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Cisco Clock Module CLK-7600 Installation Note

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Cisco Clock Module CLK-7600 Installation Note

Table Of Contents

Cisco Clock Module CLK-7600 Installation Note

Contents

Document Revision History

Parts List

Required Tools

Safety Overview

Checking the Clock Module

Replacing the Clock Module

Replacing the Clock Module on a Cisco 7603 Router, a Cisco 7604 Router, a Cisco 7606 Router, a Catalyst 6503 Switch, or a Catalyst 6504 Switch

Replacing the Clock Module on a Cisco 7609 Router or a Catalyst 6509-NEBS-A Switch

Verifying the Installation

Related Documentation

Obtaining Documentation and Submitting a Service Request


Cisco Clock Module CLK-7600 Installation Note


Product Number: CLK-7600=

This publication describes how to check the status of the clock module and describes how to remove and install the clock modules on the Cisco 7603, Cisco 7604, Cisco 7606, and Cisco 7609 routers, and on the Catalyst 6503, Catalyst 6504, and Catalyst 6509-NEBS-A switches. Clock modules are shown below.

Router/Switch
Clock Module Part Number

Cisco 7603 router, Cisco 7604 router, Cisco 7606 router, Cisco 7609 router, Catalyst 6503, Catalyst 6504, Catalyst 6509-NEBS-A

CLK-7600=



Note For information on replacing the VTT modules on the Cisco 7606 and Cisco 7609 routers, refer to the Cisco Clock Module (WS-C6K-CL and WS-C6513-CL) and VTT Module (WS-C6K-VTT) Installation Note at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/cfgnotes/78_10498.htm.

Contents

This publication consists of the following sections:

Document Revision History

Parts List

Required Tools

Safety Overview

Checking the Clock Module

Replacing the Clock Module

Verifying the Installation

Related Documentation

Obtaining Documentation and Submitting a Service Request

Documentation Feedback, page 12

Cisco Product Security Overview, page 12

Obtaining Technical Assistance, page 13

Obtaining Additional Publications and Information, page 15

Document Revision History

Revision
Date
Change Summary

OL-6267-3

April, 2005

Added Cisco 7604 router and Catalyst 6504 switch.

Added Document Revision History table.


Parts List

These parts are included in the replacement kit:

One clock module (CLK-7600=)

One disposable grounding wrist strap

One bag of spare clock module screws

Required Tools

These tools are required to perform the installation:

Number 1 Phillips screwdriver

Your own ESD-prevention equipment or the disposable grounding wrist strap included with all upgrade kits, field-replaceable units (FRUs), and spares


Note Refer to the Cisco 7600 Series Router Installation Guide for ESD details, including the locations of the ESD connectors on the Cisco 7600 series routers.

Safety Overview

Safety warnings appear throughout this publication in procedures that may harm you if performed incorrectly. A warning symbol precedes each warning statement.


Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Waarschuwing

Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.

Varoitus

Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).

Attention

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.

Warnung

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.

Avvertenza

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.

Advarsel

Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.

Aviso

Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.

¡Advertencia!

Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.

Varning!

Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.



Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning Before you install, operate, or service the system, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system.

Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.

Checking the Clock Module

To verify the status of the clock module on systems running Cisco IOS software, enter the show environment status command.

This example shows how to check the status of the clock module on a Cisco 7600 series router running Cisco IOS software:

Router> show environment status
backplane:
  operating clock count:2
fan-tray 1:
  fan-tray 1 fan-fail:OK
clock 1:
  clock 1 OK:not OK, clock 1 clock-inuse:not-in-use
clock 2:
  clock 2 OK:OK, clock 2 clock-inuse:in-use
...
Router> 
 
   

The above example shows a failure with clock 1 (clock module A).


Note Clock module A refers to clock 1 and clock module B refers to clock 2.

Note The clock module on a Cisco 7609 router or on a Catalyst 6509-NEBS-A switch contains dual redundant clocks (clock 1 and clock 2) on one module.

Replacing the Clock Module


Note You must remove all power from the Cisco 7600 series router before replacing the clock module.

Warning This unit might have more than one power supply connection. All connections must be removed to de-energize the unit.

The clock module is installed as follows:

Behind power supply 1 (the lower power supply) on the Cisco 7603 router or Catalyst 6503 switch (see Figure 1)

Behind power supply 1 (the lower power supply) on the Cisco 7604 router or Catalyst 6504 switch (see Figure 2)

Behind power supply 2 (the upper power supply) for the Cisco 7606 router (see Figure 3)

At the rear of the cabinet (the upper half) on the Cisco 7609 router or Catalyst 6509-NEBS-A switch (see Figure 4)

Figure 1 Cisco 7603 Router and Catalyst 6503 Switch Clock Module Location


Note Power supply 1 is not shown in the above illustration.

Figure 2 Cisco 7604 Router and Catalyst 6504 Clock Module Location


Note Power supply 1 is not shown in the above illustration.

Figure 3 Cisco 7606 Router Clock Module Location


Note Power supply 2 is not shown in the above illustration.

Figure 4

Cisco 7609 Router and Catalyst 6509-NEBS-A Switch Clock Module Location


Caution Always use an ESD wrist strap when handling modules or coming into contact with internal components.

Replacing the Clock Module on a Cisco 7603 Router, a Cisco 7604 Router, a Cisco 7606 Router, a Catalyst 6503 Switch, or a Catalyst 6504 Switch

To replace the clock module on a Cisco 7603 router, a Cisco 7604 router, a Cisco 7606 router, a Catalyst 6503 switch or a Catalyst 6504 switch, perform these steps:


Note You must remove all power from the Cisco 7600 series router before replacing the clock module.

