DEC to CTµL Line Driver

This document provides the schematic diagram for a DEC to CTµL line driver (Module W693-0-I). The technical documentation includes:

• Circuit Design: A detailed transistor-logic schematic showing the arrangement of transistors (2N4258) and diodes (D664, D662).
• Technical Specifications: Notes on electrical components including resistor values (2,200 Ω, 1/4 W, 5%) and transistor types.
• Revision History: Parts list references and revision control information (Rev D).

This schematic is intended strictly for test and maintenance purposes by the Digital Equipment Corporation.