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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Aiphone LAF-20CA, 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 Aiphone LAF-20CA 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 Aiphone LAF-20CA. 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 Aiphone LAF-20CA should contain:
- informations concerning technical data of Aiphone LAF-20CA
- name of the manufacturer and a year of construction of the Aiphone LAF-20CA item
- rules of operation, control and maintenance of the Aiphone LAF-20CA 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 Aiphone LAF-20CA 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 Aiphone LAF-20CA, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Aiphone 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 Aiphone LAF-20CA.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Aiphone LAF-20CA 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
- INSTRUCTIONS - The LAF-C Console Master system is a loudspeaker type, single talkpath open voice system. Multiple masters can be used, along with a large variety of sub station models to create a communication system tailored to the user's needs. Master stations are available in 20-and 40-station sizes, with or without a handset. For greater[...]
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Page 2
Individual Components for System: L AF-20C 20-call console-style master station LAF-20CA 20-call console-style master station with handset LAF-40C 40-call console-style master station LAF-40CA 40-call console-style master station with handset LA-20AS 20-call Add-on Selector LA-40AS 40-call Add-on Selector PS-12C 12V DC, 1A Power Supply for standard[...]
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Page 3
3a. SINGLE MASTER SYSTEM, NO ALL CALL 1 2 3 4 5 ~ 20 E E E E - C R Y P1 P2 P3 + - LAF-20C + - PS-12C LE-A 1 E - LE-A LE-D Pg. 3 3b. DUAL MASTER SYSTEM WITH MASTER-TO-MASTER COMMUNICATION 1 E - 1 E - LE-D 1 E - NOTES: Two wiring method can be used: 1. 2 conductor homerun to each sub station from the master. (Single master system only.) 2. Run multi-[...]
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Page 4
3 WIRING DIAGRAMS 3c. THREE MASTER STATIONS WITH SUBS WIRED TO DIFFERENT MASTERS + - PS-12C LS-NVP Red Blk Grn LAF-40CA 1 2 3 ~ 37 E - C 39 40 R Y P1 P2 P3 + - LAF-40CA 1 2 3 ~ 37 E - 38 C 40 R Y P1 P2 P3 + - 1 2 3 ~ 37 E - 38 39 C R Y P1 P2 P3 + - LAF-40CA NOTE: When wiring LS-NVP subs with two wires, black and green wires are tied together at sub[...]
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Page 5
Pg. 5 3 WIRING DIAGRAMS + - PS-12F 3e. SINGLE MASTER SYSTEM WITH ALL CALL 1 2 3 ~ 10 11 12 ~ 20 C E - + R Y P1 P2 P3 LAF-20CA LE-BN 1 E - LE-BN LE-BN 1 E - 1 E - LE-BN 1 E - BG-10C #1 BG-10C #2 1 2 ~ 10 E - + R Y P1 P2 P3 + - R E L E NP-25V NP-25V + - PS-12F LE-BN 1 E - LE-BN 1 E - DC IN NOTES: 1. Any LE- or LS- series sub station can be used. 2. C[...]
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Page 6
SPECIFICATIONS: Power Source: 12V DC at master. Use PS-12C, or PS-12F when BG-10C(s) are included (1 PS-12F per BG-10C) Communication Output: 800mW at 20 ohms (receive); 500mW at 20 ohms (transmit) Communication: Push-to-talk, release-to-listen (TALK button), or VOX handset at master. Hands free at sub station. Calling: Master to sub or other maste[...]
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Page 7
5 TROUBLESHOOTING GUIDE PROBLEM 1. No call tone or LED when sub calls master. 2. Call tone works, but no communication, or communication works, but no call tone. 3. Call tone is too loud or too quiet. 4. Master stations cannot call each other. 5. LED lights don't light up when calling master-to- master. 6. Occupied light is always on. 7. When [...]
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Page 8
6 PRECAUTIONS & WARRANTY CAUTION * Do not connect any AC wires to any terminal on any unit, as fire or unit damage may occur. Connect only specified power source on +, - terminals. * Do not install more or different power sources than specified for the system. * Do not attempt to install or connect wires on LAF-C system while the system's [...]