1-16
Cisco 819 Integrated Services Router Hardware Installation Guide
OL-23125-02
Chapter 1 Product Overview
Hardware Features
Table 1-7
describes the 4G LTE LEDs for the Cisco 819 ISR.
Table 1-7
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.
RSSI
Green (solid)
Signal > –60 dBm
Very strong signal
Green (three blinks and
then a long pause)
Signal <= –60 to 74 dBm
Strong signal
Green (two blinks and
then a long pause)
Signal <= –75 to –89 dBm
Fair signal
Green (one blink and
then a long pause)
Signal <= –90 to –109 dBm
Marginal signal
Off
Signal <= –110 dBm
Unusable signal
Summary of Contents for 819 series
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