D-Link DUB-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 DUB-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.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of D-Link DUB-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 DUB-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 DUB-H4 should contain:
- informations concerning technical data of D-Link DUB-H4
- name of the manufacturer and a year of construction of the D-Link DUB-H4 item
- rules of operation, control and maintenance of the D-Link DUB-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 DUB-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 DUB-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 DUB-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 DUB-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

    4-Port Hi-Speed USB 2.0 Hub DUB-H4 DUB-H4 DUB-H4 DUB-H4 DUB-H4 This product can be used with the This product can be used with the This product can be used with the This product can be used with the This product can be used with the following operating systems: following operating systems: following operating systems: following operating systems: f[...]

  • Page 2

    Installing the DUB-H4 A. Plug the USB type B connector (the larger end of the cable) into the back of the DUB-H4. B. Plug the AC adapter into the DUB- H4 and into a power socket in a power-strip or a wall jack. C. Plug the USB type A connector (the narrow end of the cable) into an available USB 2.0 port on your computer (or USB 1.1 if you don’t h[...]

  • Page 3

    LED Indicator Description The DUB-H4 features five LED indicators… • The Power LED indicator is red and lights up when the DUB-H4 is powered on by using the external power adapter . The DUB-H4 does not run on power supplied from the computer (bus powered). • The downstream LED indicators are green. Each port has one status LED. The LED lights[...]

  • Page 4

    • When connecting USB cables between USB devices and the DUB-H4, make sure that the cable is connected securely . • Remember that when connecting USB 1.1 devices to a USB 2.0 hub or host adapter , the USB 1.1 device will not work at USB 2.0 speeds. • The DUB-H4 does not have an on/off switch. It is always on, once the exter- nal power adapter[...]