Product Overview; History - Mitel SX-2000 EL Information Manual

Product Overview

®
The SX-200 EL and SX-200 ML systems are a microprocessor-controlled telephone system
that handles both voice and data switching. The system hardware is electrically compatible
with most
• Single line telephones
• Mitel Networks™ digital sets
• Key telephone systems
• System telephone systems
• Central office exchanges
• ISDN Networks.

History

The SX-200 system was first developed in 1977 using leading-edge technology from Mitel
Semiconductor Division. MITEL customers worldwide participated in its definition.
The SX-200 system was introduced with a feature-rich package - Generic 202. Building on the
phenomenal success of the SX-200 PBX, MITEL introduced software and hardware
enhancements at the rate of one a year.
Responding to demands for digital technology, in 1985 MITEL introduced the SX-200 DIGITAL
PBX as both a migration path for existing SX-200 users and a communications solution for new
customers. Most features are fully compatible with the first SX-200 system shipped in 1978.
No wonder almost every major telephone company in the world has standardized on the SX-200
family of products!
As an extension of the powerful SX-200, the SX-200 DIGITAL PBX provided a migration path
unmatched by any other manufacturer. This, combined with the fact that it could be competitively
installed for customers requiring between 40 and 400 lines made the system a logical choice
for any small-to-medium-size business.
In 1986, MITEL continued its commitment to meeting customer needs by launching the first
fully digital version of the SX-200 DIGITAL system. This system opened the door to a range of
applications available with digital technology for new users under 250 lines. The system
incorporated custom silicon developed by MITEL, including the DX Chip, (used in the digital
switching matrix), and filter codecs (used to convert analog signals to digital PCM format and
vice versa).
In 1988, the 672-port system was introduced as an expansion for existing 250-line systems,
and for new customers needing up to 500 lines.
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