Vintage Simmons Drums (UK) Users Group

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The ED103-MIDI2SDS is an 8-channel MIDI note to Trigger unit suitable for use with a variety of synthesizer modules and drum machines including the SDS range from
Simmons for which it was originally designed.


The unit has 8, velocity sensitive, trigger outputs each of which can be assigned to aspecific MIDI Note using the `LEARN’ mode.


Features
8 Trigger outputs each being able to swing between 0V (LO) and +10V (HI) in 127 steps as defined by the MIDI Velocity received.
When in TRIGGER mode the duration of the trigger pulse is adjustable from around 1mS
to 130mS as set by an onboard trimmer.
When in GATE mode the trigger is controlled by Note-On and Note-Off commands.
An INVERT mode allows the trigger outputs to swing from HI to LO.
Specifications
Power +12V @ 50mA
-12V @ 10mA
TRIGGER Output Range Velocity controlled from 0V to +10V in 127 steps.
Onboard trimmers allow the LO and HI voltages to be
adjusted to provide finer resolution:-
LO can be adjusted from 0V to ~2V
HI can be adjusted from ~6V to 10V
TRIGGER Output Duration Adjustable from 1mS to 130mS
User Selectable Options
TRIGGER/GATE Mode
INVERT Mode
Determines if output is pulsed or MIDI controlled
Determines if outputs swing LO to HI or HI to LO