Cisco MAS-7KLED - Manual
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Table of Contents:
- Page 2 – Product Overview; Top and Bottom Front Chassis Panels; Figure 1
- Page 3 – LED Board Location and Description; Figure 2
- Page 5 – Cisco 7000 and Cisco 7507 LED Board Replacement Instructions 5; Prerequisites
- Page 6 – Safety Guidelines; Do not work alone when potentially hazardous conditions exist.; Use caution when installing or modifying telephone lines.; Warning; Preventing Electrostatic Discharge Damage; Following are guidelines for preventing ESD damage:
- Page 7 – should be within the range of 1 and 10 megohms.; List of Parts and Tools; Removing and Replacing the Front Chassis Panels; The following warning is for units with DC-input power supplies.
- Page 8 – Removing the Panels; To remove the front panels, perform the following steps:; Figure 5
- Page 9 – Replacing the Panels; To replace the front panels, perform the following steps:
- Page 11 – Cisc
- Page 12 – Removing and Replacing the LED Board; Removing the LED Board; To remove the existing LED board, perform the following steps:
- Page 13 – Place the board in an antistatic bag if returning it to the factory.; Installing a New LED Board; To install the new LED board, perform the following steps:; Caution; Handle the LED board by the edges only to avoid damage from ESD.
- Page 14 – Installation Checkout; Note; This completes the installation checkout.
- Page 15 – Translated Safety Warnings; Lightning Activity Warning
- Page 16 – Power Supply Disconnection Warning; AC units disconnect the power at the circuit breaker on DC units.
- Page 17 – Electric Shock Warning; disconnect the two power supply cords before servicing the unit.; DC Power Disconnection Warning
- Page 18 – DC Power Connection Warning
- Page 19 – Installation Warning; strömförsörjningsenhet.
- Page 20 – Cisco Information Online; You can access CIO in the following ways:; To obtain general
1
Doc. No.
Copyright © 1995
Cisco Systems, Inc.
All rights reserved.
Cisco 7000 and Cisco 7507
LED Board Replacement Instructions
78-1060-02
Product Number: MAS-7KLED
Customer Order Number: DOC-781060=
This document contains instructions for replacing the top and bottom front chassis panels and the
LED board in the Cisco 7000 and Cisco 7507.
Note
The LED board installation and functionality are identical for both chassis; therefore,
throughout this document, both chassis are referred to as the chassis, with differences clearly noted.
The top and bottom front chassis panels comprise plastic bezels on a metal frame and should be
replaced if they become warped or broken. The LED board, which contains the light-emitting diodes
(LEDs) for the three front-panel system status indicators (normal, upper power, and lower power), is
mounted inside the front of the chassis.
The sections in this document include the following:
•
•
•
Removing and Replacing the Front Chassis Panels, page 7
•
Removing and Replacing the LED Board, page 12
•
Cisco Information Online, page 20
Caution
The following applies to Cisco 7000 chassis only: if you remove AC-input power supplies
from a Cisco 7000 and replace them with DC-input power supplies, you might need to replace the
LED board in the chassis, if it was shipped before November 1, 1994. In this earlier chassis, the LED
circuitry will not recognize and indicate the presence of the new DC-input power supplies. If
replacement is necessary, use this document to replace the LED board. (This document is also
available on UniverCD.)
If the chassis was shipped after November 1, 1994, no LED board replacement is required.
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Summary
2 Cisco 7000 and Cisco 7507 LED Board Replacement Instructions Product Overview Product Overview This section describes the top and bottom front chassis panels and the LED board. Top and Bottom Front Chassis Panels The top and bottom front chassis panels each comprise a plastic injected-molded bezel...
Cisco 7000 and Cisco 7507 LED Board Replacement Instructions 3 Product Overview LED Board Location and Description The LED board contains the three LEDs that report system software (normal) and power supply(upper power and lower power) status through semiopaque panels on the front of the chassis.Fig...
Cisco 7000 and Cisco 7507 LED Board Replacement Instructions 5 Prerequisites Prerequisites Before you begin an installation, review the safety guidelines in this section to avoid injuringyourself or damaging the equipment. Warning This warning symbol means danger. You are in a situation that could c...
