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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Cisco 2821, 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 2821 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 2821. 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 2821 should contain:
- informations concerning technical data of Cisco 2821
- name of the manufacturer and a year of construction of the Cisco 2821 item
- rules of operation, control and maintenance of the Cisco 2821 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 2821 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 2821, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Cisco 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 2821.
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 2821 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
All contents are Copyright © 1992–2006 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement. Page 1 of 20 Data Sheet Cisco 2800 Series Integrated Serv ices Routers Cisco Sy stems ® , Inc. is red efining best -in-class e nterprise and s mall- to- mi dsize bus iness routing with a new line of integrated s ervices route[...]
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Page 2
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 2 of 21 SECURE NETWORK CONNECTIVITY FOR DA TA, VOICE, AND VIDEO Security has become a f undamental buildi ng block of any network. Routers play an important role in an y netw ork defense[...]
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Page 3
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 3 of 21 APPLICA TIONS Secure Netw ork Connec tivity with Converged IP Commu nications Figure 2. Secure Network Con nectivity with Converged IP Commun icatio ns[...]
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© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 4 of 21 Architecture—Features a nd Benefits The Cisco 2800 Series architecture has been designed sp ecifically to meet the expanding requirements of enterprise branch offices and small[...]
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© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 5 of 21 Modularity —Features an d Benefits The Cisco 2800 Series provides significantly enhanced modular capabilities (refer to Table 2) while maintaining investment protection for cus[...]
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© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 6 of 21 Secure Netw orking—Fea ture and Benefi ts The Cisco 2800 Series features enhanced security f unction ality as shown in Table 3. Integrated on t he motherboard of every Cisco 28[...]
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Page 7
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 7 of 21 IP Telephony Support—Features and Benefits The Cisco 2800 Series allows network m anagers to provide scalable analog and digital telephon y w ithout investing in a on e-time so[...]
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Page 8
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 8 of 21 Wireless Supp ort—Features an d Benefits The Cisco 2800 Series can provide a complete wireless solution for bran ch offices, sm all/medium size d busin esses, and Wi-Fi hotspo [...]
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Page 9
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 9 of 21 Cost of Ow nership and Ea se of Use—Fe atures and Be nefits The Cisco 2800 Series continu es the heritage of offering ve rsatility, integration, and p ower to branch offices. T[...]
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Page 10
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 10 of 21 PRODUCT SPECIFICATIONS Table 7. Chassis Specifi cations Cisco 2800 Series Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 Product A rchitecture DRA M • Default: 128 MB • Max imu[...]
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Page 11
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 11 of 21 Cisco 2800 Series Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 Power Requirements A C Input V oltage 100 to 240 VAC, autoranging A C Input F requency 47-63 Hz A C Input Current 2[...]
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Page 12
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 12 of 21 Cisco 2800 Series Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 Noise Level (Min/M ax) • 39 dBA for normal operating temperature (<90°F/32.2°C) • 53.5 dBA (@ maximum fan [...]
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Page 13
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 13 of 21 MODULAR SUPPORT Table 8. Modules and In terface Ca rds Suppo rted Network Module Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 Ethernet Switching Network M odules NME-16ES-1G One [...]
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Page 14
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 14 of 21 Network Module Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 NM-16A /S 16-port asynchrono us/synchronous serial network nodule No X X X NM-16A 16-port asynchrono us serial network[...]
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Page 15
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 15 of 21 Network Module Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 NM-HDV-2T1-4 8 2-port 48-channe l T1 voice and fax netwo rk module No X X X NM-HDV-1E1-12 1-port 12-channe l E1 voice [...]
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Page 16
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 16 of 21 Network Module Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 INTERFA CE-CA RD SUPPORT Ethernet Switching HW ICs HWIC-4ESW 4-port single-w ide 10/100BaseT Ethernet switch HW IC X X[...]
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Page 17
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 17 of 21 Network Module Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 DSL W A N Interface Cards WI C-1A DSL 1-port asymmetric DSL (ADSL) over POTS service W IC X X X X WI C-1A DSL-DG 1-por[...]
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Page 18
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 18 of 21 Network Module Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851 A dvanced Integration M odules A IM -A TM High-performance ATM SAR AIM No X X X A IM -COMPR2-V2 Data compression AI M [...]
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Page 19
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 19 of 21 Part Number Product Name CISCO2821-DC Integrated services router with DC pow er, 2GE, 1 NME-X , 1 EVM, 4 HW ICs , 3 PVDM slots, 2 AIMs, and Cisc o IOS IP Base Sof tware CISCO285[...]
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Page 20
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 20 of 21 Corpo rate Head quar ters Cisco System s, Inc. 170 West Tasman Drive San Jose, CA 9513 4-1706 USA ww w.cisco.com Tel: 408 5 26-40 00 800 5 53-NETS (638 7) Fax: 408 5 26-41 00 Eu[...]
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Page 21
© 2006 Cisco Systems , Inc. All rights reserved. Important notices , privacy statements , and trademarks of Cisco System s, I nc. can be found on cisc o.com. Page 21 of 21[...]