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1、1*1000M SC fiber interface (FC/LC optical port can be customized); 4*10/100M Ethernet interfaces
2、Maximum transmission distance: 0.5 ~ 120 km. 
3、The dynamic buffer allocation in front equalizes the network load and prevents blocking. 
4、adopt IEEE802.3 10BaseT Ethernet and IEEE802.3u 100base-tx,IEEE802.3ab 1000base-tx and 1000base-fx fast Ethernet standards; 
5、 Each UTP exchange port of the exchange port can automatically recognize the straight line (MDI) and the cross line (mdi-x). 
6、 Support 1024 MAC addresses; 
7、 Automatic MAC address learning and update function. 
8、select store-and-forward
9、Ballast provides maximum 8G data storage bandwidth; Enable LED indicator light to monitor the working status of each port

Parameters  Specification
Standards IEEE 802.3 10base-T
IEEE 802.3u 100base-TX
IEEE 802.3ab 1000base-TX/FX
Rj45 port 4 Rj45 port       10/100/1000base-T(X) auto negotiation speed                          Auto MDI-MDI-X connection
                          Up to 100M Cat-5 transmission distance
Fiber port 1 Fiber Port
Comply with IEEE802.3z
Rate: 1000Mbps
Wavelength: 850/nm1310nm/1550nm
Up to 550M transmission distance with multi-mode
Up to 20km40km60km80km transmission distance with single-mode                                           SC/LC interfaces optional
Switch Properties Mac address table:1k             
Memory buffer:256K
Acket Buffer Size: 1Mbit
Processing Type: Store and Forward
Power Supply External : DC/5V2A
Built-in: 90 V to 240 V AC 50Hz to 60 Hz
Power Consumption : ≤5W
Operating Temperature 0 °C to +65 °C
Storage Temperature -20 °C to +65 °C
Relative Humidity 5% to 90% (non-condensing)
Dimensions 95mm * 70 mm * 25mm
Weight 165g