Download Print this page

Cisco 7500 Series Replacing Manual

Chassis interface board
Hide thumbs

Advertisement

Quick Links

Doc. No.
78-1810-02
Replacing the Chassis Interface (CI) Board
in the Cisco 7500 Series Chassis
Product Number: MAS-7500CI=
This document contains instructions for replacing the chassis interface (CI) board in the Cisco 7500
series routers: Cisco 7505, Cisco 7507, and Cisco 7513. The CI mounts directly to the front side of
the backplane inside each chassis and provides the environmental monitoring (ENVM) and power
supply monitoring functions for the Cisco 7500 series routers. The CI isolates the CPU and system
software from chassis-specific variations. The CI attaches directly to the system backplane and is
considered to be a field-replaceable unit (FRU).
Following are the functions of the CI:
Warning
the power cord. (For a translation of this safety warning, refer to the section "Translated Safety
Warnings" on page 32.)
To prevent injury, you must turn off all system power before opening the chassis to access the CI.
The system backplane, which is exposed when the front panels are removed, carries dangerous
current levels. Opening the chassis exposes the power distribution wiring on the backplane. If the
power is not shut down, the high current present on the backplane becomes a hazard. Also, removing
the cover compromises the electromagnetic interference (EMI) integrity of the system. Before
opening the chassis, read the section "Safety Guidelines" on page 2.
Copyright © 1996
Cisco Systems, Inc.
All rights reserved.
Reports backplane type
Reports arbiter type
Monitors 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
Before working on a system that has an on/off switch, turn OFF the power and unplug
1

Advertisement

loading

  Related Manuals for Cisco 7500 Series

  Summary of Contents for Cisco 7500 Series

  • Page 1 This document contains instructions for replacing the chassis interface (CI) board in the Cisco 7500 series routers: Cisco 7505, Cisco 7507, and Cisco 7513. The CI mounts directly to the front side of the backplane inside each chassis and provides the environmental monitoring (ENVM) and power supply monitoring functions for the Cisco 7500 series routers.
  • Page 2: Installation Prerequisites

    Document Contents and Structure The CI is a FRU for the Cisco 7500 series chassis; therefore, we recommend that the Note following procedures be performed by Cisco-certified service personnel. Document Contents and Structure Following is the recommended order in which to use the information and procedures included in this publication: Before you begin the installation, review the information in the section “Installation...
  • Page 3 • Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface; use caution when installing or modifying telephone lines. Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 4: Preventing Electrostatic Discharge Damage

    • 3/16-inch, flat-blade screwdriver; Number 1 and Number 2 Phillips screwdrivers • CI board for your Cisco 7500 series chassis (MAS-7500CI=) 4 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 5 The following procedures describe how to replace the CI in the Cisco 7505. Depending on your installation, you might need to remove the Cisco 7505 from the rack in which it is installed. Figure 1 shows the interior of the Cisco 7505 at the front (noninterface processor end) of the chassis, with the front chassis panel removed to show the internal components.
  • Page 6 Using the guides as a pivot point, push the top half of the panel back toward the chassis Step 5 opening until the panel is flush with the edges of the chassis. 6 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 7: Removing And Replacing The Fan Tray

