Synchronous Modem Interface Module for DS11

Summary: This document is a technical schematic and parts list for a "Synchronous Modem Interface Module" used in the DS11 system. The diagram illustrates the layout of the circuit board, featuring a grid of 32 integrated circuit (IC) locations (E1 through E32). It includes a wiring/jumper table and a comprehensive parts list detailing capacitors, resistors, diodes, and IC types (such as MC1488, MC1489, and various 7400-series logic chips) required to assemble the module. The document also specifies standard component tolerances (100V 20% for capacitors, 1/4W 5% for resistors) and includes board assembly reference notes.