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This publication contains instructions for installing the DC Power Entry Module (PEM) in the Cisco 10000 Edge Services Router (ESR). If you are not familiar with the Cisco 10000 router, see the Cisco 10000 ESR System Description, and the Cisco 10000 ESR Hardware Installation Guide for additional information.
The following sections are included in this configuration guide:
The DC PEM provides filtering and supplies DC power to the chassis electronics (Figure 1). DC PEMs receive input power (-48 VDC) from the building centralized power source through terminal block connections located on the rear of the chassis.
There are two PEM bays in the chassis; however, you only need one PEM to power the router. You can install an additional PEM for power redundancy.
Before you perform any of the procedures in this guide, Cisco recommends that you:
Before you begin the installation or replacement procedure, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment. Before you install, configure, or perform maintenance on the router, you should also review the safety warnings listed in the Cisco 10000 ESR Hardware Installation Guide.
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. The following warning is an example of a safety warning. It identifies the warning symbol and associates it with a bodily injury hazard.
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Warning 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. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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Note If you need translations of the safety warning, see the Cisco 10000 ESR Hardware Installation Guide. |
The Cisco 10000 system is hot-swappable, which means you can remove and replace a defective PEM while the system is operating (assuming that your system has a second DC PEM installed for redundancy). It is not necessary to notify the software or reset the system power. This feature allows you to add, remove, or replace a second PEM while the system maintains all routing information and ensures session preservation.
You need the following tools and equipment to install an DC PEM:
This section describes how to add or replace a DC PEM in the Cisco 10000 chassis. It contains the following procedures:
Use the following procedure to remove the front cover from the system. If your system does not use a front cover, go to "Installing a Second DC PEM" section, or "Replacing a DC PEM" section.
Repeat this procedure for all four bezel plugs and then remove the plugs.
Step 2 Remove the cover by lifting it up slightly and then pulling it toward you (Figure 3).
Step 3 Continue installing or replacing the DC PEM:
Use the following procedure to install a second DC PEM in the bottom power bay for redundancy.
Step 2 Loosen the captive screws to remove the blank cover from the bottom power bay (Figure 5).
Step 3 Install the new DC PEM all the way into the power bay to ensure a secure connection to the backplane, and then tighten the captive screws (Figure 6).
Step 4 Loosen the captive screw on the rear safety cover and tilt back the cover (Figure 7).
Step 5 Remove the safety cover by lifting it up and out from the chassis (Figure 8).
Step 6 Connect the DC PEM power leads:
Step 7 Secure the power cabling to the chassis by feeding a tie-wrap through the slot on the side of the chassis and binding the cables (Figure 10).
Step 8 Replace the rear safety cover, making sure that the power cables exit through the holes on the side of the cover (Figure 10).
Step 9 Set the power switch to the on (|) position (Figure 11).
Step 10 Replace the front cover.
Use the following procedure to replace a DC PEM.
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Note The illustrations in this guide show how to replace the DC PEM from the bottom power bay. The procedure is the same to replace a DC PEM in the top power bay. |
Step 2 Power off the PEM you are replacing (Figure 13).
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Caution Do not power off both DC PEMs in a redundant system or the system shuts down and all data traffic stops. Only power off the DC PEM you are replacing. |
Step 3 Loosen the captive screws on the DC PEM and pull the PEM from the chassis using the handle on the faceplate (Figure 14).
Step 4 Install the new DC PEM all the way into the power bay to ensure a good connection to the backplane, and tighten the captive screws (Figure 15).
Step 5 Set the power switch to the on (|) position (Figure 16).
Step 6 Replace the front cover.
Table 1 contains troubleshooting information for the DC PEM.
| Symptom | Description |
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System fails to power on | Check that:
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FAULT LED (yellow) is on | The PEM is not operating correctly (see the Cisco 10000 ESR Troubleshooting Guide). |
MISWIRE LED (yellow) is on | -48V and -48V return leads are reversed (see Step 5 of the "Installing a Second DC PEM" section). |
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 in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
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 customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
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Note If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact the Cisco 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. |
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Posted: Fri Apr 28 08:20:06 PDT 2000
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