The TELEXb (TXb) is a 2HP powered bus board for the i2c ecosystem that also enables the connection of external devices using the two 3.5mm stereo jacks at the top and the bottom of the module. These jacks can be used for connection to the 16n FaderBank, TXb that are in disconnected rack rows, or to fiendishly wonderful Frankenstein machines of your own creation.
There are some key things to keep in mind with the TXb (and i2c busses in general):
- Powered bus boards are required when you connect three or more devices to your Teletype via i2c.
- You should only have one bus board connected to power at a time.
- Connections should be kept as short as possible using high-quality cabling (less than 3.5mm).
- There still are practical limits to having a stable i2c bus that are highly dependent on the topology of your deployment. Plan for some trial and error.
Want more help understanding what i2c can and can't do and how to use it in your setup? Check out this awesome User's Guide to i2c that was put together by some awesome people.
- +12V: 1 mA
- -12V: 0 mA
- +5V: 0 mA
- 2HP
- 20.5mm Depth
-
assistive:
TXb Frame
- a 3D printed frame to hold multiple TXb at a timeTXb Stencil Frame
- a 3D printed stencil frame to hold the TXb in place while applying solder pasteTXb Stencil.svg
- the solder paste stencil for laser cutting
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board
gerbers
- the gerbers files (and Eagle files) for the PCBimages
- image rederings of the PCBTELEXb_v1.2.brd/sch
- the master Eagle file for the TXb
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extras
instructions.docx
- the instructions delivered with the pre-built module
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panel
metalphoto
- the individual files used for the creation of the metalphoto panel in the retail versionTXb.ai/svg
- the panel filesTXb_lasercut.svg
- the file used for cutting prototype panels out of acrylicTXb_lg.png
- a big version of the panelTXb_mp.zip
- the archive sent for fabricationTXb_sm.png
- a small photo of the panel
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TXb BOM.csv
- the BOM for this version of the TXb.
Visit the TXb on Modular Grid:
Pre-built TXb are occasionally made availalbe for purchase here: