Model 2977
DialFire Server-Based, Enterprise T1/E1 RAS & Fax Adapter
Supporting open-standards remote access, fax, data collection, and modem pooling, the Model 2977 DialFire server-based RAS offers up to 60 ports in a single PCI slot.
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  • Dynamic analog/digital/fax support. On-board DSPs provide advanced modem & fax support and maximize the efficiency of each communication channel
  • Field upgradable from 24/30 ports to 48/60 ports supporting up to two 61/E1 ports
  • Advanced DSP Technology. Supports V.90, K56Flex, ISDN, and FAX applications
  • . The Model 2977 DialFire RAS integrates with and take advantage of the inherent communications capabilities built-in to your current server operating environments like; Microsoft, and Linux
    The following operating systems: Novell Netware, SCO OpenServer5, and SCO UnixWare are not supported by Patton's RAS Engineering & Technical Support Teams although legacy Digi International Driver's are available from Patton's software Upgrade Site at upgrades.patton.com. For additional information please contact marketing@patton.com.
  • The Model 2977 Digital Domain RAS operates within the PCI 2.1 mechanical and electrical specifications, support 3.3 or 5-volt PCI servers, and share common software architecture

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 provides the widest compatibility and most powerful performance available in a PCI slot. Patton's Model 2977 DialFire adapters support a full range of connections, from low density to high density T1/E1 and Primary Rate Interface (PRI) ISDN. Multiple Model 2977 Digital Domain adapters can be installed in a single server so capability can be added as system needs grow.


Many companies today rely on faxes to communicate with their customers. From hospitals to distribution companies, having the ability to send faxes simultaneously is a must. With Patton's 2977 DialFire RAS, setting up a fax server is easier than ever. For companies with large faxing requirements, the 2977 RAS adapters for digital & analog communications combine Patton's world-class hardware with high-speed ISDN access to provide up to 60 simultaneous connections.
Model

Modem Data Modes: V.90, K56Flex, V.34, V.34bis, V.32bis, V.32, V.24bis, V.23, V.22bis, V.22, V.21, Bell 212a, Bell 103, TIA TSB37-A, TIA TSB38
Compliance: FCC Part 15A, CE Mark, EMC Directive 89/336/EEC, Low-Voltage Directive 73/23/EEC
FAX Command Set: Group 3 FAX Class 2.0, Class 2.0 Error Correction, All optional 2.0 Data format conversions are supported including: Normal Image, Fine Image, 1D Image Conversion, 2D—MR Image conversion, Copy Quality Checking & Receiving Thresholds, Adaptive Answering, TSI Banner, Distinctive Ring, Caller ID, and IS-101 Voice Command Set.
ISDN Specifications: Primary Rate Interface: D-Channel Signaling, ISDN Data Link Layer ITU-T Q.921, ISDN Call Control Signaling ITU-T Q.932/I.451
Compression & Error Correction: V.42bis, MNP Class2, MNP Class 4, MNP Class 5, V.42 Error Correction (LAPM & MNP)
T1/E1 Specifications: T1 Supervision Modes: Ground Start Signaling, Wink Start Signaling, Immediate Start Signaling, & Loop Start.
E1 Supervision Modes: CCS with CRC4 ITU G.704, CAS with CRC4 ITU G.704, CRCA with Remote End Block Error signaling, and R2 Signaling
Fax Modes: Group 3, V.17, V.29, V.27,V.21 Channel 2
Certifications: Safety: USA: UL Recognized, UL 1950 • Canada: CSA Certified, CSA C22.2 No.950 • Europe: EN60950—CE Mark: Australia: AS3260—Telecom: USA: FCC Part 68 • Canada: CS03 • Europe: I-CTR4 (NET 5) • Australia: TSO38—Emission & Immunity: EN50082 Immunity, FCC Part 15, Subpart B
Op. Temp.: Powered via USB interface
Humidity: 5–90% non-condensing
Air Movement: 30 CFM Forced
Altitude: 0–12,000 ft (0–3,660 m)
Operating System Support: Microsoft > Windows 2000 Server, Windows XP, Windows NT 4.0 • Linux with 2.4.x drivers. 2.6.x drivers are currently not available
Dimensions: Model 2977 24, 30, 48, & 60: 12.283L x 4.20W in. (31.199L x 10.688W cm)
Model 2977 Daughter Card: 7.10L x 3.80W in. (18.034 x 9.652 cm) )
Dimensions: 3.5L X 2.1W X 0.78H in. (9.0L X 5.3W X 1.9H cm)


  • BRI Line Ordering Information
  • Channelized T1 Line Ordering Information
  • E1 R2 Line Ordering Information

    • 2977/24/PT1 24 PORT T1/E1/PRI DIGITAL DOMAIN RAS
    2977/24/PTM 24 PORT DB, UPGRADE/48 PORT
    2977/30/PE1 30 PORT T1/E1/PRI DIGITAL DOMAIN RAS
    2977/30/PEM 30 PORT T1/E1/PRI RAS DAUGHTER BRD
    2977/48/PT2 48 PORT T1/E1/PRI DIGITAL DOMAIN RAS
    2977/60/PE2 60 PORT T1/E1/PRI DIGITAL DOMAIN RAS

    Dial-Up Modems
    Model 2192/USB USB V.92/56-kbps Dial-up Modem
    Enterprise RAS
    Model 2977/B4 DialFire Server-Based, Enterprise RAS, BRI RAS, & Fax
    ISP RAS
    Model 2960/16 16-Port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)
    Model 2960/24 24-Port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)
    Model 2960/30 30-Port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)
    Model 2960/48 48-Port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)
    Model 2960/60 60-Port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)
    Model 2996/120 120-Port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)
    Model 2996/96 96-Port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)
    Model 3120 96 or 120-port, V.92/V.110/V.90/ISDN, Dial-Up, Remote Access Server (RAS)

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