Compaq 1124 manual Connecting Twisted-Pair Cable, Setting the Uplink Switches

Page 21

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3

Connecting Twisted-Pair Cable

Each RJ-45 port on the repeater can accept a standard 8-wire twisted-pair (UTP) cable that ends with an RJ-45 connector. These ports can support cable lengths up to 328 feet (100 meters).

To attach twisted-pair cable, plug one of the RJ-45 connectors into the selected port on the repeater. Connect the other RJ-45 connector into a 100Base-TX or 10Base-T workstation.

PWR A

PWR B

COL

 

 

 

13

 

 

 

14

 

 

15

 

 

 

16

 

 

17

 

 

18

19

20

 

21

 

22

 

23

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MDI-X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

2

 

 

3

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

6

7

8

 

9

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MDI MDI-X

MDI-X

100Base-TX Workstation

Figure 3-3.Connecting Twisted-Pair Cable

Setting the Uplink Switches

The uplink switches enable the 1st and 12th ports on the repeater to function as either standard IN RJ-45 ports or uplinkable OUT RJ-45 ports.

IN ports use an internal crossover of the receive and transmit lines, enabling the port to connect to a network interface card using standard 8-wire UTP cable. OUT ports let you interconnect the repeater and another repeater without the need for special crossover cables and allows the two repeaters to be on the same segment.

1124 100Base-TX Repeater User Guide

Image 21
Contents Netelligent 100Base-TX Repeater Compaq Netelligent 1124 100Base-TX Repeater User Guide Federal Communications Commission Notice ModificationsEmissions Safety European Union NoticeImmunity Contents Viii Appendix aIntended Reader Organization of ContentsIntroduction FeaturesPackage Contents Package Contents 4Introduction Operational OverviewLED Indicators LED IndicatorsInstallation Requirements Planning Repeater InstallationEnvironmental Requirements Electrical RequirementsTwisted-Pair UTP Wire Requirements 2Planning Repeater InstallationSpatial Requirements Installing New Wire 4Planning Repeater Installation 100Base-TX Repeater Setup and Cabling Chart System Planning Charts6Planning Repeater Installation Rack Inventory ChartMounting the Repeater Installing the RepeaterAttaching the Rubber Feet Rack-Mounting the RepeaterAttaching the Mounting Brackets 2Installing the RepeaterSetting the Uplink Switches Connecting Twisted-Pair Cable4Installing the Repeater Interconnecting RepeatersInterconnecting 100Base-TX Repeaters Connecting PowerConnecting the Power Cable 6Installing the RepeaterInstalling a Redundant Power Supply Module Disconnecting PowerReplacing the Power Supply Installing a Redundant Power Module 8Installing the RepeaterElectrical Specifications Appendix a SpecificationsEnvironmental Specifications Physical SpecificationsIndex 2Index

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.