Preliminary Information

MT90840

Applications

Distributed Isochronous Network

Low latency isochronous backbones provide for the deployment of systems that require cost effective implementation, high bandwidth, predictable data transfer delays and direct synchronization with the wide area network.

Some applications in Computer Telephony Integration (CTI) require a large amount of bandwidth to be transported between multiple chassis within the same location, or between separate locations. The MT90840 is ideal for implementing physically distributed transport and switching systems for multi-chassis or inter-shelf communications.

The MT90840 bridges existing Mitel ST-BUS components into a new networking environment where mixed data, voice and video signals can be time-interchanged or multiplexed from serial PCM streams onto serial high-speed time-division- multiplex (TDM) isochronous backbones operating at

SONET rates such as 51 (STS-1) or 155 Mbps (STS-3).

Today, transmission links operating at SONET rates utilize serial-to-parallel and parallel-to-serial converters (or framers) which perform embedded framing functions and give the user access to the payload of the high speed frame. The MT90840 provides an 8-bit bidirectional parallel data port which directly interfaces to a high-speed framer parallel data interface, allowing designers to build distributed networking systems with interconnection speeds up to 155 Mbps. Figure 16 shows an example of a distributed networking application in a CTI system.

The MT90840's clock synchronization and reference options allow many applications and topologies when isochronous TDM backbones are required. Two major clock synchronization schemes provided by the MT90840 allow the serial port interface (ST-BUS) to provide the master clock and frame reference signals for the distributed high speed backbone (master operation) or to derive the entire ST-BUS clock and frame reference signals from the high speed backbone (slave operation). This type of

CTI Server

 

 

 

24/30B+D

 

 

 

 

 

 

ST-BUSMT8977/9079

PSTN

 

 

 

Switching

MT90810

 

T1 & E1 I/F

 

FMIC

 

 

CTI

BUS

 

Call

 

 

e.g.; MVIP

 

 

Processing

SERVER

 

 

 

 

 

 

155 Mbps

 

 

MT90840

 

Framing &

 

 

 

Optics

Up to 2400 TDM

 

 

 

 

 

 

 

channels of user data

 

ST-BUS

MT896x

 

 

Filter/Codec

 

 

MT90810

 

 

 

FMIC

 

Filter/Codec

 

 

 

 

 

 

ST-BUS

MT8930 / 71

 

 

MT8985/6

 

(2B+D) I/F

 

 

EDX

ISO Ethernet

 

 

 

CTI

 

 

 

MUX

 

 

 

 

SERVER

 

LAN ADAPTER CARD

 

 

Interchassis Signalling

 

 

 

 

(e.g. Mitel’s Connection

 

 

 

 

Master Software)

Figure 16 - CTI Distributed Architecture Implemented with the MT90840

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Image 31
Mitel manual Distributed Isochronous Network, CTI Distributed Architecture Implemented with the MT90840

MT90840 specifications

The Mitel MT90840 is an advanced telecommunications device designed to enhance connectivity and communication capabilities for various applications. With its robust array of features and technologies, the MT90840 is well-suited for businesses looking to improve their communications infrastructure.

One of the standout features of the Mitel MT90840 is its integration of voice and data services. This allows users to manage their communications more efficiently, streamlining operations and reducing costs. The device supports a wide range of voice codecs, ensuring high-quality audio during calls and providing flexibility for users who may require different standards for different applications.

Another key characteristic of the MT90840 is its scalability. The device is designed to grow with the needs of a business. It supports multiple lines and can be configured to handle an increasing number of users without compromising performance. This scalability is particularly advantageous for organizations that may undergo growth or changes in their communication needs over time.

The Mitel MT90840 also incorporates advanced networking technologies, such as VoIP (Voice over Internet Protocol). This allows users to make voice calls using the internet rather than traditional phone lines, reducing costs for long-distance calls and improving overall communication efficiency. The device is equipped with features that support secure, encrypted communication, further protecting sensitive data and conversations from potential breaches.

Additionally, the MT90840 is designed with user-friendliness in mind. It features an intuitive interface that simplifies operation, making it accessible even for those who may not be tech-savvy. The device is compatible with various peripherals, such as headsets and conferencing equipment, further enhancing its usability in diverse settings, from small offices to large conference rooms.

Moreover, the Mitel MT90840 offers excellent interoperability with a variety of third-party applications. This flexibility enables organizations to integrate the device into their existing systems seamlessly, thereby enhancing productivity without requiring a complete technological overhaul.

In conclusion, the Mitel MT90840 stands out as a versatile and reliable telecommunications solution. Its rich feature set, including voice and data integration, scalability, VoIP capabilities, user-friendly interface, and interoperability, makes it an ideal choice for businesses looking to elevate their communications strategy.