Chapter

Connecting Power for AC Systems

Connecting Power for AC Systems

This section describes how to connect AC power to the MGX 8220 shelf.

AC Input Power

The AC power assembly can be configured with either a single primary input AC source, or optional primary and secondary (redundant) input AC sources. AC power is supplied through connectors on the rear panel.

Available Power

The AC power assembly holds up to six independent 875W power supplies, each of which supplies power to a common output bus. Power is then available for MGX 8220 shelves through connectors on the rear panel.

The number of power supplies that are configured in the assembly depends upon the number of MGX 8220 shelves that have to be supported. The maximum number of MGX 8220 shelves that can be supported by a single AC power assembly is four.

In a fully loaded configuration each MGX 8220 shelf requires 500W. Therefore, a power assembly equipped with three power supplies, totaling 2625W, can supply enough power for a four-shelf rack. A power assembly equipped with four power supplies, totaling 3500W, provides enough power for a four-shelf rack even in the event of a single power supply failure. More power supplies provide even more protection in the event of multiple power supply failures.

Monitoring Power Supply Status

In addition to supplying power, each power supply provides a signal that indicates the status of the power supply.

Rear Panel Connectors

The rear panel has

•Primary AC input connector and an optional secondary AC input connector.

•Group of four output connectors on the right (looking toward the rear panel), each of which can be used to connect to an MGX 8220 shelf. Connectors 1A to 3A provide power and power supply monitoring. Connector 4A provides power only.

•Group of three output connectors on the left (looking toward the rear panel), each of which can be used to connect to an MGX 8220 shelf to provide power supply monitoring.

As shown in Figure 7-13,power is available at each of the four connectors on the right of the rear panel. A cable from any of these four connectors can be connected to any shelf in the rack.

 

 

Cisco MGX 8220 Installation and Configuration

 

 

 

 

 

 

 

Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003

 

 

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Cisco Systems MGX 8220 Connecting Power for AC Systems, AC Input Power, Available Power, Monitoring Power Supply Status
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MGX 8220 specifications

The Cisco Systems MGX 8220 is a versatile, high-performance media gateway that has become an integral component in the telecommunications infrastructure. Designed to facilitate the transition from traditional circuit-switched networks to advanced packet-switched environments, the MGX 8220 supports a wide array of voice, video, and data services, making it an essential tool for service providers and enterprises seeking to enhance their network capabilities.

One of the key features of the MGX 8220 is its robust signaling and media processing capabilities. Equipped with support for both Voice over IP (VoIP) and traditional telephony protocols, this gateway enables seamless integration of different communication formats. It boasts a modular architecture, which allows for the addition or removal of various line cards to meet changing demands and technology advancements. This modularity provides operators with the flexibility to scale their services without significant overhauls to their existing infrastructure.

The MGX 8220 is capable of delivering high-density media handling for a multitude of services. With its support for ATM and IP networks, the gateway can handle TDM (Time-Division Multiplexing) to packet voice conversions efficiently. It is designed to optimize network resources by dynamically allocating bandwidth based on traffic requirements, thus ensuring efficient use of network resources and improved performance.

Another significant characteristic of the MGX 8220 is its enhanced quality of service (QoS) features. This capability ensures that voice and video traffic is prioritized appropriately, minimizing latency and jitter while maximizing overall call quality. By employing sophisticated traffic management techniques, the MGX 8220 can deliver a superior user experience, which is critical for any service provider aiming to offer competitive communication solutions.

Furthermore, the gateway includes built-in security features to protect against unauthorized access and ensure the integrity of sensitive data. This includes encryption for voice and video transmission, as well as support for secure signaling protocols.

Overall, the Cisco Systems MGX 8220 stands out as a comprehensive media gateway solution, providing essential functionalities for modern communication needs. Its combination of modularity, high-density processing, effective QoS management, and security features makes it a compelling choice for organizations looking to modernize their telecommunications infrastructure while ensuring reliability and performance. As businesses continue to evolve and demand more from their networks, the MGX 8220 offers a pathway to future-ready communications.
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