Planet GS-5220 User Manual page 23

User's Manual of GS-5220 PoE Series Managed Switch
 Four RMON groups (history, statistics, alarms and events)
 SNMP trap for interface Link Up and Link Down notification
 System Log
 PLANET Smart Discovery Utility for deployment management
 Smart fan with speed control
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Redundant Power System (GS-5220-24P(L)4XR/GS-5220-48P(L)4XR/GS-5220-16UP4S2XR/GS-5220-24UP(L)4XR)
■ Redundant 100~240V AC/36-60V DC dual power
■ Active-active redundant power failure protection
■ Backup of catastrophic power failure on one supply
 Fault tolerance and resilience
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