PCL20 Parallel Communications Link

This user's guide provides comprehensive information on the PCL20 parallel communications link system. It covers the following key areas:

• General Description: An overview of the system, including block diagrams, specifications, and physical components.
• Installation: Step-by-step instructions for site preparation, hardware mounting, cabling, and system checkout.
• Operation and Programming: Detailed information for using the PCL11-B interface, including register descriptions, bit definitions, master and transmitter/receiver operations, and command procedures. It also explains how to use the Unibus adapter (UBA) for data transfers and interrupts.
• Maintenance: Guidelines for troubleshooting, including standalone and system diagnostic test procedures, as well as preventive and corrective maintenance.