RJ45 jumper box » History » Version 4
laforge, 02/14/2023 05:59 PM
| 1 | 4 | laforge | {{>toc} |
|---|---|---|---|
| 2 | |||
| 3 | 1 | laforge | h1. RJ45 jumper box |
| 4 | |||
| 5 | This is a small circuit board that allows you to prototype arbitrary RJ45 cables / pin-outs. Once the pin-out is confirmed, you can go ahead and crimp a cable with matching pin-out, having verified that it is correct. |
||
| 6 | |||
| 7 | 4 | laforge | @laforge finds this very useful, particularly in the context of the many different RS232 on RJ45 pin-outs in use by various equipment out there. |
| 8 | 1 | laforge | |
| 9 | 4 | laforge | h2. Hardware v2 |
| 10 | |||
| 11 | In the hardware version _v2_, the PCB design was switched to a two-layer design, and both RJ45 connectors are now located on the top side of the PCB. This significantly increases the usability. |
||
| 12 | |||
| 13 | !{width:50%}rj45-pcba.jpg! |
||
| 14 | |||
| 15 | 3 | laforge | h2. Hardware v1 |
| 16 | 1 | laforge | |
| 17 | This is a single-layer PCB design. In order to make the PCB routing easy, the RJ45 connectors are on opposite sides of the PCB. |
||
| 18 | 3 | laforge | |
| 19 | !{width:50%}rj45_jumper_box-top.jpg! |
||
| 20 | |||
| 21 | 1 | laforge | !{width:50%}rj45_jumper_box-bot.jpg! |
| 22 | |||
| 23 | !{width:50%}rj45_jumper_box-with_cables.jpg! |
||
| 24 | |||
| 25 | 3 | laforge | h2. Design files |
| 26 | |||
| 27 | The PCB design files are available at https://gitea.osmocom.org/electronics/osmo-small-hardware/src/branch/master/rj45-jumper-box |
||
| 28 | 4 | laforge | |
| 29 | h2. Availability |
||
| 30 | |||
| 31 | It's OSHW, so you can build it yourself based on our design files published above. If you prefer a fully assembled product, "sysmocom":https://sysmocom.de/ is offering fully assembled kits in their webshop at https://shop.sysmocom.de/RJ45-Jumper-Box/rj45-rp-kit |
