Cisco 12012 Replacement Instructions Manual

Text of Cisco 12012 User Guide:

• 1 Doc. No. Cisco Systems, Inc. All rights reserved. 170 West Tasman Drive San Jose, CA 95134-1706 USA Cisco Systems, Inc. Corporate Headquarters Copyright © 1997-2002 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Product Number: PWR-GSR12-DC= Document Order Number: DOC-784330= This document contains instructions for installing or replacing

• 2 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Product Overview Figure 1 Cisco 12012—Front View The lower card cage, located behind the air filter, has five horizontal slots for switch fabric cards. The Cisco 12012 supports up to two DC-input power supplies in a power supply bay located below the lower card cage. (Refer to Figure 1

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 3 Product Overview Figure 2 Cisco 12012 DC-Input Power Supply Electrical and control line connections between the power supply and the Cisco 12012 backplane are made through a connector located at the back of the power supply. A three-lead terminal block mounted on the power supply faceplate provides connection points for an external circuit breaker alarm circuit. The source DC power cable attaches to the power supply through three pairs of threaded terminals (negative (–), positive (+), and ground) located on the power supply faceplate. Table 1 lists the DC-input power supply powe

• Cisco 12012, 4 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Product Overview The source DC power cable leads and lugs from the source DC service circuit breaker to the power supply must meet the following requirements: • Three power cables—4 AWG (American Wiring Guide), 0.204-inch (5.18-mm) diameter, high strand count. The cable length is dependent on your router location. This cable is not available from Cisco Systems: it is available from any commercial cable vendor. • Three power lugs—Must be dual-hole with .625-inch (15.86-mm) centers and able to f

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 5 Safety Guidelines The LEDs indicate the following: • Input OK LED—When the power switch is turned on, this green LED should go on immediately, indicating that the source DC voltage is within the operational range of –40.5 to –75 VDC. If the power switch is on and the LED remains off, either the source voltage is not present or exceeds the operational range. • Output fail LED—If this red LED is on, one or both of the power supply output voltages (+5 and –48 VDC

• Cisco 12012, 6 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Safety Guidelines 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 G

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 7 Safety Guidelines Safety with Electricity The line cards, route processor (RP), switch fabric cards, blower modules, and redundant power supplies are designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system. Follow these basic guidelines when working with any electrical equipment: • Before beginning any procedures requiring access to the interior of the Cisco 12012, locate the emergency power-off switch for th

• 8 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Tools and Parts Required Preventing Electrostatic Discharge Damage Electrostatic discharge (ESD) damage, which can occur when electronic boards or components are handled improperly, can result in intermittent or complete failures. Following are guidelines for preventing ESD damage: • Alwa

• Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 9 Removing and Replacing a DC-Input Power Supply Removing and Replacing a DC-Input Power Supply The Cisco 12012 supports up to two DC-input power supplies. In systems with dual power supplies, if one power supply fails, the remaining power supply maintains uninterrupted operat

• Cisco 12012, 10 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Removing and Replacing a DC-Input Power Supply Step 5 Grasp the power supply handle and slide the power supply halfway out of the bay. (Refer to Figure 5.) Figure 5 Removing a DC-Input Power Supply Caution The DC-input power supply weighs 19 lb (8.3 kg). Use two hands when handling the power supply. Step 6 Place your free hand underneath the power supply for support and slide the power supply completely out of the bay. Place the power supply face up on the floor in front of you. H10

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 11 Removing and Replacing a DC-Input Power Supply Step 7 Loosen the two screws securing the DC-input power supply front cover in place. Lift up slightly, then pull the front cover away from the power supply faceplate. Set the front cover aside. (Refer to Figure 6.) Figure 6 Removing the DC-Input Power Supply Front Cover H10489 Front cover DC-input power supply Standoff

• Cisco 12012, 12 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Removing and Replacing a DC-Input Power Supply Step 8 Remove the two screws that secure the power cable bracket to the power supply faceplate and remove the cable bracket. (Refer to Figure 7.) Set the bracket and screws aside. Figure 7 Removing the Power Cable Bracket H10665 Power cable bracket Bracket screws Standoff Circuit breaker alarm terminal block Source DC power cable

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 13 Removing and Replacing a DC-Input Power Supply Caution Before proceeding to the next step, verify that the source DC circuit breaker servicing the DC power supply you are removing is in the OFF position. Also verify that the power switch on the DC-input power supply is OFF (O). As an additional check, measure the voltages across the leads attached to the power supply you have removed. All readings should be zero volts. Step 9 Remove the outer nut and washer from each terminal and disc

• Cisco 12012, 14 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Removing and Replacing a DC-Input Power Supply If you plan to return the old power supply to the factory, repackage it in the shipping container you received with the replacement power supply. Replacing a Power Supply This procedure provides the steps necessary to replace a defective DC-input power supply or install a second DC-input power supply. If you are upgrading your Cisco 12012 with a second DC-input power supply for power supply redundancy, yo

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 15 Removing and Replacing a DC-Input Power Supply Note The color coding of the source DC power cable leads to the DC-input power supply depends on the color coding of the site DC power source. Typically, green or green/yellow is used for ground. Since there is no color code standard for the source DC wiring, care must be taken to ensure that the proper polarity is connected to the DC-input power supplies. In some cases the input cables might have a (+) and a (–) label. This is a relatively safe indication of the polarity. However, you must

• Cisco 12012, 16 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions Removing and Replacing a DC-Input Power Supply Step 12 If you are upgrading your Cisco 12012 with a second DC-input power supply, you must remove the two power supply blanks covering the empty power supply bay slots before installing the power supply. To remove a power supply blank: (a) Loosen the captive screw on the power supply blank faceplate that secures the power supply blank to the card cage assembly. (b) Slide the power supply blank out the front of the power supply bay. (c) Repeat steps (a) and (b) to remove the second power supply blank.

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 17 Checking the Installation Checking the Installation To complete the installation, turn ON (|) the power supply and observe the LEDs on the faceplate to verify that the power supply is operating properly. Then perform the following steps to check the installation: Note Turning the power supply switch to ON (|) engages a latch that secures the power supply in the power supply bay. Step 1 Check the following components to make sure they are secure: • Each power supply is inserted all the way into its bay, and the captive jackscrew is tightened. • Any unused power supply bay slots have

• Cisco 12012, 18 Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions FCC Class A Compliance FCC Class A Compliance This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used i

• Cisco 12012, Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions 19 Cisco Connection Online Cisco Connection Online Cisco Connection Online (CCO) is Cisco Systems’ primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services. Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco’s customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration not

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