External LED Specifications

External LEDs

Table. External LEDs
Characteristic	Description
LEDs	Network port link LEDs System LED External time synchronization LED
Location

Network port link LEDs

Table. Network port link LED specifications
State and Color	Condition
Off	The driver is not loaded, the Ethernet link is down or the port is disconnected.
Constant green	The driver is loaded and the Ethernet link is up, but there is no RX or TX traffic.
Flashing green	The driver is loaded and there is RX or TX traffic on the Ethernet link.

Note: On an NT200A02-SCC running at 8 × 10 Gbit/s, each of the four Activity LEDs on each 40 Gbit/s port (0 and 1) reflects if there is link and/or traffic on the associated 10 Gbit/s port.

Note: On an NT200A02-SCC running at 4 × 25 Gbit/s, each of the four Activity LEDs on the corresponding 100 Gbit/s port (0) reflects if there is link and/or traffic on the associated 25 Gbit/s port.

System LED

Table. System LED specifications
State and Color	Condition
Off	The power is off.
Constant red	During start-up: Power is on. The SmartNIC is checking the power supplies.
Flashing red	After start-up: The power is on. There is a fatal hardware error. An entry is created in the hardware log.
Constant yellow	During start-up: The power is on. The power supplies are working.
Flashing yellow	There is a new entry in the hardware log.
Constant green	The FPGA is loaded, and the system is running.

External time synchronization LED

Table. External time synchronization LED specifications
State and Color	Condition
Off	No driver is loaded, or no valid PPS signal is detected or generated on the external SMA time synchronization connector and the Ethernet link on the external RJ45 time synchronization connector is down.
Constant yellow	The Ethernet link on the external RJ45 time synchronization connector is up.
Flashing green synchronous with the PPS pulse	The Ethernet link on the external RJ45 time synchronization connector is down, and the following condition is fulfilled: When the external SMA time synchronization connector is configured as a: PPS input connector: A driver is loaded, and a valid PPS signal as relevant is detected. PPS output connector: A driver is loaded, and a PPS signal is generated.
Yellow with flashing green synchronous with the PPS pulse	The Ethernet link on the external RJ45 time synchronization connector is up, and the following condition is fulfilled: When the external SMA time synchronization connector is configured as a: PPS input connector: A driver is loaded, and a valid PPS signal as relevant is detected. PPS output connector: A driver is loaded, and a PPS signal is generated.