Grayscale SYNAPSE User Manual
SYNAPSE
Version 1.0 (2015-05-17)
http://grayscale.info
Synapse is a CV interface module for the Elektron Analog Four and Analog Keys.
The module simplifies integration of these devices into a Eurorack modular synth
context by eliminating the need for insert cables and adapters while also providing
visual feedback about what’s happening on each of the four CV channels.
Technical Details
In the box:
- Synapse module
- Power cable (10-to-16 pin)
Dimensions:
- Width: 6hp (1.2” or 30.5mm)
- Height: 3U (5.06” or 128.5mm)
- Depth: 30mm (with power cable installed)
Power Requirements:
- Maximum of 30mA at +12V
- Protected against reverse polarity
Module Installation
To install the module in your Eurorack system, first ensure that power to the system is
turned off. Please take precautions against ESD (electrostatic discharge) to prevent
permanent damage to the module’s components. Connect the smaller 10-pin socket
of the power cable to the module, aligning the red stripe on the power cable with the
“-12V” label on the PCB. Connect the larger 16-pin socket on the power cable to your
power distribution board. Take note of the power cable’s orientation with regard to
the -12V supply of your power distribution board. The red stripe usually (but not
always) aligns with the bottom of the connector on the distribution board. Synapse is
protected against reverse polarity (which occurs when a power cable is connected
upside down) but other modules in your system may not be.
Getting Started
Version 1.0 (2015-05-17)
http://grayscale.info
Using 1/4” TRS cables, connect the CV outputs of your Analog Four or Analog Keys to
the two Synapse inputs (labeled CV:AB and CV:CD). The four CV channels will be
available at the 3.5mm output jacks below. Each output has an associated bicolor LED
to indicate the polarity and relative intensity of outgoing CV signals. Green represents
positive voltage, red represents negative voltage.
The fully analog circuit design of Synapse ensures that CV signals from the A4/AK will
pass through unaffected. The full +/- 10V output range can be used without limitation.
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