Global Solutions

Express NTU

Synchronous ISDN Terminal Adapter

Product Features

Provides up to 128 kbps

of dialed or dedicated

bandwidth for high-speed

data applications

Supports dedicated 128

kbps service over two

wires in a limited distance

modem or leased line

application

Uses standard ISDN

Basic Rate service

EIA-232, V.35 or EIA-530

DTE interface

Supports data rates up to

128 kbps synchronous or

230.4 kbps asynchronous

Built-in network termina-

tion and terminal adapter

functionality

Supports BONDING and

Multilink PPP

Remotely configurable

over the ISDN line

The Express NTUis a full-featured single-port terminal adapter that allows cost-effective high-speed data transmission at rates up to 128 kbps. The Express NTU is ideal for LAN/WAN connectivity or disaster recovery.

ISDN service is delivered from the network by a single 2-wire U-interface which is connected directly to the Express NTU. The Express NTU responds to loopback commands from the telephone company central office to make testing easy.

The Express NTU transmits data over an EIA-530, EIA-232 or V.35 DTE interface. The Express NTU performs at synchronous data rates of 2400 bps to 128 Kbps and asynchro-

nous rates of 300 bps to 230.4 Kbps. Network transmission at 128 Kbps is supported using either multilink PPP or the Bonding delay equalization protocol.

The Express NTU also supports dedicated leased 2B1Q services. This provides a dedicated point-to-point service with no dialing necessary.

The front panel of the Express NTU provides five LEDs that indicate the status of the product, line and DTE. Configuration, testing and monitoring of the unit can be accomplished through a VT100 terminal connected to the DTE port, or remotely over the ISDN line.

Manual, automatic, and

stored number dialing

Windows® Plug-and-Play

compatible

 

PC

ISDN

 

Express NTU

PC

PC

ISDN

Express NTU

PC

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ADTRAN ISDN Terminal Adapter manual Dialed or dedicated, Data applications, Kbps service over two, Modem or leased line

ISDN Terminal Adapter specifications

ADTRAN ISDN Terminal Adapter: Bridging the Digital Divide

In the realm of digital communication, the ADTRAN ISDN Terminal Adapter stands out as a reliable solution for organizations seeking to leverage Integrated Services Digital Network (ISDN) technology. Designed to facilitate seamless connectivity and enhance communication capabilities, the ADTRAN ISDN Terminal Adapter is a versatile device that supports various applications in both residential and business environments.

One of the main features of the ADTRAN ISDN Terminal Adapter is its ability to convert ISDN signals into a format compatible with standard digital equipment. This feature allows users to connect traditional devices such as telephones, fax machines, and computer networks to the ISDN infrastructure, thus enabling efficient communication without the need for extensive upgrades. The adapter typically supports both Basic Rate Interface (BRI) and Primary Rate Interface (PRI) configurations, catering to different communication needs.

The ADTRAN ISDN Terminal Adapter is equipped with multiple ports, allowing for simultaneous connections. It usually includes two BRI ports, enabling the attachment of multiple devices while supporting two simultaneous calls. Moreover, the device commonly offers Ethernet connectivity, allowing users to integrate their local area network (LAN) with the ISDN system. This feature enhances productivity by enabling voice and data transfer over one line.

In terms of technology, the ADTRAN ISDN Terminal Adapter incorporates advanced features such as call switching, caller ID, and support for various voice codecs. These capabilities ensure high-quality voice transmission and compatibility with various telecommunication services. Additionally, the adapter often includes built-in network address translation (NAT) and firewall features that enhance security, protecting connected devices from external threats.

The characteristics of the ADTRAN ISDN Terminal Adapter also include ease of installation and management. With user-friendly interfaces and web-based management options, administrators can quickly configure settings and monitor performance. This ease of use minimizes downtime and ensures that organizations can maintain robust communication channels.

In summary, the ADTRAN ISDN Terminal Adapter is a critical tool for enterprises looking to integrate ISDN technology into their operations. With its extensive features, compatibility with a range of devices, and robust security measures, the adapter plays a vital role in ensuring reliable and efficient communication in an increasingly digital world. Whether for a small business or a larger enterprise, the ADTRAN ISDN Terminal Adapter provides the technological foundation necessary for effective digital communication.