| Digital Multi-Modem
Modem Pooling, FAX, or Remote Access.
Patton Model 2977 DialFire series of Analog/ISDN Multi-Modem
cards provided a full range of digital and analog
connections, from low density (BRI) to high density T1 &
E1 (PRI) ISDN.
Diva Media Boards are compatible with NetModem Server and the latest versions of Windows, including Windows 10 and Server 2019.
The Patton 2977 was phased out. Suggested replacement products:
While Patton is no longer updating their device drivers, PC Micro released updated modem drivers for NetModem Clients running under Windows 10/8/7/Vista/XP and Windows Server 2016/2012/2008
which allow the 2977's modems to be accessed from a remote NetModem Server on either physical or virtual machines.
2977 Features and Benifits:
- Dynamic analog/digital/fax support. On-board DSPs provide
advanced modem & fax support and maximize the efficiency
of each communication channel.
Architecture. Field upgradable from 24 to 48 ports, or from
30 to 60 ports, supporting up to two T1/E1 lines per card.
Multiple cards can be installed in one PC.
DSP Technology. Supports V.90, K56Flex, ISDN, and Advanced
Class 2 Fax.
OS and third-party application support. The Model 2977 DialFire
RAS integrates with and take advantage of the inherent communications
capabilities built-in to your current server operating environments,
including: Windows Server, SCO, and
server compliance. The Model 2977 Series operates within
the PCI 2.1 specifications, support 3.3 or 5-volt PCI servers,
and share common software architecture.
Management. Hardware manager provides reporting and diagnostic
by Digi for the most common PC Server Operating Systems, the 2977
product line meets a wide range of remote access needs, including
connectivity for mobile employees, telecommuters, branch offices
and SOHO (small office/home office) users. It does not require
separate administrative training or a substantial investment
to add remote access or fax connectivity. IT managers can continue
to use the same management systems and administrative tools
they know and trust. Users can continue to use the same remote
access resources to which they''re accustomed.
Patton's built-in modems use the latest advances in Digital
Signal Processing (DSP) technology, resulting in the industry's
highest density of on-board modems for a RAS concentrator which
provides low-cost connectivity to the Public Switched Telephone
Network (PSTN), the Internet and your intranet, and scale to
meet future growth demands.
The Patton Digi 2977 are backed by an optional five-year advanced-replacment
The standard manufacturer warranty is one year parts and labor,
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,
Compliance: FCC Part 15A, CE Mark, EMC Directive 89/336/EEC,
Low-Voltage Directive 73/23/EEC
Fax Modes: Group 3, V.17, V.29, V.27,V.21 Channel 2
FAX Command Set: Group 3 FAX Class 1, Group 3 FAX Class 2, 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.
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
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.: 32 - 122°F (0 - 50°C)
Humidity: 5 - 90% non-condensing
Air Movement: 30 CFM Forced
Altitude: 0-12,000 ft (0-3,660 m)
Operating System Support: Microsoft - Windows Server 2003, 2000 Server,
Windows XP, Windows NT4 - Novell - Netware4.1, Netware 4.11,
& Netware 5.1 - SCO - UnixWare 7 SVR5, Open-Server 5
and - Linux
When used with NetModem, remote clients can also run under Windows
Server 2008, Server 2008 R2, Windows 7, Windows 8, and Windows Vista.
(including both 32-bit and 64-bit versions).
Model 2977 24, 30, 48, & 60 : 12.283L x 4.20W
in. (31.199L x 10.688W cm)
Model 2977 Daughter Cards7.10L x 3.80W in. (18.034 x 9.652
2977/B4/U: 8 port RAS Card - 4 BRI ISDN - Formerly
Digi Part # 77000606
2977/24/PT1: 24 Port RAS Card - Single T1 WAN - Formerly Digi
2977/48/PT2: 48 Port RAS Card - Dual T1 WAN -Formerly Digi
2977/30/PE1: 30 Port RAS Card- Single E1 WAN -Formerly Digi
2977/60/PE2: 60 Port RAS Card - Dual E1 WAN - Formerly Digi
Part # 77000603
2977/24/PTM: 24 Port Daughterboard upgrades 24 Port RAS to
48 Ports - Formerly Digi # 77000594
2977/30/PEM: 30 Port Daughterboard Upgrades 30 Port RAS to
60 Ports - Formerly Digi # 77000600
port (4 BRI ISDN PORTS) RAS Card U I/F (NORTH AMERICA)
||24 PORT Single
T1/PRI ISDN RAS Card
||24 PORT T1 Daughterboard. Upgrade 24 PORT Card
to 48 PORT
||30 PORT Single
E1/PRI ISDN RAS Card
||30 PORT E1 Daughterboard. Upgrade 30 PORT Card
to 60 PORT
||48 PORT Dual T1/PRI
ISDN RAS Card
||60 PORT Dual E1/PRI ISDN RAS Card
data sheets, manuals, and software upgrades can be found in
the Download area.
additional information, please contact our sales department:
Toll-Free: 1-800-922-0005 7am-5pm
||DialFire and Patton
are trademarks of Patton Electronics Co.