Signal Strength Indicators; Signal Bars Explained - Digi 5400-RM User Manual

Welcome
Name Function
Flashing – Unit is attempting to establish a cellular network connection OR the
Online
backup connection is in use.
(Cellular)
Solid – A cellular network connection has been established.
LTE Indicates a 4G/ LTE connection.
3G/ 2G Indicates a 2G or 3G cellular connection.
Flashing – Unit is attempting to establish a network connection on the LAN.
Backup
Solid – A network connection has been established on the LAN.
Signal Standard 5-bar signal strength indication; a minimum of two bars is suggested for
Strength reliable use.

Signal strength indicators

The weighted dBm measurements are negative numbers, meaning the smaller negative values
denote a larger number. So, for example, a -85 is a better signal than -90.
Note For more information regarding how signal strength is calculated and subsequently displayed via
the LED indicators, refer to

Signal bars explained

The LTE signal status bars are calculated using various algorithms based on the network type it is
connected to. For 4G LTE, the RSRP, SNR, and RSSI values are all factored in to determine the
reported signal strength bars. For 3G networks (including HSPA+) and 2G networks, the signal
strength bars are determined by the RSSI value.
Digi 5400-RM Cellular Remote Manager User Guide
Signal bars explained.

Signal strength indicators

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