VAX 4000 Site Preparation

This document, "VAX 4000 Site Preparation," serves as a comprehensive guide for preparing a location for the installation and operation of VAX 4000 systems and their associated expanders.

Intended for Digital service personnel and customers planning self-maintenance, it outlines the essential physical, environmental, and power requirements necessary to ensure smooth system setup and dependable operation. The manual emphasizes that site preparation must be completed before the system shipment arrives.

Key information covered includes:

• Physical Requirements: Detailed dimensions for various VAX 4000 enclosures (BA430, BA440, BA215) and expanders (B400X, R400X, B213F, R215F), including shipping container sizes and operational footprint. It also specifies necessary clearances for maintenance access and airflow (e.g., 1m front, 5cm sides/rear).
• Environmental Conditions: Acceptable operating and non-operating ranges for temperature and humidity, along with guidance on managing static electricity (recommending >40% relative humidity and anti-static measures). It also addresses heat dissipation and acceptable noise levels (recommending an open office environment).
• Electrical Specifications: Comprehensive details on AC voltage ranges (100-120 Vac and 220-240 Vac options), power-source phase, frequency, steady-state current, inrush current, and maximum power consumption. A strong recommendation is made for dedicated, isolated ground circuits for each VAX 4000 system and expander to prevent power disturbances from other equipment.
• Additional Expander Specifics: Notes special requirements for expanders, such as dedicated wall outlets and the need for installation by Digital Customer Services if not part of a factory-configured system.
• Power Cable Ordering: An appendix lists country-specific power cable order numbers, noting that 120-Vac cables for North America are usually included, while others must be ordered separately.

The document includes detailed tables and figures for specific models to guide users through the site preparation process.