Preparing v.02 (SMD)

A project log for ╬╝Diff: Long distance digital signals over RJ45

A simple 50mmx44mm module to route power and differential signals (RS-485) over RJ-45

Alexander WilliamsAlexander Williams 04/14/2021 at 01:021 Comment

I already started designing the v.02 board. I'm aiming for 50mm x 50mm to take advantage of cheaper board costs.

So far I've made the following improvements for the SMD board:

Here are the components which will be part of the through-hole kit (excluding the PCB):

The kits will have 4 variants:

  1. Through-hole PCB only: you source the components yourself
  2. Through-hole full kit: PCB and all required components (pictured above)
  3. SMD PCB only: you source the non-SMD components yourself, the rest are pre-soldered
  4. SMD PCB + mounted components kit: has all required components, you solder the 5V regulator and 120ohm resistor

In all cases, there will be some soldering required, with option 1 requiring the most amount of work on your end, down to option 4 requiring the least.

Other changes

I'm not too happy with the v.01 board, so I will likely scrap it and order new v.02 boards in through-hole version as well.


Alexander Williams wrote 04/14/2021 at 23:43 point

There's also a 2-pin green screw terminal (max ~8A?) included with the kit (not pictured).

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