Chapter

Cisco MGX 8220 System Overview

•ATM UNI service module for T1, Version B (MGX-AUSM-8T1/B)

This card provides interfaces for up to eight T1 lines, each of which can support one T1 ATM UNI or ATM NNI plus additional support for standards-based IMA. Version B adds the capability to extract clocking information from the T1/E1/IMA trunk to feed into the Cisco MGX 8800 system clock. This supports ATM forum-compliant IMA (1.0 spec).

•ATM UNI service module for E1, Version B (MGX-AUSM-8E1/B)

This card provides interfaces for up to eight E1 lines, each of which can support one E1 ATM UNI or ATM NNI plus additional support for standards-based IMA. Version B adds the capability to extract clocking information from the T1/E1/IMA trunk to feed into the Cisco MGX 8800 system clock. This supports ATM forum-compliant IMA (1.0 spec).

Inverse Multiplexing for ATM Trunk Modules

•Inverse multiplexing for ATM trunk module—T3 to T1 (AX-IMATM-8T1/B)

This card acts as an extension of the Cisco BPX BNI card and permits the Cisco BPX ATM trunk to be used over multiple (up to 8) T1 lines instead of a single T3 line.

•Inverse multiplexing for ATM trunk module—E3 to E1 (AX-IMATM-8E1/B)

This card acts as an extension of the Cisco BPX BNI card and permits the Cisco BPX ATM trunk to be used over multiple (up to 8) E1 lines instead of a single E3 line.

Circuit Emulation Service Modules

•Circuit emulation service module for T1 (AX-CESM-4T1)

This card provides interfaces for up to four T1 lines, each of which is a 1.544 Mbps unstructured synchronous data stream.

•Circuit emulation service module for E1 (AX-CESM-4E1)

This card provides interfaces for up to four E1 lines, each of which is a 2.048 Mbps unstructured synchronous data stream.

•Circuit emulation service module for T1 (AX-CESM-8T1)

This card provides interfaces for up to eight T1 lines, each of which is a 1.544 Mbps structured or unstructured synchronous data stream.

•Circuit emulation service module for E1 (AX-CESM-8E1)

This card provides interfaces for up to eight E1 lines, each of which is a 2.048 Mbps structured or unstructured synchronous data stream.

Service Resource Modules

•Service resource module (AX-SRM-T1E1/B)

The optional SRM-T1E1/B provides three major functions for service modules; bit error rate tester (BERT) of T1 and E1 lines and ports, loops back of individual nx64 channels toward the customer premises equipment (CPE), and 1:N redundancy for the service modules.

•Service resource module (MGX-SRM-3T3)

The SRM-3T3 provides three major functions for service modules; bit error rate tester (BERT) of T1 and E1 lines and ports, loops back of individual nx64 channels toward the CPE, and 1:N redundancy for the service modules. The SRM-3T3 provides the additional capability of supporting multiple T1 channels over T3 lines on the SRM and distributing those channels to T1 service modules in the shelf.

 

Cisco MGX 8220 Installation and Configuration

1-8

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

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Cisco Systems MGX 8220 manual Inverse Multiplexing for ATM Trunk Modules, Circuit Emulation Service Modules
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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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