Appendix A: LED Indicator Explanations

Component

LED Status

Meaning

SSD Activity

Blinking Amber

Data access activity

Off

No data access activity

System Status

Solid Green

Defined by GPIO

Solid Red

Defined by GPIO

Off

Defined by GPIO

System Power

Solid Green

The system is powered on

Off

The system is powered off

LTE Status

Blinking Amber

Link established and activity on port

Solid Amber

Link established, no activity

Off

No link is established

LAN Port (L1–L5)Link Activity

Blinking Amber

Link established and activity on port

Solid Amber

Link established, no activity

Off

No link is established

LAN Port (L1–L5)Speed

Solid Amber

Operating at 100 Mbps

Solid Green

Operating at 1 Gbps

Off

Operating at 10 Mbps

SFP Port (S1–S2)

Blinking Amber

Fiber activity on this port

Solid Amber

Fiber link status

Off

No link is established

COM Port (C1–C2)TX Activity

Blinking Amber

Data transmitting

Off

No data activity

COM Port (C1–C2)RX Activity

Blinking Amber

Data receiving

Off

No data activity