Chapter 1– Introduction

•Flash PROM for easy firmware upgrades

•Automatic detection of the data protocol for answering incoming data calls

•Embedded protocol analyzer for troubleshooting the connection to the ISDN network

The ISDN TAs provide data communication using Basic Rate Interface (BRI). They provide two 64 Kbps bearer channels for voice or data and one 16 Kbps D channel for signaling information (2B+D) and are compatible with V.120, PPP, and X.75.

The TAs provides dial-up asynchronous communication capability with other personal computers, terminals, on-line computer services, or other types of computer systems.

What is a S/T-Interface?An ISDN Basic Rate (BRI) U-Loop consists of 2 conductors from the CO (telephone company central office) to the customer premises. Equipment on both sides of the U-loop is carefully designed to deal with the long length of the U-loop and the noisy environment it operates in. At the customer premises, the U-loop is terminated by an NT1 (network termination 1) device. An NT1 (network terminator 1) is a device that provides an interface between the two-wire twisted-pairs used by telephone companies in their ISDN BRI network and an end-user’s four wire terminal equipment. The NT1 drives an S/T-bus that usually is 4 wires but in some cases may be 6 or 8 wires.

The name of the S/T bus comes from the letters used in the ISDN specifications to refer to two reference points, S and T. Point T refers to the connection between the NT1 device and customer supplied equipment. Terminals can connect directly to NT1 at point T, or there may be a PBX (private branch exchange, e.g., a customer-owned telephone exchange). When a PBX is present, point S refers to the connection between the PBX and the terminal.

Note that in ISDN terminology, terminal can mean any sort of end-user ISDN device, such as data terminals, telephones, FAX machines, etc. The following diagram reflects interface points in a typical ISDN network.

 

 

Point S

 

 

 

 

Point T

 

 

4–8 wires

 

 

 

 

4–8 wires

 

 

 

 

 

 

 

 

NT2

 

 

Terminal

 

 

 

 

 

 

 

 

 

 

 

(PBX)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Point S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Point S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NT2

Point U

4–8 wires

Telco Company Interface

MultiModem ISI Hybrid Series, ISIHI-2S

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Multi Tech Equipment ISIHI-2S manual NT2
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ISIHI-2S specifications

The Multi Tech Equipment ISIHI-2S is a cutting-edge device designed to meet the demands of diverse industries, including manufacturing, construction, and telecommunications. This innovative piece of equipment is characterized by its versatile functionality, user-friendly interface, and robust construction, making it an ideal choice for professionals looking for reliability and efficiency.

One of the standout features of the ISIHI-2S is its advanced automation capabilities. Equipped with state-of-the-art sensors and control systems, this equipment can perform various tasks with minimal human intervention. This not only enhances productivity but also reduces the risk of errors associated with manual operation. The automation technology embedded in the ISIHI-2S allows for seamless integration into existing workflows, streamlining processes and significantly improving operational efficiency.

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A user-friendly interface is another characteristic that sets the ISIHI-2S apart from its competitors. The intuitive control panel features a clear display, making it easy for operators to monitor performance and make adjustments as necessary. Furthermore, the device supports remote monitoring and control, allowing users to manage operations from a distance, which is particularly beneficial in large-scale projects.

In terms of technology, the ISIHI-2S incorporates advanced data analytics capabilities. Users can easily access and analyze performance data, enabling them to make informed decisions based on real-time metrics. This data-driven approach can lead to optimized operation strategies and more effective resource management.

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In conclusion, the Multi Tech Equipment ISIHI-2S is a powerful tool that combines advanced technology, durability, and ease of use. Its automation features, robust design, user-friendly interface, and data analytics capabilities make it a preferred choice for professionals seeking reliable equipment to enhance their operational efficiency. Whether in a construction site or a manufacturing facility, the ISIHI-2S is set to revolutionize how tasks are approached and executed.
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