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Check the Cellular Modem's
Signal Strength (RSSI)
1
Click Status > Statistics.
2
Click the Cellular tab.
3
Note the RSSI (received signal strength indication) coverage value:
Signal Measurement
≤ -100 dBm
-99 to -90 dBm
-89 to -70 dBm
≥ -69 dBm
Note: The cellular status and signal strength LEDs also show modem status: off for no connection,
flashing while establishing, and on while established. Coverage is indicated by the number of LEDs
illuminated: four (very strong); three (strong); two (medium); one (weak); zero (unacceptable).
Configure Remote Cellular Access
If the allocated IP address is fixed and public, access the console server's HTTPS and
SSH services directly. If the IP address is dynamic and public, configure the console
server's Dynamic DNS client:
1
Click System > Dial.
2
Click the Internal Cellular Modem tab.
3
Select your Dynamic DNS provider from the Dynamic DNS pop-up menu.
4
Enter their settings for fields such as DDNS Hostname, DDNS Username and DDNS
Password.
If the allocated IP address is private, direct remote access is not possible. Use a VPN
instead.
Configure Managed Devices
1
Click Serial & Network > Serial Port.
To configure a port:
2
Click Edit.
3
Set the Common Settings for Port x to match the device connected to serial port x.
4
To enable remote access to the device, check the Console Server Mode radio button
in Console Server Settings and click the checkboxes for allowed protocols (e.g.
Telnet, SSH and Web Terminal).
5
Click Apply.
Note: Configure user access policies for connecting to such ports in Serial & Network > Users &
Groups. An AAA server can configure them remotely. See the Owner's Manual for more information.
17-10-147-93378E.indb 6
Signal Quality
Unacceptable
Weak-to-medium
Medium-to-strong
Very strong
6
11/2/2017 11:52:22 AM
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