Troubleshooting the Power Subsystems

Router Shelf Power Subsystem

In the router shelf, check the following to help isolate a problem with the power subsystem:

•

•

Is the power OK LED on?

—If yes, the power source is good and the power supply is functional.

—If no, verify that the power cable is connected at both ends.

If the power OK LED remains off and the power switch is set correctly, suspect the power source or the power cable. Power OFF the system, connect the power cable to another power source, if available, then power ON the system. If the LED lights, the problem is the first power source.

—If the power OK LED does not light after you connect the power supply to a new power source, replace the power cord, then power ON the system. If the AC power (or input power) LED lights, return the first power cable for replacement.

—If the LED still does not light when the power supply is connected to a different power source with a new power cable, the power supply is probably faulty. If a second power supply is available, install it in the other power supply bay and contact a service representative for further instructions.

Is the power OK LED on for the second (redundant) power supply?

—If yes, proceed to the section “Troubleshooting the Cooling Subsystems.”

—If no, repeat each of the above procedures for the second power supply.

If you are unable to resolve the problem or you determine that either a power supply or chassis connector is faulty, contact a service representative for instructions.

Dial Shelf Power Subsystem

In the dial shelf, check the following to help isolate a problem with the power subsystem:

•

•

Is the first PEM power OK LED on?

—If yes, the power source is good and the PEM is functional. Verify that the second PEM power LED is on for power redundancy.

—If no, verify that the power cable is connected at both ends and check that you have wired the DC-input connections correctly.

If the DC-input connection is wired correctly, the miswire LED remains off.

If the miswire LED is on, the two DC conductors entering the PEM terminal block are reversed. Power OFF the power at your power source and reverse the connections.

—If neither the power nor the miswire LED is on, check the voltage at the input terminal block. If the voltage reading falls between –40 VDC and –60 VDC, replace the PEM.

If you are using the AC-input power shelf, are both power OK LEDs on?

—If yes, the power source is good and both power supplies are functional.

—If no, verify that the associated AC power cord is plugged in and the correct AC voltage (200 to 240 VAC) is present at the source.

—Verify that the fault LED is off.

If a power supply fault LED lights, the power shelf has detected an internal fault; the power supply is defective. You need to replace the power supply.

5-8Cisco AS5800 Universal Access Server Hardware Installation Guide

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Cisco Systems AS5800 manual Router Shelf Power Subsystem, Dial Shelf Power Subsystem
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AS5800 specifications

Cisco Systems has long been a leader in the networking and telecommunications field, and its AS5800 series of routers exemplify this tradition. The AS5800, along with the AS5850, AS5350, AS5400, and AS5300, provides robust solutions for service providers and enterprise-level networking applications. Each of these models has distinct features and characteristics that cater to the evolving demands of internet traffic and data processing.

The Cisco AS5800 is designed for high-capacity routing and optimized for broadband services. It supports a wide range of services, including voice, data, and video applications, making it a versatile option for service providers looking to deliver integrated solutions. It is equipped with advanced quality of service (QoS) features that ensure bandwidth is allocated effectively, holding strong even under heavy traffic conditions.

In comparison, the AS5850 offers superior processing capabilities and is typically utilized in larger-scale implementations. This model supports high-density interfaces, allowing numerous connections without compromising performance. Its architecture includes enhanced MPLS (Multiprotocol Label Switching) support, enabling more efficient traffic management and better utilization of network resources.

The AS5350 is known for its scalability and energy efficiency, ideal for voice-over-IP (VoIP) and media gateway applications. It supports various telephony features, such as protocol interworking and transcoding, making it a preferred choice for organizations focusing on digital voice technologies. The AS5300, while slightly older, continues to be a valuable asset for less demanding networks, offering reliable performance with VoIP capabilities and basic data applications.

The AS5400 bridges the gap between high-performance routing and operational efficiency. It incorporates Cisco's proprietary technologies to ensure seamless connectivity and robust failover systems. This model is highly regarded for its security features, protecting network integrity and providing peace of mind for businesses relying on sensitive data transfer.

Overall, Cisco’s AS5800 series showcases a progressive evolution of routing capabilities with enhanced features tailored for resilience, scalability, and performance. These routers not only address the technical needs of modern networks but also strategically position organizations for future growth in an increasingly digital world. Each model, with its unique attributes, continues to support the varied demands of global communication infrastructures.
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