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MEB90812 Datasheet, PDF (2/4 Pages) Mitel Networks Corporation – Evaluation Kit Preliminary Information | |||
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MEB90812
Preliminary Information
Hardware
Software
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 ofï¬ce 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 peripherals
such as analog sets, digital sets, central ofï¬ce, 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.
Operation of the evaluation board is performed via a
graphically intuitive user interface (windows console)
with the following features:
⢠Register view and modiï¬cation 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 speciï¬c
time interval
⢠Various windows to examine and view the IDXâs
telephony functions. The related windows are
as follows:
⢠Connections
⢠Conferences
⢠Timing
⢠Tone Generation
⢠DBRT Receive
⢠DBRT Transmit
⢠Energy Detect
⢠FSK Transmitter and Ringer
⢠Pre-deï¬ned Tests
⢠Macro editor
⢠POTS and Central Ofï¬ce
Primitive level conï¬guration allows access to the
various board device registers. Functional level
conï¬guration 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-deï¬ned Tests windows
provide test conï¬gurations 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
⢠Userâs 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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