| Technology |
| Standards |
IEEE 802.3, 802.3u, 802.3x ,802.3af (Power over Ethernet) |
| Processing Type |
Store & forward wire speed switching |
| MAC Addresses |
1K |
| Memory Bandwidth |
3.2 Gbps |
| Frame buffer memory |
512 Kbit |
| Flow Control |
IEEE802.3x flow control, back pressure flow control |
| Interface |
| RJ45 ports |
10/100 Base-T(X) auto negotiation speed, F/H duplex mode,
and auto MDI/MDIX connection |
| LED Indicators |
Power, 10/100M, Link/Act . |
| Ethernet Isolation |
1500 Vrms 1 minute |
| Frame Ground for EMS Protection |
Yes |
| Cable |
Ethernet : 2-pair UTP/STP Cat.3,4,5, EIA/TIA-568 100-ohm |
| Fast Ethernet : 2-pair UTP/STP Cat. 5, EIA/TIA-568 100-ohm |
| Power Input |
| Input Voltage Range |
+46 ~ +55VDC for PoE output |
| Power consumption |
1.3A@48VDC, ± 5% arrowed |
| Protection |
Power reverse polarity protection |
| Frame Ground for EMS Protection |
Yes |
| Connection |
3-Pin Removable Terminal Block |
| PoE Output |
| PoE Compliance |
100% IEEE 802.3af compliant |
| PoE Classification |
PSE (Power Sourcing Equipment) |
| PoE Voltage |
+46 ~ +48 VDC depending on power input |
| PoE Power |
Up to 15.4 watts per channel |
| PoE Operation |
Automatic detection and power management |
| Mechanical |
| Case |
Plastic |
| Flammability |
UL 94V-0 |
| Dimensions |
33 mm x 107 mm x 78 mm (W x H x D) |
| Installation |
DIN rail mount |
| Environmental |
| Operating Temperature |
-30°C ~ +75°C |
| Storage Temperature |
-40°C ~ +85°C |
| Ambient Relative Humidity |
10% to 90% non-condensing |
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Mon. May 21, 2012 
The NS-205PSE is a 5-port unmanaged PoE (Power-over-Ethernet) Industrial Ethernet switch, it has 4 PoE ports which are classified as power source equipments (PSE).The NS-205PSE makes centralized power supply come true and provides up to 15.4 watts of power per port. The NS-205PSE can be used to power IEEE802.3af compliant powered devices (PD) by Ethernet cable and eliminates the need for additional power wiring. 
