Safety Notices; Safety Summary; Ground The Equipment; Power Supplies - GE SBC330 3U VPX Hardware Reference Manual

1.5 Safety Notices

Publication No. SBC330-0HH/3
All numbers are expressed in decimal, except addresses and memory or register
data, which are expressed in hexadecimal. Where confusion may occur, decimal
numbers have a 'D' subscript and binary numbers have a 'b' subscript. The prefix
'0x' shows a hexadecimal number, following the 'C' programming language
convention. Thus:
One dozen = 12 = 0x0C = 1100
D
The multipliers 'k', 'M' and 'G' have their conventional scientific and engineering
3
meanings of x10 , x10
description of the size of memory areas, when 'K', 'M' and 'G' mean x2
30
x2 respectively.
NOTE
When describing transfer rates, 'k' 'M' and 'G' mean x10
Signal names ending with a tilde (~) denote active low signals; all other signals are
active high.
GE Intelligent Platforms Ltd is referred to in the text as GEIP.

1.5.1 Safety summary

Observe the following general safety precautions during operation of this
equipment. Failure to comply with these precautions or with specific Warnings
and/or Cautions elsewhere in this manual violates safety standards of design,
manufacture and intended use of the equipment. GE Intelligent Platforms Ltd
assumes no liability for the user's failure to comply with these requirements.
The safety precautions listed below represent warnings of certain dangers of
which GEIP is aware. Take note of these warnings and take all other safety
precautions necessary for the safe operation of the equipment in your operating
environment.

1.5.2 Ground the equipment

The SBC330 expects to operate within a chassis which has a Chassis‐Ground Earth
connection. On both SBC330 and SBC330RTM, Chassis Ground plane areas are
isolated from Digital Signal Ground.

1.5.3 Power supplies

WARNING
Do not exceed 15 A supply current – a fuse or circuit breaker must be fitted.
Do not reverse bias the input supply.
Power supply problems should be dealt with only by qualified personnel.
CAUTION
The SBC330 has no built-in fuses or over-current mechanisms and therefore requires an external
over-current mechanism.
b
6 9
and x10 respectively. The only exception to this is in the
3 6 9 10
, x10 and x10 not x2 , x2
10 20
, x2 and
20 30
and x2 .
Introduction 11