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2-3

Solid copper

Installing New Wire

If you are installing the repeater where no wiring is present, or if existing wiring does not meet the above specifications, install new wiring. The new wiring should conform to national and local electrical wiring code requirements and meet the above specifications. When installing wire, it is a good idea to install extra pairs of wire for future expansion.

If you are unfamiliar with wiring installation or the applicable local electrical wiring code or the 100Base-TX specification, you should have a professional, licensed (if applicable) installer perform the installation.

Straight-through twisted-pair cable is typically used to connect a repeater to a server or workstation. In a straight-through connection, Pin 1 at the repeater connects to Pin 1 at the server, Pin 2 at the repeater connects to Pin 2 at the server, and so on. Figure 2-1 shows the locations of pins on a standard RJ-45 plug on a twisted-pair cable.

Twisted-Pair Cable

1

RJ-45 Plug

2 3 6 Pins

Figure 2-1. RJ-45 Plug

Tables 2-1 and 2-2 describe the wiring in a straight-through and crossover twisted-pair cable.

1124 100Base-TX Repeater User Guide

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Compaq 1124 manual Installing New Wire

1124 specifications

The Compaq 1124 is a vintage laptop that marked its presence in the early 1990s, showcasing the innovative leap in portable computing during that era. Designed primarily for business users and tech enthusiasts, the Compaq 1124 stands out for its compact size and impressive features at the time of its release.

One of the key features of the Compaq 1124 is its display. The laptop comes equipped with a 12.1-inch active matrix TFT screen, providing vibrant colors and improved viewing angles compared to its contemporaries, which often relied on passive matrix displays. This feature significantly enhanced the user experience for tasks ranging from document editing to multimedia presentations.

Powering the Compaq 1124 is the Intel 486 processor, which delivers robust performance for its time. The laptop typically features a clock speed of 25 MHz, making it suitable for a variety of business applications, from word processing to database management. This processor, combined with the generous RAM options ranging from 4 MB to 8 MB, ensures smooth multitasking and efficient operation.

Storage-wise, the Compaq 1124 offers several choices, accommodating a 120 MB hard disk drive, a significant capacity for early '90s computing needs. The inclusion of a 3.5-inch floppy disk drive keeps users connected to the prevalent data transfer methods of that time. Moreover, the laptop supports various expansion options through PCMCIA slots, allowing users to enhance functionality with modems, network cards, and more.

The design of the Compaq 1124 is another noteworthy aspect. It features a sturdy build, typical of the Compaq brand, ensuring durability and reliability for business professionals on the go. The laptop is also relatively lightweight, allowing for easy transportation. Its full-sized keyboard, despite being compact, provides a comfortable typing experience, essential for long working hours.

Connectivity options on the Compaq 1124 include a serial port, parallel port, and a VGA output, allowing users to connect various peripherals, printers, and external monitors. The integration of RS-232 and other interfaces highlights the laptop's versatility in connecting to a variety of devices.

In conclusion, the Compaq 1124 remains a significant example of early 90s portable computing technology. With its impressive display, solid processing power, and practical design, it catered to the needs of business users while paving the way for future advancements in laptop technology. Today, it serves as a nostalgic reminder of the evolution of portable computers.