Installation Guide
QX-S5500G Series Ethernet Switches
10. Appendix C Ports and LEDs
10-15
Pin
10BASE-T/100BASE-TX 1000BASE-T
Signal Specification Signal Specification
Table 10-13 Pin arrangement of MDI-X
Pin
10BASE-T/100BASE-TX 1000BASE-T
Signal Specification Signal Specification
10.3 LED
10.3.1 System status LED
System status LED shows the operating status of the switch.
Table 10-14 System status LED description
LED mark Status Description
SYS
The switch is operating correctly.
The switch is performing power-on self test (POST).
The switch has failed the POST or is faulty.
Flashing yellow
Some ports have failed to pass POST or are faulty.