INTRODUCTION

You can upgrade the TRXI-22A and TRXI-42A to twenty-four ports using a twelve port upgrade kit available from Cabletron Systems (Cabletron Part Number TRXI-24A-UGKIT or TRXI-44A-UGKIT).

The TRXI provides two additional ports for Ring In and Ring Out (RI/RO) connections. These ports support Cabletron’s Token Ring Port Interface Modules (TPIMs). TPIMs provide full repeater functionality. They are not included with the TRXI, but can be ordered separately from Cabletron. Table 1-1 lists each TPIM.

1.4TRXI FEATURES

Active TCU Ports

The active TCU ports regenerate, reshape and filter the incoming signal permitting UTP lobe cable lengths of up to 100 meters and STP lobe cable lengths up to 150 meters at 16 Mbps ring speed.

Cable Signal Polarity

Differential Manchester encoding is utilized for each of the concentrator module TCU ports. This permits passing data regardless of receive link polarity.

Note: If a reversed polarity condition is discovered, the segment should be removed from the network and wired correctly (according to the connector wiring shown in Chapter 2, Requirements / Specifications). This will avoid the potential for future compatibility problems.

Speed Fault Protection

If a station attempts to insert into the ring at a ring speed

(4 or 16 Mbps) different from what is set on the TRXI, that port is automatically bypassed to prevent the ring from beaconing. The Lobe Port Status LED blinks indicating the port with the speed fault is bypassed.

Local Management

Local Management provides the tools to manage the TRXI and all of its attached segments. You access Local Management by connecting a Digital Equipment Corporation VT™ 320 series terminal or a PC using VT320 emulation software to the TRXI’s COM 1 port.

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Cabletron Systems TRXI-42A, TRXI-22A manual Trxi Features, Active TCU Ports, Cable Signal Polarity, Speed Fault Protection
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TRXI-42A, TRMIM-24A, TRXMIM-44A, TRXI-22A specifications

Cabletron Systems was a pioneering company in the network and telecommunications industry, renowned for their innovative networking products. Among the array of devices they developed are the TRXI-22A, TRXMIM-44A, TRMIM-24A, and TRXI-42A. These modules are designed to cater to a variety of networking needs, showcasing versatile functionalities and robust performance features.

The TRXI-22A is a multi-port interface card that seamlessly integrates with Cabletron's networking systems. With its advanced architecture, it is capable of high-speed data transmission, making it ideal for environments that demand bandwidth and low latency. The TRXI-22A supports a variety of protocols, thus ensuring compatibility with multiple network types. This module is particularly known for its efficient processing capabilities, which reduce bottlenecks in data flow, ensuring smooth communication across networks.

In parallel, the TRXMIM-44A serves as a modular interface module that enhances network scalability. Equipped with 44 ports, the TRXMIM-44A enables the connection of numerous devices, allowing for expansive network growth. Its design optimizes network configuration, ensuring a stable and consistent performance across connected devices. The module supports Ethernet, allowing it to cater to both legacy and modern networking equipment, which is essential for organizations transitioning to more advanced infrastructures without overhauling existing systems.

The TRMIM-24A module is another critical asset in Cabletron's lineup. It is known for its robust management capabilities, offering advanced monitoring tools that empower network administrators to track performance metrics effectively. The TRMIM-24A features smart diagnostics that assist in troubleshooting, providing real-time insights into network health. This functionality promotes proactive management, minimizing downtime and ensuring uninterrupted service.

Lastly, the TRXI-42A stands out for its versatility and high performance. Designed for dynamic networking environments, it supports a myriad of data formats and protocols, making it a suitable choice for diverse applications. The TRXI-42A’s architecture is capable of handling large volumes of data traffic with ease, thus enhancing overall network throughput. In addition, it boasts security features that protect against unauthorized access and malicious attacks, ensuring data integrity.

Overall, the Cabletron Systems TRXI-22A, TRXMIM-44A, TRMIM-24A, and TRXI-42A are exemplary modules that encapsulate quality, performance, and adaptability. They are built to support the ever-evolving demands of networking, providing solutions that are not only efficient but also future-proof. Their combination of high-speed capabilities, scalability, and robust management tools make them integral to any substantial networking infrastructure.
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