MT90866 データシートの表示（PDF） - Mitel Networks

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MT90866

WAN Access Switch

Mitel Networks 

Features

• 3.3V operation with 5V tolerant inputs and I/O’s

• 2,432 x 2,432 channel non-blocking switching

among local streams

• 4,096 x 2,432 channel blocking switching

between backplane and local streams

• 2,048 x 2,048 channel non-blocking switching

among backplane streams

• Rate conversion between backplane and local

streams

• Rate conversion among local streams

• Backplane interface accepts data rates of

8.192Mb/s or 16.384Mb/s

• Local interface accepts data rates of 2.048Mb/

s, 4.096Mb/s or 8.192Mb/s

• Sub-rate switching (2 or 4 bits) configuration for

local streams at a data rate of 2.048Mb/s

• Per-channel variable or constant throughput

delay

• Fully compliant to H.110 Timing specifications

• Automatic frame offset delay measurement for

backplane streams

• Per-stream input frame delay offset, up to 128

bytes, programmable for local streams on a per

quarter bit or per channel basis

• Per-stream output frame advancement,

programmable for backplane and local streams

• Per-channel direction control for backplane

streams

• Per-channel message mode for backplane and

local streams

• Per-channel high impedance output control for

backplane and local streams

• Pseudo-Random Binary Sequence (PRBS)

pattern generation and testing for backplane

and local streams

• 5V tolerant PCI driver on CT-Bus I/O’s

• Integrated PLL, compatible to Stratum 4

Enhanced clock switching standard

• Non-multiplexed microprocessor interface

• Connection memory block programming for fast

device initialization

• Tristate-control outputs for external drivers

• Conform to the mandatory requirements of the

IEEE-1149.1 (JTAG) standard

MT90866

WAN Access Switch

Product Brief

DS5279

ISSUE 2

Feburary 2000

Ordering Information

MT90866AL

MT90866AG

256 Pin LQFP

240 Pin LBGA

-40°C to +85°C

Applications

• Multi-service access platforms

• CTI applications

• Gateways, Integrated Access Devices

• ST-BUS and H.110 interface applications

Description

The MT90866 Digital Switch provides switching

capacities of 4,096 x 2,432 channels between

backplane and local streams, 2,432 x 2,432

channels among local streams and 2,048 x 2,048

channels among backplane streams. The local

connected serial inputs and outputs have 32, 64 and

128 64kb/s channels per frame with data rates of

2.048, 4.096 and 8.192Mb/s respectively. The

backplane connected serial inputs and outputs have

128 and 256 64kb/s channels per frame with data

rates of 8.192 and 16.384Mb/s respectively.

The MT90866 also offers a sub-rate switching

configuration which allows 2-bit wide 16kb/s or 4-bit

wide 32kb/s data channels to be switched within the

device.

The device has features that are programmable on

per-stream or per-channel basis including message

mode, input delay offset, output advancement offset,

direction control and high impedance output control.

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