Before You Start - GE D20MX User Manual

D20MX Processor
Chapter 1: Before You Start
Safety precautions
D20MX HARDWARE USER'S MANUAL

Before You Start

The new D20MX processor card is a pin-for-pin compatible replacement for all generations
of the D20 SBC, providing the latest revisions of common D20 applications and
performance enhancements to support NERC-compliant Cyber security.
Before you begin installing and using the D20MX, review the information in this chapter,
including the following topics:
• Safety precautions
• Regulatory compliance information
• Product overview
• Product specifications
• Storage recommendations
Read and thoroughly understand this manual before installing and operating the unit.
Save these instructions for later use and reference.
WARNING! Failure to observe the instructions in this manual may result in serious
injury or death.
Follow all safety precautions and instructions in this manual.
Only qualified personnel should work on the D20MX. Maintenance personnel should be
familiar with the technology and the hazards associated with electrical equipment.
• Never work alone.
• Before performing visual inspections, tests, or maintenance on this equipment, isolate
or disconnect all hazardous live circuits and sources of electric power. Assume that all
circuits are live until they have been completely de-energized, tested, and tagged. Pay
particular attention to the design of the power system. Consider all sources of power,
including the possibility of back feed.
• Turn off all power supplying the equipment in which the D20MX is to be installed
before installing and wiring the D20MX.
• Operate only from the power source specified on the installed power supply module.
• Beware of potential hazards and wear personal protective equipment.
GENERAL 13