Appendix B Specifications

MATM Specification

Note All service specific alarms, except red, are passed through transparently.

Loss of signal (red) at CBR interface results in all 1’s cells being transmitted.

Brief periods of cell loss “Starvation” results in insertion of 47 octects of 1’s.

Extended periods of cell loss results in all 1’s (unframed AIS) being generated.

During periods of cell bus configuration SAR-PDUs are discarded.

MATM Specification

Physical Interface (T3.T1) RJ48-T3T1-LM

 

•

T1

Line Interface Connector:

Miniature RJ-48C, 100 ohms balanced

•

T3

Line Interface Connector:

BNC, 75 ohms unbalanced

Physical Interface (E3.E1) RJ48-E3E1-LM:

 

•

E1

Line Interface Connector:

Miniature RJ-48C, 100 ohms balanced

•

E3

Line Interface connector:

BNC, 75 ohms unbalanced

Physical Interface (E3.E1B)

 

SMB-E3E1-LM:

 

•

E1

Line Interface Connector:

Miniature SMB, 75 ohms unbalanced

•

E3

Line Interface Connector:

Miniature SMB, 75 ohms unbalanced

Physical Layer Interface T1:

Line Rate:

1.544 Mbps ± 50 bps

IMATM Synchronization:

Digital PLL to synchronize all transmitters to one of the

 

following: the T3 line, any of the T1 lines, or the MGX 8220

 

shelf 8 kHz clock

Line Code:

Bipolar 8 zero substitution (B8ZS) as specified in ANSI

 

T1.408

Line Framing:

Extended Superframe Format (ESF 24 frame multiframe) as

 

in ANSI T1.408

 

Cisco MGX 8220 Installation and Configuration

B-32

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

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Cisco Systems MGX 8220 manual Matm Specification, Physical Layer Interface T1, SMB-E3E1-LM
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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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