Power over Single Pair Ethernet with BE-IIS-HPP-T1S and PoSPE over 100 m YV Cable

10BASE-T1S enables Ethernet communication over a single twisted pair and is well suited for compact embedded and industrial evaluation setups.

In this practical test, the BE-IIS-HPP-T1S is combined with the BE-IIS-HPP-PoSPE companion board to demonstrate data communication and power delivery over the same single-pair cable.

Test Setup

The setup shown in the video uses:

2 × Raspberry Pi 5
2 × BE-IIS-HPP-T1S HATs
2 × BE-IIS-HPP-PoSPE companion boards
1 × 100 m YV cable

Each Raspberry Pi 5 is equipped with one BE-IIS-HPP-T1S and one BE-IIS-HPP-PoSPE board.

Raspberry Pi 5
+ BE-IIS-HPP-T1S
+ BE-IIS-HPP-PoSPE
        |
        | 100 m YV cable
        | data + power over single pair
        |
Raspberry Pi 5
+ BE-IIS-HPP-T1S
+ BE-IIS-HPP-PoSPE

The first Raspberry Pi is supplied from an external power supply.

The second Raspberry Pi is powered over the data line through the 100 m single-pair cable.

During the test, an active Ethernet data connection is running at the same time.

Power over Single Pair Ethernet

The BE-IIS-HPP-PoSPE board is designed as a companion board for the BE-IIS Single Pair Ethernet HATs.

It can be used together with:

BE-IIS-HPP-T1S
BE-IIS-HPP-T1L

In the shown setup, the PoSPE board is used together with the BE-IIS-HPP-T1S.

The power path supports up to:

33 V
1 A

This allows a remote Raspberry Pi system to be supplied over the same cable that is also used for Ethernet communication.

Result

The video demonstrates a working 10BASE-T1S data link over a 100 m YV cable while the remote Raspberry Pi is powered over the same single-pair connection.

The measured throughput is around:

9.5 Mbit/s

This shows that the BE-IIS-HPP-T1S and BE-IIS-HPP-PoSPE combination can be used for practical Raspberry Pi based Single Pair Ethernet evaluation setups with data and power over one cable.

Conclusion

This test demonstrates a compact Power over Single Pair Ethernet setup using two Raspberry Pi 5 systems.

The BE-IIS-HPP-T1S provides the 10BASE-T1S data connection, while the BE-IIS-HPP-PoSPE companion board enables power delivery over the same single-pair cable.

The test does not replace formal compliance testing with specified cabling.

However, it shows that the BE-IIS HAT++ ecosystem can be used for practical evaluation, prototyping, and demonstration of Single Pair Ethernet systems with combined data and power transmission.

Links and References

BE-IIS-HPP-T1S product page:
https://www.be-iis.eu/products/BE-IIS-HPP-T1S_B/

BE-IIS-HPP-PoSPE product page:
https://www.be-iis.eu/products/BE-IIS-HPP-PoSPE_B/

BE-IIS-HPP-T1L product page:
https://www.be-iis.eu/products/BE-IIS-HPP-T1L_B/

DigiKey BE-IIS-HPP-T1S:
https://www.digikey.de/en/products/detail/brechel-electronic-industrial-interface-systems-be-iis/BE-IIS-HPP-T1S/29436902

DigiKey BE-IIS-HPP-PoSPE:
https://www.digikey.de/en/products/detail/brechel-electronic-industrial-interface-systems-be-iis/BE-IIS-HPP-PoSE/29436904

DigiKey BE-IIS-HPP-T1L:
https://www.digikey.de/en/products/detail/brechel-electronic-industrial-interface-systems-be-iis/BE-IIS-HPP-T1L/29436903