Step 1 Power down the router as follows:

a. For a DC power supply, power down the router, verify that power is off to the DC circuit connected to the power supply, and remove the power supply. (Refer to Chapter 5, "Removal and Replacement Procedures," in the Cisco 7600 Series Router Installation Guide, or refer to Chapter 4, "Removal and Replacement Procedures," in the Catalyst 6500 Series Switches Installation Guide.)

b. For an AC power supply, disconnect the power cord from the power source, and remove the power supply. Do not touch the metal prongs on the power cord when it is still connected to the power supply. (Refer to Chapter 5, "Removal and Replacement Procedures," in the Cisco 7600 Series Router Installation Guide, or refer to Chapter 4, "Removal and Replacement Procedures," in the Catalyst 6500 Series Switches Installation Guide.)

Step 2 Locate the clock module. (See Figure 1 for Cisco 7603 router and Catalyst 6503 switch, Figure 2 for a Cisco 7604 router and Catalyst 6504 switch, and Figure 3 for the Cisco 7606 router.


Note Note the position of the clock module before you remove it from the chassis because you must install the new clock module in the same position.

Step 3 Remove the three securing screws that secure the clock module.

Step 4 Carefully lift and remove the clock module, placing it on an antistatic mat or foam.

Step 5 Remove the new clock module from the antistatic bag.

Step 6 Hold the clock module with the plug away from you.

Step 7 Carefully press the clock module onto the connector.

Step 8 Replace the three securing screws.

Step 9 Install the power supply. (Refer to Chapter 5, "Removal and Replacement Procedures," in the Cisco 7600 Series Router Installation Guide, or refer to Chapter 4, "Removal and Replacement Procedures," in the Catalyst 6500 Series Switches Installation Guide.)


Replacing the Clock Module on a Cisco 7609 Router or a Catalyst 6509-NEBS-A Switch

To replace the clock module on a Cisco 7609 router or a Catalyst 6509-NEBS-A switch, perform these steps:


Step 1 Power down the router as follows:

a. For a DC power supply, power down the router, verify that power is off to the DC circuit connected to the power supply, and remove the power supply. (Refer to Chapter 5, "Removal and Replacement Procedures," in the Cisco 7600 Series Router Installation Guide, or refer to Chapter 4, "Removal and Replacement Procedures," in the Catalyst 6500 Series Switches Installation Guide.)

b. For an AC power supply, disconnect the power cord from the power source. Do not touch the metal prongs on the power cord when it is still connected to the power supply or power entry module (PEM). (Refer to Chapter 5, "Removal and Replacement Procedures," in the Cisco 7600 Series Router Installation Guide, or refer to Chapter 4, "Removal and Replacement Procedures," in the Catalyst 6500 Series Switches Installation Guide.)

Step 2 Locate the clock module. (See Figure 4 for the Cisco 7609 router and Catalyst 6509-NEBS-A switch.)


Note Note the position of the clock module before you remove it from the chassis because you must install the new clock module in the same position.

Step 3 Remove the three securing screws that secure the clock module.

Step 4 Carefully lift and remove the clock module, placing it on an antistatic mat or foam.

Step 5 Remove the new clock module from the antistatic bag.

Step 6 Hold the clock module with the plug away from you.

Step 7 Carefully press the clock module onto the connector.

Step 8 Replace the three securing screws.

Step 9 Reconnect power to the supply. (Refer to Chapter 5, "Removal and Replacement Procedures," in the Cisco 7600 Series Router Installation Guide, or refer to Chapter 4, "Removal and Replacement Procedures," in the Catalyst 6500 Series Switches Installation Guide.)


Verifying the Installation

To verify the status of the clock module, perform these steps:


Step 1 Power up the router or switch.

Step 2 From the EXEC prompt (Router>), enter enable to enter privileged EXEC mode.

Step 3 Enter the password assigned to the system.

Step 4 Enter the show environment status command to verify the status of the replaced clock module.

This example shows that the clock module is functioning properly:

Router> enable
Password:
Router# 
Router> show environment status
backplane:
  operating clock count:2
fan-tray 1:
  fan-tray 1 fan-fail:OK
clock 1:
  clock 1 OK:OK, clock 1 clock-inuse:in-use
clock 2:
  clock 2 OK:OK, clock 2 clock-inuse:not-in-use
...
Router> 

Note Clock module A refers to clock 1 and clock module B refers to clock 2.
 
   

Related Documentation

For additional information on Cisco 7600 series routers, Catalyst 6500 series switches, and command-line interface (CLI) commands, refer to the following publications:

Cisco 7600 Series Router Installation Guide

Cisco 7600 Series Cisco IOS Software Configuration Guide, 12.1E

Cisco 7600 Series Router Cisco IOS Command Reference, 12.1E

Cisco 7600 Series Cisco IOS Software Configuration Guide, 12.2SX

Cisco 7600 Series Cisco IOS Command Reference, 12.2SX

Regulatory Compliance and Safety Information for the Cisco 7600 Series Routers

Catalyst 6500 Series Switches Installation Guide

Catalyst 6500 Series Cisco IOS Software Configuration Guide, 12.1E

Catalyst 6500 Series Cisco IOS Command Reference, 12.1E

Catalyst 6500 Series Cisco IOS Command Reference, 12.2SX

Regulatory Compliance and Safety Information for the Catalyst 6500 Series Switches

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What's New in Cisco Product Documentation as an RSS feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently supports RSS Version 2.0.