Chapter 1: Introduction
6 NS3552-8P-2S-V2 User Manual
ports. A maximum of 30.8 W is available on each Gigabit port of the industrial managed 
switch for powering per PD, with a maximum PoE delivery of 240 W for all ports in order 
to satisfy the increasing needs of power consumption by PDs. Providing Gigabit 
throughput and high power supply, the industrial managed switch optimizes the 
installation and power management of network devices such as 11n wireless access 
points (AP) with Gigabit PoE LAN port, security PTZ / Speed Dome network video 
camera, large screen PoE Video phones, thin-clients, etc.
Intelligent powered device alive check
The industrial managed switch can be configured to monitor connected powered device 
(PD) status in real time via a ping action. After the PD stops working and responding, 
the industrial managed switch resumes the PoE port power and puts the PD back to 
work. The industrial managed switch greatly enhances the network reliability through 
the PoE port resetting the PD’s power source and reducing the administrator 
management burden.
PoE schedule for energy saving
Under the trend of energy saving worldwide and contributing to environmental 
protection, the industrial managed switch can effectively control the power supply in 
addition to its capability of providing high Watt power. The “PoE schedule” function 
helps you to enable or disable PoE power feeding for each PoE port during specified 
time intervals, and is a powerful function to help SMBs or enterprises save power and 
money.