Pors485
eurovibes·pors485
About the Pors485 PCB
Pors485 is an open source PCB design by eurovibes, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 90 × 60 mm, with 20 components from 10 distinct parts.
Other key parts include the TSR3-2450N. By type, the board carries 9 inductors, 5 capacitors, 4 connectors, 1 IC and 1 resistor.
It belongs with the wearables designs in this gallery.
From the project
Power over RS485
To pass electric power along with data on shared line is a common requirement. The Power over RS485 board provides a solution to fit these needs. The board can both inject and receive power from the bus. It is designed to operate with Voltages from 7V to 36V up to a current of 4A.
pors485 is provided under the terms of the CERN-OHL-S license version 2 as provided in the LICENSES/CERN-OHL-S-2.0 file.

Main components on the Pors485
Pors485 bill of materials (BOM)
20 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TSR3-2450N | Converter_DCDC_TRACO_TSR2-24xxN_TSR2-24xxxN_THT | U101 |
| 1 | PWR | TerminalBlock_WAGO_236-402_1x02_P5.00mm_45Degree | J101 |
| 1 | RS485-IN | TerminalBlock_WAGO_236-402_1x02_P5.00mm_45Degree | J102 |
| 1 | RS485+PWR | TerminalBlock_WAGO_236-402_1x02_P5.00mm_45Degree | J103 |
| 1 | 5V | TerminalBlock_WAGO_236-402_1x02_P5.00mm_45Degree | J104 |
| 8 | 4m7 | L_15x15mm_H8mm | L101, L102, L103, L104, L105, L106, L107, L108 |
| 1 | 4µ7 | L_Changjiang_FXL0530 | L109 |
| 3 | 10µ | C_0805_2012Metric | C101, C102, C105 |
| 2 | 4µ7 | C_1206_3216Metric | C103, C104 |
| 1 | 120 | R_1206_3216Metric | R101 |
Pors485 design files
The KiCad project lives in the eurovibes/pors485 repository on GitHub; these links point at the commit this page was built from.
- Layoutpors485.kicad_pcb
- Schematicpors485.kicad_sch
Pors485: common questions
How big is the Pors485 PCB?
The Pors485 measures 90 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pors485?
20 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Pors485 design files?
From the eurovibes/pors485 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Pors485 design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which eurovibes chose for the repository.
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