DIV32 Hardware Installation Guide

This document is the "DIV32 Hardware Installation Guide," published by Digital Equipment France in October 1990.

Its primary purpose is to provide detailed instructions for the safe installation, configuration, and troubleshooting of the DIV32, an ISDN (Integrated Services Digital Network) Basic Rate access communications controller, for various MicroVAX Q-Bus systems.

The guide covers two main versions of the DIV32 module:

• DIV32-M: For installation into BA23, BA123, and H9642 system enclosures. This version requires an interface panel and internal cabling.
• DIV32-S: For installation into BA200 series enclosures, connecting directly via its module handle.

Key aspects covered in the document include:

• ISDN Overview: Details on CCITT standards, country-specific specifications, and ISDN network characteristics (Basic Access, S-Interface, electrical and mechanical interfaces, S-Bus configurations).
• DIV32 Architecture: A general description of the DIV32 controller, its Q-Bus compatibility, power requirements, and host machine considerations.
• Pre-installation: Site preparation, unpacking kits, software backup, and checking system configurations against power and bus load limits.
• Installation Procedures: Step-by-step instructions for physically installing the DIV32-M and DIV32-S modules, including cabling, panel installation, and DIP switch configuration for CSR addresses.
• Diagnostics and Troubleshooting: Guidance on running CPU ROM-based diagnostics and MicroVAX Diagnostic Monitor (MDM) tests (including functional and exerciser tests), along with troubleshooting flowcharts for both DIV32 versions.
• Safety and Compliance: Numerous warnings emphasize the importance of qualified service personnel, anti-static precautions, software backup, and compliance with regulations (e.g., UK BABT requirements, FCC).

The intended audience for this guide includes Digital Field Service personnel, Digital's self-maintenance customers, OEMs, and third-party maintenance companies, who are expected to be familiar with Q-Bus, MDM, and general fault-finding procedures.