Uses RS-422 for differential signaling, typically operating at a baud rate of 4800 (standard) or 38400 (High-Speed/HS).

While the core structure remains the same as earlier versions (like v2.0 or v3.01), Version 4.11 includes updates for modern navigation needs:

Transmits data as printable ASCII sentences starting with a $ and ending with a checksum and .

"Standards are the only thing keeping us alive right now," Elena shouted, stripping a wire with her teeth.