Digi Connect IT 16, Руководство пользователя

Страница: 94 / 756

Interfaces Wide Area Networks (WANs)
Digi Connect IT® 16/48 User Guide 94
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 Connect IT 16/48 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 Connect IT 16/48 command line:

Command line
1. Log into the Connect IT 16/48 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 command to begin an interactive AT command
session:
> modem at-interactive
Do you want exclusive access to the modem? (y/n) [y]:
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
Do you want exclusive access to the modem? (y/n) [y]: n
Starting terminal access to modem AT commands.
Note that the modem is still in operation.
To quit enter '~.' ('~~.' if using an ssh client) and press ENTER