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product:usb2ax:specs [2013/11/16 00:49] xevel [USB2AX: Technical Specifications] |
product:usb2ax:specs [2017/07/27 08:04] xevel |
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===== USB2AX: Technical Specifications ===== | ===== USB2AX: Technical Specifications ===== | ||
- | The hardware of the USB2AX is relatively simple: only 17 components and a 16x20mm PCB. | + | //This page is currently referring to v3.1a, and will be updated with infos for v3.2a at some point, maybe. Refer to the source files if you need to be sure.// |
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+ | The hardware of the USB2AX is relatively simple: only 17 components and a 15x20mm PCB. | ||
{{product:usb2ax:USB2AXv31_front_euro_s.jpg}} | {{product:usb2ax:USB2AXv31_front_euro_s.jpg}} | ||
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{{product:usb2ax:usb2ax_v3.1_schematics.png}}\\ | {{product:usb2ax:usb2ax_v3.1_schematics.png}}\\ | ||
- | [[https://paranoidstudio.assembla.com/code/paranoidstudio/git/nodes/master/usb2ax/elec|All Eagle files]] | + | [[https://github.com/Xevel/usb2ax/tree/master|All Eagle files]] |
The protection circuitry for DATA, with the zener diode and PTC resistor, comes from the [[http://ruggedcircuits.com/html/ruggeduino.html|Ruggeduino]], and makes it possible to withstand applying 12V to DATA indefinitely. More detailed explanation of how it works [[http://forums.trossenrobotics.com/showthread.php?5675-USB2AX-v3.1&p=53101#post53101|here]]. This situation can easily happen in real life with a shoddy custom or damaged cable, and improper protection could result in a fried motherboard... | The protection circuitry for DATA, with the zener diode and PTC resistor, comes from the [[http://ruggedcircuits.com/html/ruggeduino.html|Ruggeduino]], and makes it possible to withstand applying 12V to DATA indefinitely. More detailed explanation of how it works [[http://forums.trossenrobotics.com/showthread.php?5675-USB2AX-v3.1&p=53101#post53101|here]]. This situation can easily happen in real life with a shoddy custom or damaged cable, and improper protection could result in a fried motherboard... | ||
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| 12 | D1 | 1 | Zener diode for DATA overvoltage protection | 5.1V | SOD-923 | | | 12 | D1 | 1 | Zener diode for DATA overvoltage protection | 5.1V | SOD-923 | | ||
| 13 | LED1 | 1 | Double LED | Green/Red | C0603 | | | 13 | LED1 | 1 | Double LED | Green/Red | C0603 | | ||
- | | 14 | U2 | 1 | ESD protection | | XSON6 | | + | | 14 | U2 | 1 | ESD protection | IP4282CZ6,115 | XSON6 | |
| 15 | | 1 | Heat-shrink tubing (diam:12,7mm)(length:24mm+/-1mm)(TRANSPARENT) | | | | | 15 | | 1 | Heat-shrink tubing (diam:12,7mm)(length:24mm+/-1mm)(TRANSPARENT) | | | | ||
==== Mechanical ==== | ==== Mechanical ==== | ||
- | Size: 16mm x 36mm x ~7mm (without heat-shrink tubing) | + | Size: 15mm x 36mm x ~7mm (without heat-shrink tubing) |
[[http://www.xevel.fr/other/usb2ax_v3.1.stl|3D CAD file (stl)]] | [[http://www.xevel.fr/other/usb2ax_v3.1.stl|3D CAD file (stl)]] | ||