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2 layers17.5 × 20.3 mmExtron Audio-3.5mm Adapter, the printed circuit board in 3D

Extron Audio-3.5mm Adapter

jeffqchen/Extron-Audio-3.5mm-Adapter13

Extron Audio 3.5mm Adapter

Size
17.5 × 20.3 mm
Copper layers
2
Thickness
1.6 mm
Parts
6
Nets
5
Pads
26
Tracks, vias
31, 1
Pours
32
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
22 Oct 2021
Updated
23 Aug 2022

Overview

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.

README

README.md

Extron Audio 3.5mm Adapter

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.


Parts

  • PCB

  • 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


3D Printing The 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.


Assembly

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)


Shield: CC BY-SA 4.0

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

CC BY-SA 4.0

Parts

6
QtyValueFootprintReferences
21K_SMDExtron Audio 3.5mm Adapter:Resistor_SMD_0805R1, R2
21K_SMDExtron Audio 3.5mm Adapter:Resistor_Through_HoleT_R1, T_R2
13.5mm_Jack_HorizontalExtron Audio 3.5mm Adapter:3.5mm_jack_horizontalJ1
1terminal_5pinExtron Audio 3.5mm Adapter:terminal_plug_5pinP1

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Questions

How big is the Extron Audio-3.5mm Adapter PCB?

It measures 17.5 × 20.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Extron Audio-3.5mm Adapter use?

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.

Where can I download the Extron Audio-3.5mm Adapter KiCad files?

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.

Can I use the Extron Audio-3.5mm Adapter design in my own project?

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).