Lantronix 900-422 - Manual (Page 23)

3: Installation and Hardware
XPress DR+ User Guide 23
LEDs
Figure 3-9. LEDs
Table 3-6. LED Functions
LED Meaning
Serial port - TXD LED (Yellow) Off = No Transmit Data from XPress DR+
Blinking = Data being transmitted from XPress DR+
Serial port - RXD LED (Green) Off = No Received Data by XPress DR+
Blinking = Data being received by XPress DR+
Ethernet port - 10/100 Link (Green)
Off = No Ethernet Link established
Steady On = Ethernet Link is established
Ethernet port – Activity (Yellow)
Off = No Data activity
Blinking = Data activity
Power/Diagnostic LED (Orange) Steady On = Power OK
Blinking 2x = No DHCP response
Blinking 2x = Setup Menu active--startup
RXD Activity LED
TXD Activity LED
Ethernet Link LED
Ethernet Activity LED
Power/Diagnostic LED