User Guide
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1.4.2.3 RESET Button
To restore factory defaults, press and hold the button for more than 5 seconds when the switch functions
correctly. When pressing it for a while, SYS LED will be off and POWER LED is solid. The device will
restart and all LEDs will be on. When the rebooting finished, SYS LED will be blinking, indicating restoring
to default factory settings.
1.4.3 Fan
This device has three fans for heat dissipation, one for mainboard and two for power supply to ensure
stable power supply.
1.5 Interface Serial Number
1-24: 24 10/100/1000Mbps auto-negotiation RJ45 ports
21-24/SFP1-SFP4: 1000Mbps combo (copper/fiber)ports
Console: RS232 asynchronous serial port