Table Of Contents
Cisco 12404 Router AC Power System Procedures Guide
Product Number: PWR-GSR04-AC-PEM=, 12000/4-AC-PEM=
This document contains removal and replacement procedures for AC power entry modules (PEMs) used with the Cisco 12004 Router.
The following sections are included in this publication:
Prerequisites and Preparation
Before you perform any of the procedures in this guide, we recommend:
•Read the safety and ESD-prevention guidelines in this section.
•Ensure that you have all of the necessary tools and equipment before beginning the installation (see the "Installation Guidelines" section).
•Have access to the following documents during the installation:
–Regulatory Compliance and Safety Information for the Cisco 12000 Series Router publication that shipped with the router (78-4347-xx)
–Cisco 12404 Router Installation and Configuration Guide
For additional information about obtaining documentation see the "Obtaining Documentation" section.
Before you perform any procedure in this publication, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment.
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.
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.
Preventing Electrostatic Discharge Damage
Many router components can be damaged by static electricity. Not exercising the proper electrostatic discharge (ESD) precautions can result in intermittent or complete component failures. To minimize the potential for ESD damage, always use an ESD-preventive antistatic wrist strap (or ankle strap) and ensure that it makes good skin contact.
Note You should periodically check the resistance value of the ESD-preventive strap. Ensure the measurement is between 1 and 10 megohms.
Before performing the procedures in this guide, attach an ESD-preventive strap to your wrist and connect the leash to the chassis or to another grounded, bare metal surface as shown in Figure 1.
Figure 1 Connecting an ESD-preventive Wrist Strap to the Chassis
The AC PEM supports online insertion and removal (OIR), so you can remove and install the PEM while the system remains powered on without presenting an electrical hazard or damage to the system. This feature lets you replace the AC PEM while the system maintains all routing information and ensures session preservation.
Caution Although an AC PEM supports OIR and can be replaced without interruption to system operation, do not operate the system without the PEM for more than a few minutes.
Tools and Equipment
You need the following tools and this equipment to remove and replace the fan tray assembly:
•3/16-inch flat-blade screwdriver
•Number 1 Phillips screwdriver
Removing and Replacing an AC Power Entry Module
Refer to Figure 2 and use the following procedure to remove and replace an AC PEM.
Step 1 Power off the faulty PEM.
Step 2 Unplug the power supply cord from its AC outlet.
Step 3 Power off the circuit breaker assigned to that AC outlet.
Step 4 Release the bail latch and unplug the power cord from its receptacle. Verify that all status LEDs are off.
Step 5 Loosen the two captive screws that secure the PEM to the chassis.
Step 6 Remove the PEM from the chassis using the finger grips to pull it out.
Warning An AC PEM weighs approximately 11.0 lbs. (4.98 kg). Use both hands to remove it from the chassis.
Figure 2 AC PEM Components
AC PEM finger grips
Power cord receptacle
Tip If you plan to return a PEM to the factory, repackage it in the shipping container you received with the replacement PEM.
Step 7 Slide the replacement PEM into the bay until it is seated to the backplane connector.
Make sure the power switch is in the off (0) position.
Step 8 Tighten the two captive screws to secure the PEM to the chassis.
Electrical connections between the PEM the backplane connector are made automatically when the PEM is fully seated and the captive screws are tightened.
Step 9 Connect the power cord into the receptacle and place the bail latch over the power cord to secure it in place.
Step 10 Plug the power cord into its AC outlet.
Step 11 Power on the circuit breaker assigned to that AC outlet.
Step 12 Power on the PEM.
•The green Input OK and Output OK LEDs are on.
•The amber Output Fail LED is off.
See the "Troubleshooting the Installation" section if the PEM does not power on correctly.
Troubleshooting the Installation
Refer to Figure 3 and use the following procedure to troubleshoot the PEM installation.
Figure 3 AC PEM Status LEDs
PEM is powered on and operating correctly.
AC power source is present and operating within the specified limit.
PEM detects a fault condition causing it to shutdown.
Step 1 If the Input OK and Output OK LEDs are off, or if the Output Fail LED is on, check that the:
•PEM is firmly seated in the bay and the captive screws are tightened securely.
•AC power source circuit breaker is switched on.
•Power cord is firmly plugged into the AC power source receptacle.
•Power cord is firmly plugged into the PEM and the bail latch is secure over the plug.
•Power switch is set to the on (1) position.
Step 2 If the problem still exists after checking the items in Step 1, replace the PEM.
Step 3 If replacing the PEM does not correct the problem, contact a Cisco service representative for assistance.
Regulatory, Compliance, and Safety Information
This section includes regulatory, compliance, and safety information.
Translated Safety Warnings and Agency Approvals
The complete list of translated safety warnings and agency approvals is available in the Regulatory Compliance and Safety Information for Cisco 12000 Series Routers publication (78-4347-xx).
Electromagnetic Compatibility Regulatory Statements
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 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 you are required to correct the interference at your own expense.
Modifying the equipment without Cisco authorization may result in the equipment no longer complying with FCC requirements for Class A digital devices. In that event, your right to use the equipment may be limited by FCC regulation and you may be required to correct any interference to radio or television communication at your 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:
•Turn the television or radio antenna until the interference stops.
•Move the equipment to one side or the other of the television or radio.
•Move the equipment farther away from the television or radio.
•Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)
This apparatus complies with CISPR 22/EN55022 Class B radiated and conducted emissions requirements.
English Statement of Compliance
This class A digital apparatus complies with Canadian ICES-003.
French Statement of Compliance
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
This apparatus complies with EN55022 Class B and EN55024 standards when used as ITE/TTE equipment, and EN300386 for Telecommunications Network Equipment (TNE) in both installation environments, telecommunication centers and other indoor locations.
VCCI Class A Notice for Japan
Class A Notice for Hungary
Class A Notice for Taiwan and Other Traditional Chinese Markets
This is a Class A Information Product, when used in residential environment, it may cause radio frequency interference, under such circumstances, the user may be requested to take appropriate countermeasures. Statement 257
Class A Notice for Korea
This is a Class A Device and is registered for EMC requirements for industrial use. The seller or buyer should be aware of this. If this type was sold or purchased by mistake, it should be replaced with a residential-use type. Statement 294
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This document is to be used in conjunction with the Cisco 12404 Internet Router Installation and Configuration Guide.
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