KXJ11-CA Single-Board Computer Installation Guide

This document is the KXJ11-CA Single-Board Computer Installation Guide (EK-KXJCA-IN-001, 1st Edition, December 1986) by Digital Equipment Corporation.

It provides comprehensive instructions for installing and configuring the KXJ11-CA module, covering five main areas:

1. Selecting Operating Features: Details how to configure various board characteristics using jumper settings. This includes Q-Bus addressing (16, 18, or 22-bit, and base address), PROM memory mapping (low or high), power-up options (MicroODT or firmware), DMA requests, enabling/disabling locked instructions, console BREAK requests, HALT instruction behavior, and real-time clock interrupt frequency (50/60 Hz). It also specifies jumper settings for Serial Line Unit (SLU) baud rates (e.g., default 9600 for SLU1) and transmission/reception protocols (RS422, RS423, and CCITT R1360 for SLU2 Channel B).
2. Power Supply Considerations: Outlines the electrical requirements for the board, including maximum current draw at +5V and +12V, and bus loading, ensuring the power supply can support the module.
3. Installing in a Backplane: Provides guidance on physically installing the KXJ11-CA into a standard quad-height Q-Bus backplane, including preserving grant continuity with grant cards if needed, and lists detailed edge connector pin assignments.
4. Connectors and External Cabling: Describes the parallel I/O (J4) and three serial I/O (J1, J2, J3) interfaces, their functions (e.g., SLU1 for console, SLU2 for synchronous/asynchronous data with/without modem control), supported protocols (EIA RS232-C, RS422/RS423, CCITT R1360), recommended cables, and provides comprehensive pin assignments for each connector to facilitate proper external connections. It also mentions loopback connectors for testing.
5. Diagnostics: Explains how to use the onboard LEDs for error detection and status reporting during power-up and reinitialization. It also provides instructions for running diagnostic tests using the XXDP+ operating system to verify the module's proper operation.