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10 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis

Replacing the CI in the Cisco 7505

Removing and Replacing the Power Harness Cover and Power Harness

You must remove the power harness cover to access either the power supply or the CI. A single M-3
Phillips screw secures the power harness cover to the backplane cover.

Warning

Before working on a system that has an on/off switch, turn OFF the power and unplug

the power cord. (For a translation of this safety warning, refer to the section “Translated Safety
Warnings” on page 32.)

Follow these steps to remove and replace the power harness cover:

Step 1

Turn OFF the system power switch and unplug the power cable from the power source.

Step 2

To remove the chassis cover panel, follow Steps 1 and 2 in the section “Removing and
Replacing the Chassis Cover Panel” on page 6.

Step 3

Use a number 1 Phillips screwdriver to remove the M-3 screw that secures the top of the
harness cover to the backplane. (See the cutaway in Figure 5.)

Figure 5

Removing the Power Harness Cover

Step 4

Holding the cover with one hand, tilt the top of the cover back toward you, then pull it
upward slightly so that the tab clears the slot in the chassis floor.

Step 5

When the tab clears the slot, pull the cover straight back off the harness and out of the
chassis.

Note

Move on to the required procedure, depending on the work you need to do. Then to replace

the power harness and power harness cover, proceed to Step 6, which follows.

Power harness
cover

Arbiter/chassis
interface board
cover

Power supply

Fan tray

Removing power harness cover

H2867

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Содержание Catalyst 7500 Series

Страница 1: ...s power supply status Monitors fan blower status Monitors temperature sensors on the RSP1 Provides router power up down control Provides power supply power down control Provides temperature output for fan speed control Monitors power supply currents Warning Before working on a system that has an on off switch turn OFF the power and unplug the power cord For a translation of this safety warning ref...

Страница 2: ...n important safety warning and reference information respectively refer to them as required and suggested Translated Safety Warnings page 32 Cisco Connection Online page 39 Installation Prerequisites The following sections discuss important installation prerequisites Safety Guidelines This section lists safety guidelines you should follow when working with any equipment that connects to electrical...

Страница 3: ... from the DC circuit To ensure that all power is OFF locate the circuit breaker on the panel board that services the DC circuit switch the circuit breaker to the OFF position and tape the switch handle of the circuit breaker in the OFF position For a translation of this safety warning refer to the section Translated Safety Warnings on page 32 Do not work alone if potentially hazardous conditions e...

Страница 4: ...y avoid touching the board or connector Place a removed CI board side up on an antistatic surface or in a static shielding bag If the component will be returned to the factory immediately place it in a static shielding bag Avoid contact between the CI and clothing The wrist strap only protects the board from ESD voltages on the body ESD voltages on clothing can still cause damage Caution For safet...

Страница 5: ... panel and remove the fan tray power harness cover and backplane cover You must remove the fan tray in order to remove the backplane cover To remove the fan tray you need only remove a single M4 pan head screw that anchors the fan tray to the interior chassis frame The fan tray slides into the right side of the chassis when viewing the chassis from the noninterface processor end Because the power ...

Страница 6: ...ed which can result in an overtemperature condition Warning Before working on a system that has an on off switch turn OFF the power and unplug the power cord For a translation of this safety warning refer to the section Translated Safety Warnings on page 32 Follow these steps to remove and replace the chassis cover panel Step 1 Use a 3 16 inch flat blade screwdriver to loosen the two captive screw...

Страница 7: ...so a bracket on the chassis ceiling helps guide the tray into the chassis Follow these steps to replace the fan tray Step 1 Turn OFF the system power switch and unplug the power cable from the power source Step 2 To remove the chassis cover panel follow Steps 1 and 2 in the section Removing and Replacing the Chassis Cover Panel on page 6 Step 3 Attach an ESD preventive strap between you and an unp...

Страница 8: ...the chassis Keep the tray as straight as possible or you may have trouble inserting it into the chassis Figure 3 Replacing the Fan Tray Note Before inserting the fan tray compare the hardware inside the chassis to that shown in Figure 4 The runner on the bottom of the fan tray has to slide along in the track on the floor At the same time the runner on the top of the tray has to slide through the n...

