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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of ADTRAN DSU III S2W, 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 ADTRAN DSU III S2W 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 ADTRAN DSU III S2W. 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 ADTRAN DSU III S2W should contain:
- informations concerning technical data of ADTRAN DSU III S2W
- name of the manufacturer and a year of construction of the ADTRAN DSU III S2W item
- rules of operation, control and maintenance of the ADTRAN DSU III S2W 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 ADTRAN DSU III S2W 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 ADTRAN DSU III S2W, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the ADTRAN 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 ADTRAN DSU III S2W.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the ADTRAN DSU III S2W 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
DSU III S2W 2-Wire Switched 56 DSU/CSU The unit responds to standar d loopback commands from the service provider and pro vides extensive test capabilities. T ests include DTE, DTE and loop , DTE with test pattern, and loop only . The front panel of the standalone DSU III S2W contains a two-line by 16-character LCD display and seven LEDs . The fron[...]
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Page 2
Product Specifications Operating modes ■ 2-wire Switched 56 (SW56) DTE Rates ■ DTE-to-loop rate matching in both switched and virtual private line mode ■ Synchronous rates: 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 48, 56, and 64 kbps ■ Asynchronous rates: 1.2, 2.4, 4.8, 9.6, 19.2, 38.4 and 57.6 kbps Network Interface ■ 2-wire SW56 based on Norther[...]