The 4703 Teletype Transmitter is a parallel-to-serial converter implemented on a double-length DEC System Module board. It includes all necessary buffering, gating, and synchronization to transfer 5-bit character data between parallel digital devices and serial teletype lines. Key features include a jumperable Stop Element Counter for 1.0, 1.5, or 2.0 units of stop time, flag signaling for character transmission status, and compatibility with various external devices beyond standard teletype machines. The document provides detailed technical specifications on inputs (clock, read-in, and signal levels), power requirements, output characteristics, and jumper configurations for customization.
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