Dial Shelf Backplane

Dial Shelf Backplane

The Cisco AS5800 is equipped with a field-replaceable backplane module, which is designed to meet critical safety, isolation, and electromagnetic compatibility (EMC) requirements. The Cisco 5814 dial shelf backplane includes 14 slots that seat the ingress trunk cards, the modem cards, and the dial shelf controller cards. Figure 1-6shows the Cisco 5814 dial shelf with no cards installed, as viewed from the system front.

Figure 1-6 Cisco 5814 Dial Shelf Backplane—Front View

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The dial shelf backplane contains no active components, except for the nonvolatile random-access memory (NVRAM) used for system identification. This is located toward the top of the backplane and provides 1024 bits of nonvolatile read-write memory.

The dial shelf backplane contains the connectors that connect directly with the dial shelf cards and dial shelf controller cards. It also includes a 20-pin molex MiniFit connector that connects to the blower assembly. The dial shelf backplane also includes additional maintenance bus (MBus) connectors to the power-entry modules (PEMs) and filter module, which are used for monitoring environmental conditions. These backplane connectors are shown in Figure 1-7.

Note Figure 1-7shows a rear view of the dial shelf backplane after the PEMs, filter module, and chassis back panel have been removed.

Cisco AS5800 Product Overview 1-13

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Cisco Systems AS5800 manual Dial Shelf Backplane

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.