Lantronix XPress-DR-IAP User's Guide Page 27

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Introduction
1.10 LEDs
The device contains the following LEDs:
Two Green (R for ready, L for link)
Three Yellow (A for active, serial transmit, and serial receive)
One Red (F for fault)
RESET
10/100BASE-T
SERIAL
RS232
RS485
FR
AL
READY
LINK
RECEIVE
A
CTIVE
TRANSMIT
FAULT
Table 5 - DSTni-XPress DR LED Functions
LED Meaning
R (Green)
Ready (Solid=ready, blinking = error message, port
busy)
L (Green) Link (socket connection made) = Solid
A (Yellow) Activity (network) = Random Flashing
TXD (Yellow) Transmitting serially = Flashes during transmit
RXD (Yellow) Receiving serially = Flashes during receive
F (Red)
Fault in XPress DR communication
(read error) or
XPress DR is in Configuration Mode
Simultaneously lit F (Red) and R (Green) LEDs mean something is wrong. If the F (Red)
LED is lit or blinking, count the number of times the R (Green) LED blinks between its
pauses. Six possible blink patterns, detailed in the following table, indicate which fault
condition exists.
Table 6 - LED Error Indications
LED Error
Steady F (Red) and
Blinking R (Green)
1 blink = EPROM checksum error
2 blinks = RAM error
3 blinks = Token Ring error
4 blinks = EEPROM checksum error
Blinking F (Red) and
blinking R (Green)
1 blink = Faulty network connection
2 blinks = No DHCP response
4 blinks = Setup Mode
DSTni-XPress DR User Guide 1-13
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