M919

This document is a proprietary schematic diagram for the Digital Equipment Corporation (digital) M919 Bus Connector (part number M919-0-1, Revision A), created in 1969.

Intended solely for test and maintenance purposes, the schematic illustrates the detailed wiring and pinout between two components labeled "FLEXPRINT CONNECTOR #1" and "FLEXPRINT CONNECTOR #2." It shows how individual signals (identified by alphanumeric labels like BV1, BU1 for Connector #1, and BV2, BU2 for Connector #2) are routed through a series of numbered bus lines or intermediate points (ranging from O60 down to O1/O2), including both direct and specific cross-connections.