Patton electronic manual Model 2977/B4 DialFire BRI RAS, Model 2977 DialFire T1/E1 RAS

Model 2977 DialFire RAS User Guide 1 • DialFire Model 2977 RAS Adapters

Model 2977/B4 DialFire BRI RAS

The Model 2977 DialFire BRI RAS (see figure 1) 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, allowing up to eight simultaneous digital or analog remote access connections. 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).

Figure 1. Model 2977/B4 BRI RAS

DialFire adapters support a full range of connections, from low density analog modem, to medium density Basic Rate Interface (BRI) ISDN, to high density T1/E1 and Primary Rate Interface (PRI) ISDN. Multiple DialFire adapters can be installed in a single server so capability can be added as system needs grow.

Model 2977 DialFire T1/E1 RAS

Supporting open-standards remote access, fax, data collection, and modem pooling, the Model 2977 DialFire RAS server-based RAS (see figure 2) provides up to 60 ports in a single PCI slot.

Figure 2. Model 2977 T1/E1 RAS

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’s Model 2977 DialFire RAS.

The Model 2977 DialFire DSP-based RAS concentrator support a full range of connections, from low density to high density T1/E1 and primary rate interface (PRI) ISDN. Multiple Model 2977 DialFire adapters can be installed in a single server so capability can be added as system needs grow.

Model 2977 DialFire RAS overview 17