Chapter 2: Preparing for Installation

This chapter describes the general equipment, safety, and site preparation requirements for installing the 6E3 line card. This chapter contains the following sections:

Required Tools and Equipment

You need the following tools and parts to install a line card. If you need additional equipment, contact a service representative for ordering information.

•

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

Software and Hardware Requirements

Table 2-1 lists the recommended minimum Cisco IOS software release required to use the 6-port 6E3 line card in the 7304 router platform.

75-Ohm In-Line Coaxial Attenuator (Optional)

A 75-ohm in-line coaxial attenuator may be required to tune the signal between the 6E3 line card and the far-end equipment if the line card is experiencing line code violations (LCVs). LCVs occur when the far-end equipment transmit signal saturates the front-end receiver of the 6E3 line card.

Table 2-1 6E3 Line Card Software Requirements
Router Platform	Recommended Minimum Cisco IOS Release
Cisco 7304 Router¹	Cisco IOS Release 12.2(20)S1 or a later release of Cisco IOS Release 12.2(20)S1

Cisco offers an attenuator kit (ATTEN-KIT-PA=) that contains five attenuators with fixed values ranging from 3 dB to 20 dB. For more information on the attenuator kit, go to Installing the 75-Ohm In-line Coaxial Attenuator at the following URL:

Safety Guidelines

This section provides safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring.

Safety Warnings

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

Warning Definition


Warning	IMPORTANT SAFETY INSTRUCTIONS 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. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071 SAVE THESE INSTRUCTIONS
Waarschuwing	BELANGRIJKE VEILIGHEIDSINSTRUCTIES 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 de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen. BEWAAR DEZE INSTRUCTIES
Varoitus	T�RKEIT� TURVALLISUUSOHJEITA T�m� varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin k�sittelet laitteistoa, huomioi s�hk�piirien k�sittelemiseen liittyv�t riskit ja tutustu onnettomuuksien yleisiin ehk�isytapoihin. Turvallisuusvaroitusten k��nn�kset l�ytyv�t laitteen mukana toimitettujen k��nnettyjen turvallisuusvaroitusten joukosta varoitusten lopussa n�kyvien lausuntonumeroiden avulla. S�ILYT� N�M� OHJEET
Attention	IMPORTANTES INFORMATIONS DE S�CURIT� Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entra�ner des blessures ou des dommages corporels. Avant de travailler sur un �quipement, soyez conscient des dangers li�s aux circuits �lectriques et familiarisez-vous avec les proc�dures couramment utilis�es pour �viter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de s�curit� traduites qui accompagnent cet appareil, r�f�rez-vous au num�ro de l'instruction situ� � la fin de chaque avertissement. CONSERVEZ CES INFORMATIONS
Warnung	WICHTIGE SICHERHEITSHINWEISE Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen f�hren kann. Machen Sie sich vor der Arbeit mit Ger�ten mit den Gefahren elektrischer Schaltungen und den �blichen Verfahren zur Vorbeugung vor Unf�llen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen �bersetzung in den �bersetzten Sicherheitshinweisen, die zusammen mit diesem Ger�t ausgeliefert wurden. BEWAHREN SIE DIESE HINWEISE GUT AUF.
Avvertenza	IMPORTANTI ISTRUZIONI SULLA SICUREZZA Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento. CONSERVARE QUESTE ISTRUZIONI
Advarsel	VIKTIGE SIKKERHETSINSTRUKSJONER Dette advarselssymbolet betyr fare. Du er i en situasjon som kan f�re til skade p� person. F�r du begynner � arbeide med noe av utstyret, m� du v�re oppmerksom p� farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for � forhindre ulykker. Bruk nummeret i slutten av hver advarsel for � finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten. TA VARE P� DISSE INSTRUKSJONENE
Aviso	INSTRU��ES IMPORTANTES DE SEGURAN�A Este s�mbolo de aviso significa perigo. Voc� est� em uma situa��o que poder� ser causadora de les�es corporais. Antes de iniciar a utiliza��o de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos el�tricos e familiarize-se com as pr�ticas habituais de preven��o de acidentes. Utilize o n�mero da instru��o fornecido ao final de cada aviso para localizar sua tradu��o nos avisos de seguran�a traduzidos que acompanham este dispositivo. GUARDE ESTAS INSTRU��ES
�Advertencia!	INSTRUCCIONES IMPORTANTES DE SEGURIDAD Este s�mbolo de aviso indica peligro. Existe riesgo para su integridad f�sica. Antes de manipular cualquier equipo, considere los riesgos de la corriente el�ctrica y familiar�cese con los procedimientos est�ndar de prevenci�n de accidentes. Al final de cada advertencia encontrar� el n�mero que le ayudar� a encontrar el texto traducido en el apartado de traducciones que acompa�a a este dispositivo. GUARDE ESTAS INSTRUCCIONES
Varning!	VIKTIGA S�KERHETSANVISNINGAR Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utf�r arbete p� n�gon utrustning m�ste du vara medveten om farorna med elkretsar och k�nna till vanliga f�rfaranden f�r att f�rebygga olyckor. Anv�nd det nummer som finns i slutet av varje varning f�r att hitta dess �vers�ttning i de �versatta s�kerhetsvarningar som medf�ljer denna anordning. SPARA DESSA ANVISNINGAR





Aviso	INSTRU��ES IMPORTANTES DE SEGURAN�A Este s�mbolo de aviso significa perigo. Voc� se encontra em uma situa��o em que h� risco de les�es corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos el�tricos e familiarize-se com as pr�ticas padr�o de preven��o de acidentes. Use o n�mero da declara��o fornecido ao final de cada aviso para localizar sua tradu��o nos avisos de seguran�a traduzidos que acompanham o dispositivo. GUARDE ESTAS INSTRU��ES
Advarsel	VIGTIGE SIKKERHEDSANVISNINGER Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. F�r du begynder arbejde p� udstyr, skal du v�re opm�rksom p� de involverede risici, der er ved elektriske kredsl�b, og du skal s�tte dig ind i standardprocedurer til undg�else af ulykker. Brug erkl�ringsnummeret efter hver advarsel for at finde overs�ttelsen i de oversatte advarsler, der fulgte med denne enhed. GEM DISSE ANVISNINGER

Electrical Equipment Guidelines

•

Before beginning any procedure requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working.

•

Do not perform any action that creates a potential hazard to people or makes the equipment unsafe; carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.

Telephone Wiring Guidelines

Use the following guidelines when working with any equipment that is connected to telephone wiring or to other network cabling:

•

Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

•

Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. Line cards and processor modules consist of printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the board from ESD, use a preventive antistatic strap during handling.

•

Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.

•

When installing a component, use any available ejector levers or captive installation screws to properly seat the bus connectors in the backplane or midplane. These devices prevent accidental removal, provide proper grounding for the system, and help to ensure that bus connectors are properly seated.

•

When removing a component, use any available ejector levers or captive installation screws to release the bus connectors from the backplane or midplane.

•

Handle carriers by available handles or edges only; avoid touching the printed circuit boards or connectors.

•

Place a removed board component-side-up on an antistatic surface or in a static shielding container. If you plan to return the component to the factory, immediately place it in a static shielding container.

•

Avoid contact between the printed circuit boards and clothing. The wrist strap protects components from ESD voltages on the body only; ESD voltages on clothing can still cause damage.

Table Of Contents

Preparing for Installation