Protocol scope and method
For a complete frame, delimiters are removed, escaped bytes are restored and the final byte is treated as the transmitted checksum.
BCC = byte0 XOR byte1 XOR ... XOR byteN.
Common questions
Does the JT/T 808 BCC Checksum leave my browser?
No application upload is used. Avoid putting sensitive production data in shareable URLs.
Is this a standards compliance test?
No. Confirm the edition and vendor profile with licensed documents and your target platform.
Offline diagnostic aid. Verify fields, version and vendor extensions before production use.