    Place the removed fan tray in an antistatic bag for storage or return to the factory. Step 7 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 8 L-bracket on the chassis ceiling. 8 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 9 This completes the fan tray replacement. Figure 4 Fan Tray Tracks and Guides L-bracket Fan tray, side view Fan tray, side view Card cage Chassis enclosure Bottom runner Track Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 10 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. 10 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 11 With the fan tray removed, remove the eight, 20-mm M-3 standoff screws that secure the Step 2 backplane cover to the arbiter and CI standoffs. These screws are located on the face of the backplane cover. (See Figure 6.) Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 12 Step 6 Loosely install the fifteen screws around the flange of the backplane cover. (See Figure 6.) Do not tighten these screws. 12 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 13 If not, refer to the appropriate procedures in this section to remove these items. Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 14 If you have trouble making the connection, ensure that the notch is at the top on both guide tabs (top and bottom) on the plug. 14 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 15 The following procedures describe how 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.
  • Page 16 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 16 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 17 When the bottom of the frame clears the chassis opening, keep your hands in the same Step 7 positions and pull the panel downward and off the chassis. (See Figure 10b.) With front chassis panels removed, the CI board is exposed to view. Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 18 Replace the CI only if it fails. This procedure assumes that you have already removed the Note front chassis panels. If not, refer to the appropriate procedures in this section to remove these items. 18 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 19 Carefully remove the CI from its backplane connector. Step 4 Place the CI in an antistatic bag. Step 5 This completes the CI removal procedure. Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 20 This completes the CI replacement procedure for the Cisco 7507. 20 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 21 Replacing the CI in the Cisco 7507 Figure 13 Replacing the Top Front Panel Guide tab slides up into slot in chassis Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 22 The following procedures describe how to replace the CI in the Cisco 7513. Depending on your installation, you might need to remove the Cisco 7513 from the rack in which it is installed. You must first remove the chassis covers, then remove the backplane maintenance cover, and then you can replace the CI.
  • Page 23 Follow these steps to remove and replace the chassis cover panel: Use a 3/16-inch flat-blade screwdriver and gently loosen the top of each cover panel. (See Step 1 Figure 14.) Figure 14 Removing the Chassis Cover Panels Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 24 To replace the cover panels, align the pins on the bottom panel with the holes in the chassis Step 3 and push the panel against the chassis. (See Figure 15.) Repeat this for the top panel. Figure 15 Replacing the Chassis Cover Panels 24 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 25 Attach an ESD-preventive strap between you and an unpainted chassis surface. Step 1 Step 2 Loosen the ten Phillips screws that secure the cover. (See Figure 16.) Figure 16 Removing the Backplane Maintenance Cover Loosen these screws (10) Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 26 Align the cover; then tighten all ten screws that secure it to the chassis. Step 5 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=)
  • Page 27 Access to the CI is partially blocked by a chassis panel. (See Figure 18.) Two of the screws Caution are below this panel and two are above it. To avoid damaging CI components, do not hit the CI against the chassis panel. Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 28 Access to the CI is partially blocked by a chassis panel. Two of the screws are below this Caution panel and two are above it. To avoid damaging CI components when you remove the CI, do not hit the CI against the chassis panel. 28 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 29 Verify that the power harness connector is fully seated in the backplane receptacle. Replace the power harness cover and chassis cover; then repeat step 1. If the LED still remains OFF, and you are checking the CI installation for a Cisco 7507 or Note Cisco 7513, contact a service representative for further instructions.
  • Page 30 Note The Cisco Internetwork Operating System (Cisco IOS) release displayed and the format of the display will vary depending on your system and the Cisco IOS release it is running. Step 4 At the user-level EXEC prompt, enter the enable command. The EXEC prompts you for a privileged-level password, as follows: Router>...
  • Page 31 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 same essential information. If any other messages are presented on the console screen (error messages, and so forth), contact a service representative for assistance;...
  • Page 32: Translated Safety Warnings

    Kontakt mit Telefonnetzspannungen zu vermeiden. Avvertenza Prima di aprire il telaio, scollegare i cavi della rete telefonica per evitare di entrare in contatto con la tensione di rete. 32 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 33: Power Disconnection Warning

    ¡Advertencia! (ON/OFF), cortar la alimentación y desenchufar el cable de alimentación. Varning! Slå AV strömmen och dra ur nätsladden innan du utför arbete på ett system med strömbrytare. Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 34: Power Supply Warning

    Apagado (OFF) y el cable de alimentación enchufado. En sistemas sin interruptor de alimentación, hay voltajes de línea en la fuente cuando el cable está enchufado. 34 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 35: Power Supply Disconnection Warning

    Varoitus Tässä laitteessa saattaa olla useampi kuin yksi virtajohto. Irrota molemmat virtalähteestä tulevat johtimet ennen laitteen huoltamista, jotta vältät sähköiskun vaaran. Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 36: Dc Power Disconnection Warning

    Per verificare che tutta l’alimentazione sia scollegata (OFF), individuare l’interruttore automatico sul quadro strumenti che alimenta il circuito CC, mettere l’interruttore in posizione OFF e fissarlo con nastro adesivo in tale posizione. 36 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 37 Después de cablear la fuente de alimentación de corriente continua, retirar la cinta ¡Advertencia! de la palanca del interruptor automático, y restablecer la alimentación cambiando la palanca a la posición de Encendido (ON). Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 38: Installation Warning

    Aviso Ver las instrucciones de instalación antes de conectar el sistema a la red de ¡Advertencia! alimentación. Varning! Läs installationsanvisningarna innan du kopplar systemet till dess strömförsörjningsenhet. 38 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...
  • Page 39: Cisco Connection Online

    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 Installation and Maintenance, and Cisco 7513 Hardware Installation and Maintenance publications. (1810ci75.fm) AtmDirector, Catalyst, CD-PAC, CiscoAdvantage, CiscoFusion, Cisco IOS, the Cisco IOS logo, CiscoLink, CiscoPro, the CiscoPro logo, CiscoRemote, the CiscoRemote logo,...
  • Page 40 Cisco Connection Online 40 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis...

This manual is also suitable for:

Mas-7500ci series