Страница 9: ...rackets push the tray slightly toward the left when inserting it again Step 10 Slide the tray back into the chassis pushing it all the way in until the circuit board snaps into the backplane socket Step 11 Replace the M4 screw in the tab and tighten it with a number 2 Phillips screwdriver See the cutaway view of this screw in Figure 3 on page 8 Step 12 To replace the cover panel follow Steps 3 thr...

Страница 10: ... power source Step 2 To remove the chassis cover panel follow Steps 1 and 2 in the section Removing and Replacing the Chassis Cover Panel on page 6 Step 3 Use a number 1 Phillips screwdriver to remove the M 3 screw that secures the top of the harness cover to the backplane See the cutaway in Figure 5 Figure 5 Removing the Power Harness Cover Step 4 Holding the cover with one hand tilt the top of t...

Страница 11: ...3 through 6 in the section Removing and Replacing the Chassis Cover Panel on page 6 This completes the power harness cover removal and replacement procedures Removing and Replacing the Backplane Cover The backplane cover provides EMI and ground protection for the backplane the arbiter and the CI To access these components you must remove the backplane cover You need number 1 and number 2 Phillips ...

Страница 12: ...ed carefully guide the backplane cover out and away from the backplane arbiter and CI See Figure 6 Note Depending on the replacement procedures you need to perform refer to the appropriate sections and then to replace the backplane cover proceed to Step 5 which follows Step 5 To replace the backplane cover carefully guide the cover into the chassis opening over the arbiter and CI over the guide pi...

Страница 13: ... replace the cover panel follow Steps 3 through 6 in the section Removing and Replacing the Chassis Cover Panel on page 6 This completes the backplane cover removal and replacement procedure Removing and Replacing the CI The CI shown in Figure 7 is a printed circuit board mounted to the noninterface processor side of the backplane behind the backplane cover On the back backplane side of the chassi...

Страница 14: ... procedure Figure 8 Removing and Replacing the CI Installing the New CI When you replace the CI hold it in the orientation shown in Figure 8 with the connector along the top and facing the backplane Position the board over the backplane connector and align the four standoff holes in the corners of the board with the four standoffs Follow these steps to replace the CI Step 1 Attach an ESD preventiv...

Страница 15: ...to replace the CI in the Cisco 7507 Depending on your installation you might need to remove the Cisco 7507 from the rack in which it is installed To replace the CI in the Cisco 7507 you must first remove the front chassis panels Removing the Front Chassis Panels You must remove the top and bottom front chassis panels to access the chassis interior to replace the CI board Warning Before working on ...

Страница 16: ... panels perform the following steps Step 1 Grasp the bottom edge of the bottom chassis panel Step 2 Pull the bottom of the panel out about one inch then place your fingers behind the sides of the panel and pull it off the chassis See Figure 9 Figure 9 Removing the Bottom Front Panel UPPER POWER LOWER POWER NORMAL Cisco 7000 H1335a ...

Страница 17: ...ide of the bezel See Figure 10a Step 6 While pushing slightly against the top of the panel to constrain it pivot the bottom edge of the frame outward about two inches See Figure 10a Because of the tightly compressed EMI shielding you will have to use significant force to pull the bottom of the panel outward However be careful that you do not pull the panel more than two inches away from the chassi...

Страница 18: ... side of the backplane On the back backplane side of the chassis is a connector into which the CI plugs directly into the backplane Figure 11 Chassis Interface MAS 7500CI Note Replace the CI only if it fails This procedure assumes that you have already removed the front chassis panels If not refer to the appropriate procedures in this section to remove these items H2877 Chassis interface Standoff ...

Страница 19: ...e the CI board which is mounted to the back of the backplane The CI is oriented vertically attached to the backplane via the edge connector and is located to the right of the dual arbiter as shown in Figure 12 Figure 12 Location of the CI on the Cisco 7507 Backplane Step 4 Carefully remove the CI from its backplane connector Step 5 Place the CI in an antistatic bag This completes the CI removal pr...

