide advanced modem & fax support and maximize the efficiency of each communication channel
Multi-function ISDN RAS. 4 BRI interfaces for up to 8 chassis
Advanced DSP Technology. Supports V.90, K56Flex, ISDN, and Advanced FAX applications
Wide OS and third-party application support. The Model 2977 DialFire RAS integrates with and take advantage of the inherent communications capabilities built into your current Microsoft, and Linux server operating environments
Universal server compliance. The Model 2977 DialFire RAS operates within the PCI 2.1 mechanical and electrical specifications, support 3.3 or 5-volt PCI servers, and share common software architecture