Interfaces
Wide Area Networks (WANs)
LR54 User Guide
124
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
Signal strength for 3G and 2G 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
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 LR54 device to another location.
n
Try connecting a different set of antennas, if available.
n
Purchase a Digi Antenna Extender Kit:
l
AT command access
To run AT commands from the LR54 command line:
Command line
1. Select the device in Remote Manager and click
Actions
>
Open Console
, or log into the LR54
local command line as a user with full Admin access rights.
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
command to begin an interactive AT
command session:
4. 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.
The following is an example interactive AT command:
> modem at-interactive
