Laser Safety - H3C S5500-HI Switch Series Installation Manual

If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE) to
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filter interference from the power grid.
Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
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devices.
• Use electromagnetic shielding, for example, shielded interface cables, when necessary.
Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or
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overcurrent caused by lightning strikes.

Laser safety

WARNING!
Do not stare into any fiber port when the switch has power. The laser light emitted from the optical fiber
might hurt your eyes.
The S5500-HI switches are Class 1 laser devices.
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