LEDs

The VPU has eight LEDs for POWER, STATE, PORT[0…5] that light up red or green depending on the status of the system.

Power LED

LED	Red	Green	Description
Power	N/A	VPU powered up	The VPU is powered up with 24V.

State LED

LED	Red	Green	Description
State	OFF	OFF	The VPU is not powered up.
	OFF	Blinking	Initialization.
	OFF	ON	Operate.
	Blinking	OFF	Critical error.
	ON	OFF	Major error.
	Blinking*	Blinking*	Software update. *alternate blinking of green and red LED

Port LEDs

LED	Green	Description
Local port LED	ON	The VPU is operating and the port is functional (camera head detected).
	Blinking	Critical or major error related to this port.
	OFF	If the VPU is operating and the port LED is OFF, the port is not functional (no camera head is detected). Or, the VPU is not powered up. Or, software update ongoing.
Port LED array	“Knight rider”: port LEDs blinking one after the other.	Boot-up or initialization sequence.
	Synchronous blinking	Critical or major system-wide error.

Ethernet LEDs

Each Ethernet port has two LEDs. The leftmost one, LED 0 below, is yellow. The rightmost one, LED 1 below, is green. They behave the same for both port.

LED	State	Description
LED 0 (yellow)	OFF	The VPU is not powered-up. Or, boot-up sequence ongoing.
	Blinking	Initialization sequence. Or, the VPU is operating. Or, software update ongoing.
LED 1 (green)	OFF	The VPU is not powered-up. Or, boot-up sequence ongoing.
	Blinking	Initialization sequence. Or, the VPU is operating. Or, software update ongoing.