US2500 / US2000B with a 4-pin RJ11 Console port: adapter cable wiring

Kort antwoord

Older Pylontech batteries (US2000B, US2000 Plus, US2500) have a small 4-pin RJ11/RJ10 Console socket instead of RJ45. They work with an RJ11-to-RJ45 adapter cable you can make yourself: RJ11 pin 2 → RJ45 pin 6, pin 3 → pin 3, pin 4 → pin 8.

Klant H. 🇩🇪 Duitsland Vraag 13 oktober 2026

🇬🇧 Engels · Engelse vertaling door ons team

The 2500 battery has a different connector: the Console port is a 4-pin plug. How can I connect the Pylon-Monitor?

Origineel · Deutsch

Die 2500er Batterie hat einen anderen Anschluss: Der Console-Anschluss ist ein 4-Pin-Stecker. Wie kann ich den Pylon-Monitor anschließen?

Pylon-Monitor-teamOfficieel antwoord 19 oktober 2026

🇬🇧 Engels

Like the US2000B, the US2500 has an RJ11 Console port (4-pin) instead of RJ45, so the supplied cable doesn't fit. You need an RJ11-to-RJ45 adapter cable wired as follows:

- RJ11 pin 2 → RJ45 pin 6

- RJ11 pin 3 → RJ45 pin 3

- RJ11 pin 4 → RJ45 pin 8

The RJ45 end goes into the Pylon-Monitor, the RJ11 end into the Console port of the master battery.

Origineel · Deutsch

Wie die US2000B hat die US2500 einen RJ11-Console-Anschluss (4-polig) statt RJ45. Das mitgelieferte Kabel passt daher nicht; Sie benötigen ein Adapterkabel RJ11 → RJ45 mit folgender Belegung:

- RJ11 Pin 2 → RJ45 Pin 6

- RJ11 Pin 3 → RJ45 Pin 3

- RJ11 Pin 4 → RJ45 Pin 8

Die RJ45-Seite kommt in den Pylon-Monitor, die RJ11-Seite in den Console-Port der Master-Batterie.

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#US2500#US2000B#RJ11#RJ10#adapter cable#Console port

←Can it update battery firmware, extract logs, send console commands or change settings — like BatteryView, remotely? →I see every cell of my 5 batteries, but no cycles, health or capacity for the slaves. Why?

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My US2500 has a different Console connector (4-pin). How do I connect the Pylon-Monitor?

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