Installation Manual

7
Figure 6 Use an ESD-preventive wrist strap
2
3
1
(1) ESD-preventive wrist strap (2) Lock
(3) Alligator clip
CAUTION:
• Check the resistance of the ESD-preventive wrist strap for safety. The resistance readin
g
should be in the
range of 1 to 10 megohm (Mohm) between human body and the ground.
• No ESD-preventive wrist strap is provided with the HP UTM device. Prepare it yourself.
EMI
To prevent electromagnetic interference (EMI) when using the UTM device, note the following guidelines:
• Take measures against interference from the power grid.
• Do not use the UTM device together with the grounding equipment or light-prevention equipment of
power equipment, and keep the UTM device far away from them.
• Keep the UTM device far away from high-power radio launchers, radars, and equipment with high
frequency or high current.
NOTE:
Use electromagnetic shielding when necessary.
Lightning protection
To protect the UTM device from lightning better, do as follows:
• Make sure the grounding cable of the chassis is well grounded.
• Make sure the grounding terminal of the AC power receptacle is well grounded.