MITEL MEB90812A, MEB90812A-P Datasheet

MEB90812

Evaluation Kit

Preliminary Information

Features

• Allows Mitel customers to evaluate the
MT90812 device

• Demonstrates the advantages of Mitel Telecom
solution

• Shows the power of the MEB90812 on a single
board solution

• Eases bench-top prototyping to reduce
development risk

• Provides a highly functional graphical user
interface (GUI) in Windows 95

Central
Office

MH88632

Loop
Back

COIC

MT8870D

DTMF Rx

EST0,STo0-1

IDX

EST1,STi0-1

ISSUE 1 September 1999

Ordering Information

MEB90812A-P with Power Supply
MEB90812A without Power Supply

Introduction

This document describes a kit containing an
evaluation board, a software and a user’s manual to
be provided to Mitel MT90812 customers.

The package containing the evaluation board,
windows-based GUI and user’s manual is referred to
as the MEB90812 Evaluation Kit, from now on in this
document.

Local ST-BUS

MT9161

CODEC

MT9161
CODEC

MT9171

STi/o0-1

DNIC

MT9161

CODEC

X4

Digital Sets

FPGAs

To & From

IDX, COIC, CODECs,

HDLC, DNICs, COIC,

SLICs, DTMF RXs,
and Loop Back

Micro Processor

& Memory

RS-422 Port

To Other IDX Cards

(For System Expansion)

Figure 1 - MEB90812 Functional Block Diagram

HDLC

MT8952

PC Interface

RS-232 Port

MT8870D

EST0-1

& Clocks

DTMF RX

SLIC

MH88625

STi/o0-1

H-MVIP

Interface

(For System Expansion)

X2

Analog Sets

H-MVIP

BUS

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MEB90812 Preliminary Information

Hardware

Figure 1 depicts the functional block diagram of the
MEB90812 evaluation board. The hardware is a
single board computer with the embedded software
and the following hardware features:

• One central office trunk interface (COIC)

• Two analog line interfaces (SLIC) for analog
telephone sets (POTS)

• Four digital line interfaces (DNIC) for digital
sets

• One HDLC protocol controller

• Three DTMF receivers

• One RS-232 port, a 68302 processor, and
memory for communications between a
personal computer and on board devices

• One RS-422 port and an H-MVIP header

The MEB90812 evaluation board can be partitioned
into three sections: IDX, peripherals, and the
microprocessor and its peripherals. The evaluation
board provides a platform for the user to examine
and exercise the features of the IDX with per ipherals
such as analog sets, digital sets, central office, and
an HDLC controller. The IDX provides the digital
cross point switching between the peripherals on the
local ST-BUS streams with a data rate at 2.048 Mb/s.
The IDX also provides the integration of several
telephony functions that are required in a digital key
telephone system.

The microprocessor on the board performs the tasks
of communications between a personal computer
and the on-board devices. System expansion with
additional MEB90812 boards is easily achieved by
cascading up to four boards via the H-MVIP header.
With an expanded system, data and voice channels
can be transferred from one evaluation board to
another over the H-MVIP bus at a rate of 2.048,

4.096, or 8.192 Mb/s with the switching capability of

the IDX on each evaluation board. A single personal
computer can be used to control the devices on all
four boards.

Software

Operation of the evaluation board is perfor med via a
graphically intuitive user interface (windows console)
with the following features:

• Register view and modification window

• Monitor window to examine the content of any
registers and memory locations of the IDX as
well as other devices on the board at a specific
time interval

• V arious windows to examine and view the IDX’s
telephony functions. The related windows are
as follows:

• Connections

• Conferences

• Timing

• Tone Generation

• DBRT Receive

• DBRT Transmit

• Energy Detect

• FSK Transmitter and Ringer

• Pre-defined Tests

• Macro editor

• POTS and Central Office

Primitive level configuration allows access to the
various board device registers. Functional level
configuration allows the setting up of connections
and combines primitive-level register settings to
demonstrate a function. The console also facilitates
such housekeeping chores as communications setup
and macro editing. The Pre-defined Tests windows
provide test configurations to exercise the
functionality of the IDX and other devices on the
evaluation board.

MEB90812 Evaluation Kit Contents

The MEB90812 kit consists of the following items:

• MEB90812 evaluation board

• Windows console software

• User’s manual

• Power supply (optional)

Warranty Terms

As per Section 6.0, Warranty and Limitation of
Liability, in Terms and Conditions of Sales.

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