Страница 20: ...top of the panel to make sure it is lined up with the top of the chassis opening Failure to align the panel at this point can result in equipment damage when performing the next step Step 4 Push the panel upward to push the tabs into the slots see Figure 13a and pivot the bottom of the panel toward the chassis until the panel frame meets the chassis See Figure 13b Maintain a steady upward pressure...

Страница 21: ...507 Figure 13 Replacing the Top Front Panel Cisco 7000 UPPER POWER LOWER POWER NORMAL Cisco 7000 UPPER POWER LOWER POWER NORMAL Cisco 7000 UPPER POWER LOWER POWER NORMAL H1460a UPPER POWER LOWER POWER NORMAL Cisc Cisc Guide tab slides up into slot in chassis a b c d Cisco 7000 UPPER POWER LOWER POWER NORMAL e ...

Страница 22: ...move the chassis covers then remove the backplane maintenance cover and then you can replace the CI Removing and Replacing the Chassis Cover Panels Each cover panel has four fasteners that secure the panels to the front of the chassis The following procedures describe how to remove and replace the front cover panels on the Cisco 7513 chassis Warning Before working on a system that has an on off sw...

Страница 23: ...g the CI in the Cisco 7513 Follow these steps to remove and replace the chassis cover panel Step 1 Use a 3 16 inch flat blade screwdriver and gently loosen the top of each cover panel See Figure 14 Figure 14 Removing the Chassis Cover Panels H3091 POWER A POWER B NORMAL Cisco 7500SERIES ...

Страница 24: ...ard away from the chassis Repeat this for the bottom panel Proceed to the section Removing and Replacing the Backplane Maintenance Cover on page 25 Step 3 To replace the cover panels align the pins on the bottom panel with the holes in the chassis and push the panel against the chassis See Figure 15 Repeat this for the top panel Figure 15 Replacing the Chassis Cover Panels H3092 POWER A POWER B NO...

Страница 25: ...r You need a number 2 Phillips screwdriver to remove the cover screws Following is the procedure for removing and replacing the backplane maintenance cover Note This procedure assumes you have already removed the front panels If not refer to the appropriate procedures in this section to remove these items Step 1 Attach an ESD preventive strap between you and an unpainted chassis surface Step 2 Loo...

Страница 26: ... 16 Step 5 Align the cover then tighten all ten screws that secure it to the chassis This completes the backplane maintenance cover removal and replacement procedure Removing and Replacing the CI The CI shown in Figure 17 provides environmental monitoring and logic functions for the Cisco 7513 Figure 17 Chassis Interface MAS 7500CI Note Replace the CI only if it fails This procedure assumes to hav...

Страница 27: ...emoving the CI Follow these steps to remove the CI Step 1 Turn OFF the power switch on each power supply and disconnect the power cable from each power source and power supply Step 2 Attach an ESD preventive strap between you and an unpainted chassis surface Step 3 The CI is held in place by a connector which is connected to the backplane and four screws Use a number 1 Phillips screwdriver to remo...

Страница 28: ...igure 19 Removing and Replacing the CI Cutaway View Replacing the CI When you replace the CI hold it in the orientation shown in Figure 19 Position the board over the backplane connector and align the four standoff holes in the corners of the board with the four standoffs Follow these steps to replace the CI Step 1 Attach an ESD preventive strap between you and an unpainted chassis surface Caution...

Страница 29: ... all router components except the failed CI were operating properly Step 1 Turn the system power switch back ON The DC OK LED should go on immediately If it does proceed to the next step If it does not do the following First ensure that the power switch is completely in the ON position Check the power cable ensure that the cord is fully inserted in the power supply receptacle and that it is proper...

Страница 30: ... a service representative if you need to call for technical assistance If the NORMAL LED on the RSP still remains off contact a service representative for further instructions refer to the note following the section Cisco Connection Online on page 39 Note If after several attempts the CI does not appear to be functioning properly or if you experience trouble with the installation for instance if t...

