Digi IX14, Руководство пользователя

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Interfaces Wireless Wide Area Networks (WWANs)
IX14 User Guide 98
Signal strength for 4G cellular connections
For 4G connections, the RSRP value determines signal strength.
n
Excellent : > -90 dBm
n Good : -90 dBm to -105 dBm
n
Fair : -106 dBm to -115 dBm
n
Poor : -116 dBm to -120 dBm :
n
No service : < -120 dBm
See Show cellular status and statistics for procedures to view this information.
Signal strength for 3G and 2G cellular connections
For 3G and 2G cellular connections, the current RSSI value determines signal strength.
n
Excellent : > -70 dBm
n
Good : -70 dBm to -85 dBm
n
Fair : -86 dBm to -100 dBm
n
Poor : < -100 dBm to -109 dBm
n
No service : -110 dBm
See Show cellular status and statistics for procedures to view this information.
Tips for improving cellular signal strength
If the signal strength LEDs or the signal quality for your device indicate Poor or No service , try the
following things to improve signal strength:
n
Move the IX14 device to another location.
n
Try connecting a different set of antennas, if available.
n
Purchase a Digi Antenna Extender Kit:
l
Antenna Extender Kit, 1m
l
Antenna Extender Kit, 3m
AT command access
To run AT commands from the IX14 command line:

Command line
1. Log into the IX14 command line as a user with Admin access.
Depending on your device configuration, you may be presented with an Access selection
menu . Type admin to access the Admin CLI.
2. At the Admin CLI prompt, type modem at-interactive and press Enter . Type n if you do not
want exclusive access. This allows you to send AT commands to the device while still allowing
the device to connect, disconnect, and/or reconnect to the cellular network.
3. At the Admin CLI prompt, use the modem at-interactive command to begin an interactive AT
command session: