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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of 3Com 4200, 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 3Com 4200 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 3Com 4200. 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 3Com 4200 should contain:
- informations concerning technical data of 3Com 4200
- name of the manufacturer and a year of construction of the 3Com 4200 item
- rules of operation, control and maintenance of the 3Com 4200 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 3Com 4200 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 3Com 4200, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the 3Com 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 3Com 4200.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the 3Com 4200 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
DA T A SHE ET fr om top: 3Com Switch 4200 28-Port, Switch 4200 26-Port, Switch 4200 50-Port 3 C O M ® SWIT CH 4200 F AMIL Y Highl y affor dable, entry-l evel managed 10/100 Mbps connectivity f or medium-sized businesses and branch offic e networks OVERVIEW The 3Com ® Switch 4200 f amily pr ovides wir espeed 10/100 stackabl e switching with easy-[...]
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Page 2
2 3COM ® SWI TCH 4200 F AM IL Y SMALLT OMEDIUM LAN CONFIGURA TION SUPPORTED BY THE SWITCH 4 200 3 C o m ® 3 1 0 2 V o I P P h o n e s 3C o m R o u t e r 3 0 1 2 E t h e r n e t / F a s t E t h e r n e t G i g a b i t E t h e r n e t I n t e rn e t 3 C o m S w i t c h 4 2 0 0 3 C o m S w i t c h 5 5 0 0 G - E I 3 C R 1 7 5 6 2 9 1 S S t k 3 [...]
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Page 3
3 3COM ® SWI TCH 4200 F AM IL Y SPECIFICA TIONS All information in this section is r elev ant to all members of the 3Com Switch 4200 famil y , unless otherwise s tated. CONNECTORS 26-port 24 auto-negotiating 10BASE-T/100BASE-TX ports configur ed as auto-MDI/MDIX 2 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports configur ed as auto MDI/MDIX 2[...]
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Page 4
POWE R SUPP L Y Input voltage: 100-240 V AC, 50/60 Hz Curr ent rating: 1.0A maximum ENVIRONMENT AL REQUIREMENTS Operating temperatur e: 0° to 40°C (32° to 104°F) Storage temper ature: -40° to 70°C (-40° t o 158°F) Humidity (operating and stor age): 10% to 90% non-condensing Standar d: EN 60068 (IEC 68) RELIABILITY (MTBF @ 25°C) 26-port: 63[...]