®

Features

Time slot interchange function between eight pairs of ST-BUS/GCI/MVIPstreams (512 channels) and parallel data port

Programmable data rates on the parallel port (19.44, 16.384, or 6.480 Mbyte/s)

Programmable data rates on the serial port (2.048 Mbps, 4.096 Mbps or 8.192 Mbps)

Supports star and point-to-point connections, and unidirectional or bidirectional ring topologies for distributed systems

Input-to-output bypass function on the parallel data port for use in add/drop applications

Provides elastic buffer at parallel input port in the receive direction

Provides byte switching for up to 2430 channels

Per-channel direction control on the serial port side

Per-channel message mode and high-impedance control on both parallel and serial port sides

8-bit multiplexed microprocessor port compatible with Intel and Motorola microcontrollers

Guarantees frame integrity when switching nX64 wideband channels such as ISDN H0 channel

Provides external control lines allowing fast parallel interface to be shared with other devices

MT90840

Distributed Hyperchannel Switch

Preliminary Information

 

ISSUE 2

March 1997

Ordering Information

 

MT90840AL

100 Pin PQFP

 

MT90840AP

84 Pin PLCC

 

-40°C to 85°C

 

 

 

 

Diagnostic alarm functions and clock phase-status word for clock monitoring

IEEE 1149 (JTAG) boundary scan port

Applications

Bridging ST-BUS/MVIP buses to high speed Time Division Multiplexed backplanes at SONET rates (STS-1, STS-3)

High speed isochronous backbones for distributed PBX and LAN systems

Switch platforms of up to 2430 channels with guaranteed frame integrity for wideband channels

Serial bus control and monitoring

Data multiplexing

High speed communications interface

 

 

 

8

 

Multiple Pages of 512 Position

 

8

Serial

Bidirectional

STi0

PDo0

 

 

 

TX Path Data Memory

 

 

 

to

I/O

 

 

 

Output

 

 

 

 

 

 

 

 

 

 

 

 

Parallel

Driver

 

 

 

Mux &

 

 

 

 

 

 

 

 

 

 

 

 

STi7

PDo7

 

Drivers

 

 

 

 

 

16

 

 

 

&

 

 

 

CTo0-3

 

4

 

 

 

 

2430 Position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TX Path

 

 

 

Parallel

 

 

 

 

 

 

 

 

8

Connection Memory

 

 

 

 

 

 

 

 

 

 

 

 

to

 

 

STo0

PDi0

 

 

 

 

 

 

 

 

 

 

 

 

Serial

Bidirectional

 

 

 

8

 

Multiple Pages of 2430-Byte

8

 

 

I/O

 

 

PDi7

 

 

 

 

 

 

Driver

STo7

 

 

 

 

RX Path Data Memory

 

 

 

Conver-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

ters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCKR

 

 

 

 

 

 

512 Position

 

 

 

 

 

 

5

 

 

 

 

 

 

 

RX Path

 

 

 

 

JTAG

PCKT

Timing

 

 

 

 

Connection Memory

 

 

 

TEST

 

 

 

 

 

 

 

 

 

Pins

RES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PPFRi

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PPFTi/o

Unit

 

 

 

 

 

 

 

 

 

 

Internal

 

 

 

F0i/o

 

 

 

CPU Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Registers

 

 

 

 

 

 

 

 

 

 

 

 

8

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPCKo

C4/8R1

C4/8R2

IRQ

AD0-7

DS/RD

R/W\WR

AS/ALE

CS

DTA

 

 

 

VDD

VSS

 

Figure 1 - Functional Block Diagram

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Page 1
Image 1
Mitel MT90840 manual Features, Applications

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.