Lantronix 900-422 User Manual

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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