D-Link DU-H4 manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of D-Link DU-H4, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of D-Link DU-H4 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of D-Link DU-H4. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of D-Link DU-H4 should contain:
- informations concerning technical data of D-Link DU-H4
- name of the manufacturer and a year of construction of the D-Link DU-H4 item
- rules of operation, control and maintenance of the D-Link DU-H4 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of D-Link DU-H4 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of D-Link DU-H4, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the D-Link service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of D-Link DU-H4.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the D-Link DU-H4 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    DU - H4 4 - port USB Hub User ’ s Manual Rev. 01 (Oct. 2000) Printed In China[...]

  • Page 2

    2 INTRODUCTION Thanks for purchasing the D - Link 4 - Port USB Hub. This easy plug and play external device will allow your computer to connect to USB interfa ced monitors, printers, digital speakers, modems, digital cameras, joysticks and other USB devices. Technology Overview USB stands for Universal Serial Bus. It’s a standard that has been ad[...]

  • Page 3

    3 About the 4 - Port USB Hub The 4 - Port USB Hub allows users to connect up to four USB peripherals to their USB ready PC or Mac. The 4 - port USB Hub is designed to provide quicker and easier access to four type “A” downstream ports for connecting peripherals with USB support, USB hubs and other devices. A single type “B” upstream port is[...]

  • Page 4

    4 INSTALLATION The 4 - Port USB Hub is designed to be simple and easy to install. Application Diagram[...]

  • Page 5

    5 Hardware Installation 1. Plug the included adapter into the rear of the 4 - Port USB Hub and an available electrical outlet. 2. Plug the B - type connector into the “Upstream Port”. 3. Plug the A - type connector into a computer or USB Hub downstream port. 4. Connect USB devices to the Hub. LED Indicators The 4 - Port USB Hub is eq uipped wit[...]

  • Page 6

    6 USB Connector Pin Assignment Receptacle A Series - A Plug Receptacle B Series - B Plug[...]

  • Page 7

    7 SPECIFICATIONS Standards: USB Specification V.1.x compatibly Data Speed: Low:1.5Mbps, High:12Mbps LED indicators: 4 - Port: Power x 2, Port statu s x 4 Upstream port: Series - B Receptacle x 1 Downstream port: 4 - Port: Series - A Receptacle x 4 Output Voltage: Per port DC +5V Output Current: 4 - Port: Per port 500mA External Power: power adapter[...]