Doepfer A-151 Quad Sequential Switch - Manual (Page 3)

doepfer System A - 100 Quad Sequential Switch A-151
3
3. Indicators
1 LED • 2 LED • 3 LED • 4 LED
LEDs 1 to 4 are the status indicators, showing
which of sockets $ to / is connected to the common
out /input § at any moment.
5 Steps
This switch is used to limit the number of addressed
in/outputs to 2, 3 or 4. The switch is available on in
version 2 of the module (about since 2005).
4. In / Outputs
! Trig. In
Socket ! is the A-151’s trigger input. With each new
pulse (at the rising edge), the common out / input is
switched to the next in / output.
After stepping to the fourth in / output the next trigger
pulse sends the common out / input back to the first in
/ output again (see Fig. 1).
H Don’t forget that with a very fast repeating
trigger, the switching process on the A-151
can produce audio-frequency modulation
(see chapter 5, user examples).
" Res. In
If you want to over-ride the stepping sequence, and
send the common out /input back to the first in / output,
send a reset pulse to the reset input " (see Fig. 1).
The rising edge of this pulse immediately resets the
common out / input to the first in / output.
Using the reset input, you can create repeated se-
quences which switch between three inputs or outputs
($ Ц % Ц & Ц $ Ц % Ц & Ö $...).
§ O/I
Socket $ is the common out /input. Each time the
A-100 is switched on, or a reset pulse is received, this
socket is connected to the first in / output socket $
(see Fig. 1).
$ I/O 1 • % I/O 2 • & I/O 3 • / I/O 4
Sockets $ to / are the in / outputs.