User Manual

Table Of Contents
14
Centralized Power Management for Gigabit Ethernet PoE Networking
To fulfill the needs of higher power required PoE network applications with Gigabit speed transmission, the NS4802 features
high-performance Gigabit IEEE 802.3af PoE (up to 15.4 watts) and IEEE 802.3at PoE+ (up to 30 watts) on all ports. It perfectly
meets the power requirement of PoE VoIP phone and all kinds of PoE IP cameras such as IR, PTZ, speed dome cameras or
even box type IP cameras with built-in fan and heater for high power consumption.
The NS4802’s PoE capabilities also help to reduce deployment costs for network devices as a result of freeing from restrictions
of power outlet locations. Power and data switching are integrated into one unit, delivered over a single cable and managed
centrally. It thus eliminates cost for additional AC wiring and reduces installation time.
Built-in Unique PoE Functions for Surveillance Management
As a managed PoE Switch for surveillance network, the NS4802 features intelligent PoE Management functions:
Scheduled Power Recycling
SMTP/SNMP Trap Event Alert
PoE Schedule
Scheduled Power Recycling
The NS4802 allows each of the connected PD (Powered Device) to reboot in a specific time each week. Therefore, it will reduce
the chance of PD (Powered Device) crash resulting from buffer overflow.
SMTP/SNMP Trap Event alert
Though most NVR or camera management software offer SMTP email alert function, the NS4802 further provides event alert
function to help to diagnose the abnormal device owing to whether or not there is a break of the network connection, loss of PoE
power or the rebooting response by PD Alive Check process.
PoE Schedule for Energy Saving
Besides being used for IP surveillance, theNS4802 is certainly applicable to construct any PoE network including VoIP and
wireless LAN. Under the trend of energy saving worldwide and contributing to the environmental protection on the Earth, the
NS4802 can effectively control the power supply besides its capability of giving high watts power. The “PoE schedule” function
helps you to enable or disable PoE power feeding for each PoE port during specified time intervals and it is a powerful function
to help SMBs or enterprises save power and money.