Digi IX40 User Manual page 30

About the Digi IX40
Flashing blue
Connected to 4GLTE and in the
process of connecting to a device on
its ETH2 port.
Flashing magenta
Connected to 5Gand in the process
of connecting to a device on its
ETH2 port.
Alternating Red/yellow (or orange)
Upgrading firmware.
1. Or an unknown type of cellular network.
Signal quality indicators
LEDs labeled 1 through 5 Indicate the cellular service quality level.
Signal bars
Note See Signal quality bars explained
calculated and subsequently displayed via the LED indicators.
Signal quality bars explained
The signal status bars for the Digi IX40 measure more than simply signal strength. The value reported
by the signal bars is calculated using an algorithm that takes into consideration the Reference Signals
Received Power (RSRP), the Signal-to-noise ratio (SNR), and the Received Signal Strength Indication
(RSSI) to provide an accurate indicator of the quality of the signal that the device is receiving.
For 3Gnetworks (including HSPA+) and 2Gnetworks, the signal strength bars are determined by the
RSSI value.
The Digi IX40 cellular modem uses both 5GSA (standalone) and NSA (non-standalone) mode,
depending on your connection to the cellular network. When operating in NSA mode, a device will
IX40 User Guide
WARNING! DO NOT POWER OFF DURINGFIRMWARE UPGRADE.
Weighted dBm
-113 to -99
-98 to -87
-86 to -76
-75 to -64
-63 to -51
for more information regarding how signal strength is
Digi IX40 external hardware
Solid blue
Connected to the 4GLTE and also
has a device link to its ETH2 port.
Solid magenta
Connected to 5Gand also has a
device link to its ETH2 port.
Quality
Bad
Marginal
OK
Good
Excellent
30