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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Delta Electronics LC-155Axxxxx, 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 Delta Electronics LC-155Axxxxx 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 Delta Electronics LC-155Axxxxx. 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 Delta Electronics LC-155Axxxxx should contain:
- informations concerning technical data of Delta Electronics LC-155Axxxxx
- name of the manufacturer and a year of construction of the Delta Electronics LC-155Axxxxx item
- rules of operation, control and maintenance of the Delta Electronics LC-155Axxxxx 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 Delta Electronics LC-155Axxxxx 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 Delta Electronics LC-155Axxxxx, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Delta Electronics 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 Delta Electronics LC-155Axxxxx.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Delta Electronics LC-155Axxxxx 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
L C - 1 5 5 A x x x x x DEL T A ELECTRONICS, INC. www . d el t aww .c om 1 Jan., 2008 Rev. :0F Description The LC-155Axx xx series ar e 2x5 opt ical tra nsceiv er modules designed expressly fo r high-speed communication applications th at require ra tes of up to 155Mbps. They are all compliant with the SONET/SDH standards. The LC-155Axxxx transceiv[...]
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Page 2
L C - 1 5 5 A x x x x x DEL T A ELECTRONICS, INC. www . d el t aww .c om 2 Jan., 2008 Rev. :0F Absolute Maximum Ratings Parameter Symbol Min. T yp. Max. Unit Note S torage T emperature T s -40 85 ℃ Lead Soldering T emperature T sold 260 ℃ Lead Soldering T ime t sold 10 Second Supply V oltage Vcc 0 5 V Recommended Op erating Conditions Parameter[...]
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Page 3
L C - 1 5 5 A x x x x x DEL T A ELECTRONICS, INC. www . d el t aww .c om 3 Jan., 2008 Rev. :0F NRZ, PRBS=2 23 -1 and E.R= 9dB. Pin Definition PIN Symbol Functional description 1 GND Receiver Signal Ground 2 VccR Receiver Power Supply 3 SD Receiver Signal Detect ( L VPECL or L VTTL) 4 RD(-) Receiver Data Out Inverted (L VPECL) 5 RD(+) Receiver Data [...]
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Page 4
L C - 1 5 5 A x x x x x DEL T A ELECTRONICS, INC. www . d el t aww .c om 4 Jan., 2008 Rev. :0F Recommend Circuit Schematic for Internal DC Coupled T ransceivers R1=R3=82 ohm (3.3V),68 ohm(5V) R2=R4=130 ohm (3.3V),19 1 ohm (5V) R5=R6=150 ohm (3.3V),27 0 ohm (5V) R7=130 ohm (3.3V PECL),82 oh m(5V),NC (TTL) R8=82 ohm (3.3V PECL),13 0 ohm(5V),NC (TTL) [...]
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Page 5
L C - 1 5 5 A x x x x x DEL T A ELECTRONICS, INC. www . d el t aww .c om 5 Jan., 2008 Rev. :0F Package Outline (Plastic Housing): Package Outline (Met al Housing):[...]
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Page 6
L C - 1 5 5 A x x x x x DEL T A ELECTRONICS, INC. www . d el t aww .c om 6 Jan., 2008 Rev. :0F Regulatory Compliance Feature Reference Perf ormanc e Electromagne tic Interferenc e (EMI) FCC Class B EN 55022 Class B ( CISPR 22A) Radio Frequency Electromagnetic Field EN 61000-4-3 IEC 1000 -4-3 Electrostatic Discharge to the Duplex LC Receptacle EN 61[...]
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Page 7
L C - 1 5 5 A x x x x x DEL T A ELECTRONICS, INC. www . d el t aww .c om 7 Jan., 2008 Rev. :0F Appendix A . Document Revision V ers ion No. D ate Description 0E 2006-09 Release 0F 2008-01 Correct Schematic 、 Package Outline 、 Pin Definition 、 Order Informatio n[...]