J1939 250-500 Converter — Instantly

The INPRONIC J1939 250–500 Converter automatically translates communication between both speeds — without modifying PGNs, SPNs, or timing structure. Bidirectional Converter

The Real Problem: J1939 Speed Mismatch

Many J1939 integration issues come down to one problem: the engine ECU may broadcast at 250 kbps while the cab, dashboard, or other modules run at 500 kbps (or vice versa). When the baud rates don’t match, the networks can’t understand each other—causing missing data and “no communication” symptoms.

The INPRONIC Bidirectional Converter:

  • ✔ Validates each incoming J1939 frame
  • ✔ Reconstructs the message internally
  • ✔ Re-transmits at the opposite speed
  • ✔ Preserves 29-bit ID, PGN, SPN, priority, payload, and timing

Integrate Mixed-Speed J1939 Networks Without Conflict

Bridge 250 kbps and 500 kbps systems seamlessly — preserve PGNs, SPNs, and full diagnostic communication.

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True Bidirectional Translation

Unlike passive adapters, this device:

• Processes traffic from both sides simultaneously
• Guarantees <2 ms latency 
• Maintains arbitration ID integrity
• Preserves diagnostic frames (DTCs) without alteration 

Your ECUs behave as if they were designed for the same network.

Free shipping in the U.S.