
Getting Started
19
Chapter 1
Connecting the
Mainframe to a
Permanent Earth
Ground
The mainframe must be connected to a permanent earth ground for line
frequencies greater than 66 Hz. This connection is made on the back of the
mainframe:
1. Connect a 16 AWG (1.3 mm or larger) wire to the PEM nut shown in
Figure 1-1. The wire must be green with a yellow stripe, or bare (no
insulation). Use a m4 x 10 screw, grounding lug, and toothed washers
(or toothed lug) as shown in the Figure.
2. Attach the other end of the wire to a permanent earth ground using
toothed washers or a toothed lug.
WARNING
For protection from electrical shock when operating at
frequencies greater than 66 Hz, connect the chassis ground
terminal to permanent earth ground.
AVERTISSEMENT
Risque de Choch èlectrique. Si la frèquence du secteur est
supèrieure à 66 Hz, relier la borne de masse du chassis à une
prise de terre fixe.
Figure 1-1. Connecting an HP E840xA Mainframe to a Permanent Earth Ground
(HP E8404 shown, HP E8402 is similar)
TOOTHED
WASHERS
BACK COVER
WIRE LUG
GREEN WIRE
WITH YELLOW
STRIPE
PERMANENT EARTH
GROUND CONNECTION
LOCATION
Содержание E8402A
Страница 8: ...10 Contents ...
Страница 12: ...14 Notes ...
Страница 14: ......
Страница 26: ...28 Getting Started Chapter 1 ...
Страница 42: ...44 Using the Enhanced Monitor Chapter 2 ...
Страница 214: ...216 Servicing Your Mainframe Chapter 5 ...
Страница 226: ...228 HP E8402 E8404A Product Specifications Appendix A ...