 The manual page further limits the number of characters in the data field to 64 (or 32 data bytes).A record with an 8-hex-character address and 64 data characters would be 78 (2 + 2 + 8 + 64 + 2) characters long (this count ignores possible end-of-line or string termination characters).The file could be printed on an 80-character wide teleprinter.