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11: Troubleshooting and Contact Information
Figure 11-1. Diagnostic, Power, and Serial Port LEDs
Table 11-1. UDS2100 LEDs
LEDs Meaning
Power/Diagnostic (Blue)
Steady On = Power OK
Blinking 2x = No DHCP response
Blinking 2x = Setup Menu active
RX Serial 1 Activity LED (Green)
Off = No data activity
Blinking = Data being received by UDS2100 on channel 1
TX Serial 1 Activity LED (Yellow)
Off = No data activity
Blinking = data being transmitted from UDS2100 on channel 1
RX Serial 2 Activity LED (Green)
Off = No data activity
Blinking = data being received by UDS2100 on channel 2
TX Serial 2 Activity LED (Yellow)
Off = No data activity
Blinking = Data being transmitted from UDS2100 on channel 2
Ethernet Link LED on the left (Bi-color)
Off = No Ethernet link established
Solid Yellow = 10Mbps Ethernet link established
Solid Green = 100 Mbps Ethernet Link established
Ethernet Activity LED on the right (Bi-color)
Off = No data activity
Blinking Yellow = Half Duplex data activity
Blinking Green = Full Duplex data activity
UDS2100 User Guide 68