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  1. pdfNLM Technical Bulletin, January-February 1995 
    https://www.nlm.nih.gov/...hnical_bulletin_january_february_1995.pdf
    ... 0 (off) Start Char: 17 (DC1) Send Lines-EOL Char: 10 (LF) Prompt Char: 32 (“ “) NOTE: 9, ...