Ethernet port LEDs
Each of the four Ethernet ports on the DW4020 has two LEDs associated with it. One LED is green and one is yellow. See Figure 70.
The green LED will be on if power is applied to the DW4020 and a 100baseT Ethernet device is connected to the corresponding Ethernet port. Otherwise, the green LED will be off.
if the power is on and the light is off while a network device is connected, then the device is a 10baseT device and the port is autosensing.
The yellow LED will also be on when power is applied to the DW4020. It will flash momentarily when there is LAN activity on the corresponding Ethernet port.
Green LED | Yellow LED |
Figure 70: Ethernet port LEDs
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Appendix C • Installing the DW4020 Manually
