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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Cisco Systems 2621, 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 2621 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 2621. 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 2621 should contain:
- informations concerning technical data of Cisco Systems 2621
- name of the manufacturer and a year of construction of the Cisco Systems 2621 item
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- 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 2621 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 2621, 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 2621.
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 2621 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
Corporate Headquarters: Copyright © 20 03 Cisco Systems, Inc. All rights reserved. Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA BootROM Installation for Cisco 2620 and Cisco 2621 Routers Product Numbers: MEM2620-32FSBOOT= This document describes the procedures for replacing the BootR OM in a Cisco 2620 or Cisco 2621 rout[...]
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Page 2
2 BootROM Installation for Cisco 2620 and Cisco 2621 Routers 78-13192-02 Opening the Chassis Warning Only trained and qualif ied personnel should be allowed to install or replace this equipment. Warning Before performing any procedures described in this document, review the Safety Recommendations in your Regulatory Compliance and Safety Information[...]
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Page 3
3 BootROM Installation for Cisco 2620 and Cisco 2621 Routers 78-13192-02 Opening the Chassis Removing the Chassis Cover Y ou must open the chassis to access the internal components. Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. T o remov e the chassis cov er: Step 1 Att[...]
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4 BootROM Installation for Cisco 2620 and Cisco 2621 Routers 78-13192-02 Replacing the ROM Replacing the ROM T o upgrade the router R OM software to a ne w R OM monitor version, you must replace the e xisting R OM. Follo w this procedure to replace the R OM: Caution Correct placement of the R OM is crucial. If improperly positioned, the new compone[...]
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5 BootROM Installation for Cisco 2620 and Cisco 2621 Routers 78-13192-02 Closing the Chassis Step 3 Orient and insert the ne w R OM in its socket as sho wn in Figure 3 , being careful to not bend or crush any of the bottom pins. T o straighten out a bent pin, use needlenose pliers. Align the notch in the ne w R OM with the notch in the R OM socket,[...]
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6 BootROM Installation for Cisco 2620 and Cisco 2621 Routers 78-13192-02 Obtaining Technical Assistance Cisco.com Y ou can access the most current Cisco documentation on the W orld W ide W eb at this URL: http://www .cisco.com/univ ercd/home/home.htm Y ou can access the Cisco website at this URL: http://www .cisco.com International Cisco websites c[...]
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7 BootROM Installation for Cisco 2620 and Cisco 2621 Routers 78-13192-02 Obtaining Technical Assistance Cisco TAC Website The Cisco T AC website ( http://www .cisco.com/tac ) provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The Cisco T AC website is av ailable 24 hours a da[...]
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Page 8
8 BootROM Installation for Cisco 2620 and Cisco 2621 Routers 78-13192-02 Obtaining Additional Publications and Information Obtaining Additional Publications and Information Information about Cisco products, technologies, and network solutions is a vailable from v arious online and printed sources. • The Cisco Product Catalog describes the network[...]