Страница 31: ...s slots XXXXX card inlet hotpoint exhaust RSP 4 32C 89F 46C 114F 48C 118F Shutdown temperature source is hotpoint on RSP 4 requested RSP 4 12V measured at 12 21 5V measured at 5 15 12V measured at 12 03 24V measured at 23 87 2 5 reference is 2 49 Router Note The preceding example display is from a Cisco 7505 the displays from the Cisco 7507 and Cisco 7513 will vary in format but will display the s...

Страница 32: ...a ou ligue e desligue cabos durante períodos de mau tempo trovoada Advertencia No operar el sistema ni conectar o desconectar cables durante el transcurso de descargas eléctricas en la atmósfera Varning Vid åska skall du aldrig utföra arbete på systemet eller ansluta eller koppla loss kablar Chassis Warning Disconnecting Telephone Network Cables Warning Before opening the chassis disconnect the te...

Страница 33: ...t stopcontact te halen Varoitus Ennen kuin teet mitään sellaiselle järjestelmälle jossa on kaksiasentokytkin katkaise siitä virta ja kytke virtajohto irti Attention Avant de travailler sur un système équipé d un commutateur marche arrêt mettre l appareil à l arrêt OFF et débrancher le cordon d alimentation Warnung Bevor Sie an einem System mit Ein Aus Schalter arbeiten schalten Sie das System AUS ...

Страница 34: ... ist Bei Systemen mit Netzschalter liegen Leitungsspannungen im Netzgerät vor wenn das Netzkabel angeschlossen ist auch wenn das System ausgeschaltet ist Bei Systemen ohne Netzschalter liegen Leitungsspannungen im Netzgerät vor wenn das Netzkabel angeschlossen ist Avvertenza Non toccare l alimentatore se il cavo dell alimentazione è collegato Per i sistemi con un interruttore di alimentazione tens...

Страница 35: ...terruttore automatico sulle unità CC Advarsel Før det utføres arbeid på kabinettet eller det arbeides i nærheten av str mforsyningsenheter skal str mledningen trekkes ut pŒ vekselstrømsenheter og strømmen kobles fra ved strømbryteren på likestrømsenheter Aviso Antes de trabalhar num chassis ou antes de trabalhar perto de unidades de fornecimento de energia desligue o cabo de alimentação nas unidad...

Страница 36: ... tape the switch handle of the circuit breaker in the OFF position Waarschuwing Voordat u een van de onderstaande procedures uitvoert dient u te controleren of de stroom naar het gelijkstroom circuit uitgeschakeld is Om u ervan te verzekeren dat alle stroom UIT is geschakeld kiest u op het schakelbord de stroomverbreker die het gelijkstroom circuit bedient draait de stroomverbreker naar de UIT pos...

Страница 37: ...rning After wiring the DC power supply remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the ON position Waarschuwing Nadat de bedrading van de gelijkstroom voeding aangebracht is verwijdert u het plakband van de schakelaarhendel van de stroomverbreker en schakelt de stroom weer in door de hendel van de stroomverbreker naar de...

Страница 38: ...dt Varoitus Lue asennusohjeet ennen järjestelmän yhdistämistä virtalähteeseen Attention Avant de brancher le système sur la source d alimentation consulter les directives d installation Warnung Lesen Sie die Installationsanweisungen bevor Sie das System an die Stromquelle anschließen Avvertenza Consultare le istruzioni di installazione prima di collegare il sistema all alimentatore Advarsel Les in...

Страница 39: ... warranty or covered by a maintenance contract contact Cisco s Technical Assistance Center TAC at 800 553 2447 408 526 7209 or tac cisco com To obtain general information about Cisco Systems Cisco products or upgrades contact 800 553 6387 408 526 7208 or cs rep cisco com This document is to be used in conjunction with the Cisco 7505 Hardware Installation and Maintenance Cisco 7507 Hardware Install...

Страница 40: ...40 Replacing the Chassis Interface CI Board in the Cisco 7500 Series Chassis Cisco Connection Online ...

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