Manuale d’uso / di manutenzione del prodotto 2821 Series del fabbricante Cisco
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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 .
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Cisco 2821 Series è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Cisco 2821 Series - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cisco 2821 Series imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cisco 2821 Series ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cisco 2821 Series, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Cisco 2821 Series.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Cisco 2821 Series. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cisco 2821 Series insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
