CommScope PFU-P-E-O-060-01, Руководство пользователя

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1-Port 5Gb PoE Extender Manual
6
Extender Surge Protection
Long length DC low voltage electrical systems are at increased risk of:
•
Noise from high voltage cables
•
Higher current in the event of a short circuit
•
Strong electrical surges due to lightning strikes or other EM events in close vicinity
The PoE Extender provides multiple levels of electrical protection:
•
Primary Protection:
•
2.5kA Metal oxide varistors - operate for slower surges as well as fast surges
•
Protects both differential and common mode
•
Secondary Protection:
•
MOV and Inductors - reduce surge voltage down to ~100-150
•
Tertiary Protection:
•
Transient voltage suppressors - work at relatively low/slow surges, adds an extra
layer of protection against voltage spikes
•
Protects differential mode only
•
Clamps voltage spikes to 80-100V
Additional protection elements include:
•
Cross-polarity protection to simplify installation - the circuit will work regardless of the
input polarity
•
AC cross protection:
•
4A non replaceable fuses
•
No exposed high voltage pads
•
High power inductors used as coordinating elements to maximize energy efficiency
•
Sealed enclosure for environmental protection