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3-7

Disconnecting Power

To power down the repeater, disconnect the power cord from the non- switched, grounded power outlet on the wall, power strip, or grounded extension cord. The power cord is not a TUV-tested disconnect. Therefore do not power down the repeater by disconnecting the power cord connector from the back of the repeater.

Replacing the Power Supply

The power supply's modular design makes the supply easy to replace. If power supply replacement is necessary, follow the instructions under “Installing a Redundant Power Supply Module” in the next section.

Installing a Redundant Power

Supply Module

The repeater comes with a pre-installed, 90-watt power supply module (PWR A). You can install an optional redundant power supply module (PWR B) for backup power. Contact your authorized Compaq reseller for information about ordering an additional power supply module or a replacement.

Follow these steps to install a redundant power supply module.

NOTE: You can install the redundant power supply module while the main power supply module is powered on.

1.Remove the two screws from the PWR B cover plate and remove the plate. Be sure you keep the cover plate and screws in case you need them for future use.

2.Carefully insert the power supply module into the opening until its 10- pin connector engages with the internal power connector and the face of the module is flush with the repeater's back panel.

3.Secure the power supply by tightening its two spring screws.

1124 100Base-TX Repeater User Guide

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Compaq 1124 manual Installing a Redundant Power Supply Module, Disconnecting Power, Replacing the Power Supply

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.