A-192, System a - 100, In- / outputs – Doepfer A-192 CV to MIDI Interface User Manual
Page 6

A-192
CVM 16
System A - 100
doepfer
6
5. In- / Outputs
!
!
!
!
CV Inputs 1 ... 16
The 16 sockets ! are the control voltage inputs of
the CV-to-MIDI interface. The control voltages to be
converted into MIDI data are connected to these soc-
kets. The active voltage range for each input is
0...+5V. 0V corresponds to MIDI data 0, +5V to 127.
The conversion is linear (i.e. +2.5V corresponds to
about 63/64 MIDI data).
The module is working reliable as long as the input
voltages are within the limits 5V...+12V but only the
range 0...+5V is converted into MIDI data. Voltages
less than -5V may cause faulty MIDI data. The protec-
tion circuit on each input prevents a damage of the
module as long as the voltages applied to the inputs
are in the range of -12V...+12V. Voltages more than
+12V or less than -12V may damage the module.
Within the A-100 system it is not possible to damage
the module as no voltages beyond these limits are
generated within the A-100 system.
An attenuator/offset module A-129/3 should be used to
convert voltages beyond the range 0...+5V into the
active range 0...+5V.
"
MIDI In
The MIDI In socket " has 3 different functions:
• MIDI data from another MIDI device may be trans-
mitted to the A-192 and merged with the MIDI data
generated by the A-192 (e.g. the MIDI output of a
keyboard).
• The MIDI input is required if an editor program is
used to change presets in the A-192 or to progam
new ones. Please refer to the manual of the editor
program for details. An editor program for PC is
available for free download on our web site
www.doepfer.com
(same as Pocket Control editor).
• An incoming program change message on the
MIDI master channel selects one of the 128 pre-
sets. This selection is only temporarily, i.e. the new
preset is active only until the next power off. During
power on the preset defined by the DIP switch
setting is selected. The selection of a new preset
via program change is indicated by lighting up of
the LED for about one second. During this period
no incoming MIDI data is recognized (i.e. no MIDI
merging, no program change recognition).
If none of these applications is used the MIDI in socket
remains unconnected.