The color and flashing frequency of an indicator light represent the status of a Smart Access Gateway (SAG) device.

Device model Indicator light Description
SAG-100WM LTE Indicates the connection status of the device.
  • On or off: an error occurred.
  • Flashing: working as expected.
Signal indicator light The number of bars indicates the strength of the 4G LTE signal. Three bars indicate the strongest signal.
WAN Indicates the Ethernet status.
  • On or off: an error occurred.
  • Flashing: working as expected.
Wi-Fi Indicates the Wi-Fi status.
  • On or off: an error occurred.
  • Flashing: working as expected.
RUN/SYS Indicates the system status.
  • On or off: an error occurred.
  • Flashing: working as expected.
CLOUD Indicates whether the device is connected to Alibaba Cloud.
  • On: connected to Alibaba Cloud.
  • Flashing: restoring the system or restoring to default settings.
  • Off: disconnected from Alibaba Cloud.
PWR Indicates whether the device is powered on.
  • On: powered on.
  • Off: not powered on.
RJ45 yellow light Indicates the working mode of the network interface controller (NIC):
  • On: Ethernet port working in 1000Base-T mode.
  • Off: Ethernet port working in 10/100Base-T mode.
RJ45 green light Indicates the connection status and data transmission status of the NIC:
  • On: connected to the Ethernet.
  • Flashing: transferring data.
  • Off: disconnected from the Ethernet.
SAG-1000 LTE Indicates the connection status of the device.
  • On or off: an error occurred.
  • Flashing: working as expected.
Signal indicator light Indicates the 4G LTE signal strength. Three bars indicate the strongest signal.
SYS Indicates whether the device is running as expected.
  • On or off: an error occurred.
  • Flashing: working as expected.
CLOUD Indicates whether the device is connected to Alibaba Cloud.
  • On: connected to Alibaba Cloud.
  • Flashing: restoring the system or restoring to default settings.
  • Off: disconnected from Alibaba Cloud.
PWR Indicates whether the device is powered on. On: powered on. Off: powered off.
Indicator light on the right side of the port Indicates the working mode of the NIC.
  • Green: Ethernet port working in 1000Base-T mode.
  • Yellow: Ethernet port working in 10/100Base-T mode.
Indicator light on the left side of the port Indicates the connection status and data transmission status of the NIC:
  • On: connected to the Ethernet.
  • Flashing: transferring data.
  • Off: disconnected from the Ethernet.
Some SAG devices use the following indicator lights:
Power Indicates whether the device is powered on. On: powered on. Off: powered off.
Alert Indicates whether the device is working as expected.
  • Green: working as expected.
  • Yellow: an error occurred.
The cloud indicator light Indicates whether the device is connected to Alibaba Cloud.
  • Green: connected to Alibaba Cloud.
  • Yellow: disconnected from Alibaba Cloud.