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Cisco Integrated Services Router Hardware Installation Guide
OL-27407-01
Chapter1 Product Overview
Cisco 810 Series
Table 1-10 describes the 4G LTE LEDs for the Cisco 819 ISR.
Boot loader errors Blinking Red and Blue FLASH file system failure.
Blinking Red and Off Environment variable failure.
Bad MAC address.
Ethernet failure during the image recovery.
Boot environment failure.
No Cisco image file.
Boot failure.
Cisco IOS errors Red Software failure. Try to disconnect and
reconnect the unit power.
Table1-9 WLAN LED Descriptions (continued)
WLAN LED Color Description
Table1-10 4G LTE LED Descriptions
LED Color Description
SYS Yellow FPGA download is complete.
Green (blinking) ROMMON is operational.
Green (solid) IOS is operational.
Green (four blinks
during bootup) Reset button has been pushed during the bootup.
Off After powering up, when FPGA is being downloaded (in
ROMMON).
ACT Green Network activity on FE Switch ports, GE WAN port, 3G
cellular interface, and serial interfaces.
Off No network connectivity.
WWAN Green Module is powered on and connected but not
transmitting or receiving.
Green (slow blinking) Module is powered on and searching for connection.
Green (fast blinking) Module is transmitting or receiving.
Off Module is not powered.
GPS Green (solid) Standalone GPS.
Green (slow blinking) GPS is acquiring.
Yellow (solid Assisted GPS.
Yellow (slow blinking) Assisted GPS is acquiring.
Off GPS is not configured.