Cisco Systemsメーカー2851 Seriesの使用説明書/サービス説明書
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Americas Headquarters: © 20 08 Cisco Syst ems, Inc. All rights reserved. Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers This document describes ho w to i nstall or upgrade fans inside y our Cisco 2821 and Cisco 2851 series routers.
2 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety Warnings and Guidelines Safety Warnings and Guidelines This section pro vides the safety warnings and guidel ines for working with the Cisco 2821 and Ci sco 2851 series rout ers.
3 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety War nin gs and Gu idelines Statement 1071—Warning Definition War ni ng IMPORT ANT SAFETY INSTRUCTIONS This warning symbol means danger . Y ou are in a situation that could cause bodily injury .
4 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety Warnings and Guidelines Avvertenza IMPORT ANTI ISTRUZIONI SULLA SICUREZZA Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone.
5 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety War nin gs and Gu idelines.
6 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety Warnings and Guidelines Avis o INSTRUÇÕES IMPORT ANTES DE SEGURANÇA Este símbolo de aviso significa perigo. V ocê se encontra em uma situação em que há risco de lesões corporais.
7 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety War nin gs and Gu idelines.
8 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety Warnings and Guidelines War ni ng Do not touch the power supply wh en the power cord is connected. For sy stems with a power switch, line voltages are present within the power sup ply even when the power switch is off and the power cord is connected.
9 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Safety War nin gs and Gu idelines War ni ng Before working on equipme nt that is connected to pow er lines, remove jewelry (including rings, necklaces, and watches).
10 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Items in the Fa n Replacement Kit • If an electrical accident oc curs, proceed as follows: – Use caution, and do not become a victim yourself. – T urn off po wer to the system.
11 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Location of the Cisco 2821 and Cisco 2851 Router Fans Location of the Cisco 2821 and Cisco 2851 Router Fans Figure 1 sho ws the location of the fa n unit in the Cisco 2821 and Ci sco 2851 routers.
12 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit Removing the Router Cover T o access the Cisco 2821 or C isco 2851 fan unit, you must f irst remove the b ezel and then remov e the router cov er .
13 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit a. Grasp the bezel at the upward-facing arro w located at the top and center of the front bezel. (See Figure 2 .
14 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit b. Pull the top of the bezel 1/ 8 to 1/4 inch (3 to 8 mm) aw ay from the chassis. (See number 1 in Figure 3 .
15 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit Step 5 Remov e the router co ver . F ollow these steps: a. Use a number 2 Phillips scre wdriv er to remove the th ree scre ws at the back of the top cov e r .
16 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit Removing the Fan Unit After you remov e the router cover , follo w these steps to remove th e fan unit.
17 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit Step 2 Remov e the three screws that hol d the fan unit to the side of the chassis. (See number 1 in Figure 6 .
18 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit Installing the Fan Unit Follo w these steps to install t h e fan uni t. Note Before you begin , read the safety warnings as described in the “Safety W arnings and Gu idelines” secti on on page 2 .
19 Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Upgrading the Cisco 2821 and Cisco 2851 Fan Unit Replacing the Router Cover Note Before you begin , read the safety warnings as described in the “Safety W arnings and Guidelines” section on page 2 .
20 Installing and Upgradin g Fans in the Cisco 2821 and Cisco 2851 Series Routers 78-18643-02 Obtaining Documentati on, Obtaining Support, and Secur ity Guidelines Step 3 Center the cover o ver the chassis and lo wer it onto th e chassis, as shown i n Figure 8 .
デバイスCisco Systems 2851 Seriesの購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Cisco Systems 2851 Seriesをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはCisco Systems 2851 Seriesの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Cisco Systems 2851 Seriesの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Cisco Systems 2851 Seriesで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Cisco Systems 2851 Seriesを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はCisco Systems 2851 Seriesの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Cisco Systems 2851 Seriesに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちCisco Systems 2851 Seriesデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。