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80-001114 SysLINK Hardware Manual Page 22
USB/Serial/Terminal/Modem Port LEDs
Each port has a Port LED that describes port activity. Table 3-2 describes the various Port
LED states.
Port LED Condition Meaning
Off Port is closed or no power.
Solid Green Port is open, but idle.
Blinking Green Port is open, and data is being transmitted or received. When data is
being continuously transferred, this LED will blink approximately 2
times per second.
Red Blinks Data errors will cause periodic red blinks. Persistent red blinks may
imply a configuration problem (incorrect baud rate, parity settings,
etc.).
Solid Red Port hardware has failed.
Table 3-2: Port LED Conditions
Ethernet LEDs
The Ethernet port LED describes the state of the network connection on that port. Table 3-3
describes the various Ethernet LED states.
Ethernet LED Condition Meaning
Solid Green Ethernet link is good.
Green Blink Network traffic was detected.
Red There is an Ethernet error.
Off The Ethernet cable is bad or not connected.
Table 3-3: Ethernet LED Conditions
Cellular LEDs
The Cellular mode LEDs describe both the mode and state of the cellular connection. The
number of LEDs that are lit indicates the mode. The behavior of the LEDs indicates the
status. Table 3-4 describes the modes that the port is in.
Table 3-5: Cellular LED describes the various LED states.