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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Black Box 38891, 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 Black Box 38891 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 Black Box 38891. 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 Black Box 38891 should contain:
- informations concerning technical data of Black Box 38891
- name of the manufacturer and a year of construction of the Black Box 38891 item
- rules of operation, control and maintenance of the Black Box 38891 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 Black Box 38891 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 Black Box 38891, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Black Box 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 Black Box 38891.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Black Box 38891 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
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Page 1
Perfect for limited-distance applications, these time- division muxes support up to 4, 8, or 16 channels. Perfect for limited-distance applications, these time- division muxes support up to 4, 8, or 16 channels. Asynchronous Local RS-232 Muxes © 2007. All rights reserved. Black Box Corporation. FREE 24-hour T ech Support: 724-746-5500 blackbox.com[...]
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Page 2
2 of 3 6/6/2007 #22457 724-746-5500 blackbox.com FEA TURES • Multiplexor and line driver in one compact unit. • Ideal for limited-distance applications. • Choose from 4-, 8-, or 16-port models. • Easy to install, no option switches to set. • T ransparent to speed and protocol. • Operates at distances up to 3000 ft. (914.4 m) over 24 A W[...]
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Page 3
3 of 3 6/6/2007 #22457 724-746-5500 blackbox.com TECH SPECS Maximum Distance — Up to 3000 ft. (914.4 m) on 2-twisted-pair cable (24 AWG) Multiplexing T echnique — Time division Operation — Full-duplex Protocol — Async Speed — 38887: Up to 64 kbps per port; 38889: Up to 38.4 kbps per port; 38891: Up to 19.2 kbps per port Indicators — LED[...]