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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Cisco Systems CAB-449FC, 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 Cisco Systems CAB-449FC 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 Cisco Systems CAB-449FC. 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 Cisco Systems CAB-449FC should contain:
- informations concerning technical data of Cisco Systems CAB-449FC
- name of the manufacturer and a year of construction of the Cisco Systems CAB-449FC item
- rules of operation, control and maintenance of the Cisco Systems CAB-449FC 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 Cisco Systems CAB-449FC 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 Cisco Systems CAB-449FC, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Cisco Systems 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 Cisco Systems CAB-449FC.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Cisco Systems CAB-449FC 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
CAB−449MT and CAB−449FC EIA/TIA−449 Serial Cable Specifications Document ID: 46801 Introduction Prerequisites Requirements Components Used Conventions EIA/TIA−449 Speed and Distance Limitations Serial Cable CAB−449MT EIA/TIA−449 Serial Cable Assembly EIA/TIA−449 DTE Cable Pinouts Serial Cable CAB−449FC EIA/TIA−449 DCE Cable Pinout[...]
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Page 2
4800 2,050 625 9600 1,025 312 19200 513 156 38400 256 78 56000 102 31 T1 50 15 Caution: The EIA/TIA−449 and V.35 interfaces support data rates up to 2.048 Mbps. Exceeding this maximum could result in loss of data and is not recommended. Serial Cable CAB−449MT This section presents the cable assembly and pinouts for the CAB−449MT serial cable.[...]
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Page 3
60 Pin 1 25 Pin J1−49 J1−48 MODE_1 GND Shorting group − − − J1−51 J1−52 GND MODE_DCE Shorting group − − − J1−46 Shield_GND Single − J2−1 Shield GND J1−11 J1−12 TxD/RxD+ TxD/RxD− Twisted pair no. 6 −−−> −−−> J2−4 J2−22 SD+ SD− J1−24 J1−23 TxC/RxC+ TxC/RxC− Twisted pair no. 9 <−−−[...]
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Page 4
1 Any pin not referenced is not connected. Serial Cable CAB−449FC This section presents the cable assembly and pinouts for the CAB−449FC serial cable. The cable gender for this product (part number 72−0796−01) is Male DB−60 to Female DB−37, mode − DCE. This cable is used in the following systems:the Cisco 7000 family, Cisco 4000 serie[...]
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Page 5
J1−9 J1−10 RTS/CTS+ RTS/CTS− Twisted pair no. 5 −−−> −−−> J2−9 J2−27 CS+ CS− J1−29 J1−30 NIL/LL Circuit_GND Twisted pair no. 12 −−−> − J2−10 J2−37 LL SC J1−7 J1−8 DTR/DSR+ DTR/DSR− Twisted pair no. 4 −−−> −−−> J2−11 J2−29 DM+ DM− J1−3 J1−4 DSR/DTR+ DSR/DTR− Twisted[...]