3
to ensure that you don’t damage your Teensy, module, computer,
or fabric of the universe.
Getting Started: Connections
Connecting Your TELEX to Eurorack Power
The TELEX modules follow the “red stripe down” paradigm of
power connections. This means that the -12 side of your Eurorack
cable should be at the bottom of the module. This is marked on
the silkscreen as “< -12” alongside the vertical Eurorack power
connector.
While the TELEX was designed with reverse power protection,
this hasn’t been fully tested out of concern for the safety of rare
prototypes, Teletype modules, power supplies, and small animals.
It is highly recommended that you ensure that your power
connections are oriented properly and fully connected. (If you do
screw this up, let us all know what happens. In the meantime, we’ll
be looking for the swirling vortex in the sky.)
After connecting things to your TELEX, ensure that the 3 layers
of the module are properly seated. The two boards and Teensy
should be flat and snug. You will damage your unit if it is not
properly put together when powered up. That would suck.
Connecting the TELEX to Your Teletype via II
The II bus consists of two signals (SCL and SDA) and a ground wire.
Your Teletype shipped with a cable affixed with 2x3 connectors
and a six-conductor ribbon cable. This works fine – but can be a
bit of a pain in the rear to wrangle when you have a bunch of
modules connected to the bus.
We have included a three-conductor jumper wire with your
module to facilitate their connection to the II bus. You can use
either method – but there are important considerations you need
to keep in mind:
-
On the Teletype and Trilogy Modules, the II pins are oriented
top to bottom (ground on the top).
-
On the TELEX modules and Ansible, these pins are oriented
bottom to top (ground on the bottom).
-
On the TELEX modules, two vertical columns of II pins are
present and slightly separated (2x3 connectors won’t cover
both columns – they are designed for jumpers).
Ensure that you are appropriately orienting your ground wire
when connecting the devices together. The rule is “Twist to the
Teletype or Trilogy” - if you need a mnemonic.
The diagrams below illustrate where the pins are located on the
two modules.