
Switch
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.

Extron Audio 3.5mm Adapter
Extron Audio-3.5mm Adapter is an open-source printed circuit board by jeffqchen, from the jeffqchen/Extron-Audio-3.5mm-Adapter repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 17.5 × 20.3 mm with 6 parts on 5 nets, routed with 31 tracks and 1 via.
Its parts include 2 resistors and 2 connectors. It belongs with the audio and music and interfaces and adapters boards of this library.
This is an 3.5mm audio input/output adapter for the Extron switches. It conforms to the circuit design of the official CSM6 adapter to enable correct audio levels when balanced audio is adapted to unbalanced audio through a 3.5mm jack.
Terminal Plug - 5 pin, 3.5mm pitch, right angle, through-hole - Link
Horizontal 3.5mm Headphone Jack - Link
M2x12mm screw and hex nut - Link
2x Resistors 1K Ohm - SMD 0805/0603 OR through-hole 1/4W
3D Printed Shell
Print "Shell.stl" and "Stopper.stl".*
Print the shell sideways, without support.
Print the stopper standing, with the screw hole vertical.
*Note: for Extron devices with an audio port that's flush with the shell (such as the RGB series), please use the shell called "Shell Flush.stl". The normal one does not seat properly and the connection will be loose.
Solder all the components onto the PCB. Trim the extruding leads on the bottom as much as possible, but perfection is not required.
Slide the PCB assembly into the 3D printed shell from the rear opening. Push it all the way in. Then slide the printed stopper piece into the center cavity. Then secure the entire assembly with the M2 screw and nut. DO NOT over-tighten the screw, or the shell might crack.
If you plan to use the adapters side-by-side on a CrossPoint switch, take a side cutter and cut off the two side walls of the terminal plug. This will ensure two adjacent plugs won't interfere with each other.
Special Thanks
qwertymodo (for the schematics of the original adapter)
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1K_SMD | Extron Audio 3.5mm Adapter:Resistor_SMD_0805 | R1, R2 |
| 2 | 1K_SMD | Extron Audio 3.5mm Adapter:Resistor_Through_Hole | T_R1, T_R2 |
| 1 | 3.5mm_Jack_Horizontal | Extron Audio 3.5mm Adapter:3.5mm_jack_horizontal | J1 |
| 1 | terminal_5pin | Extron Audio 3.5mm Adapter:terminal_plug_5pin | P1 |

byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.


Jcparkyn/dpoint
Open-source digital stylus using camera tracking and inertial measurements

VoronDesign/Voron-Hardware
Cool Hardware designed by the Voron Design group

hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!

Luos-io/luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.

It measures 17.5 × 20.3 mm and has 2 copper layers, 1.6 mm thick.
6 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the jeffqchen/Extron-Audio-3.5mm-Adapter repository on GitHub, at the commit this page was made from: the board is KiCAD/Extron Audio 3.5mm Adapter/Extron Audio 3.5mm Adapter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).