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Control and Connector Basics, Chapter 2
2-4 ALESIS M20 REFERENCE MANUAL 1.06
2.2G VIDEO IN AND THRU
The BNC connector video input (with 75 ohm termination switch) accepts composite video
as well as black burst video inputs.
2.2H ADAT SYNC IN AND OUT
These 9-pin D connectors synchronize multiple ADATs together to single-sample accuracy.
Computer interface cards with ADAT sync, such as the Alesis ADAT-PCR, allow
transferring ADAT data to and from a computer for editing with single-sample accuracy.
Interface cards without ADAT sync allow transferring ADAT data with 1/4 frame accuracy
via MIDI Time Code.
2.2I MIDI IN AND OUT
These 5-pin DIN connectors can output and/or receive MIDI Machine Control commands,
save and load sysex dumps defining the M20 status, allow for software updates via MIDI
sysex files, and output MTC (MIDI Time Code) when selected.
2.2J RS-422 IN (SONY 9-PIN)
This 9-pin D connector connects to a video editor or other controller that supports the Sony
9-pin protocol. This feature will not be operational until M20 Version 2.0 software becomes
available.
2.2K METER BRIDGE/REMOTE PANEL OUT
This RJ-45 connector connects to an optional remote controller like the Alesis CADI remote,
and/or RMD meter bridge.
2.2L POWER
The IEC-standard, grounded AC input plug accepts AC voltages from 90 to 250 volts,
eliminating the need for transformers or voltage switches.