User guide

9522B & COM9522B Iridium Data Modem
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there are no obstructions to the antennas when installing. You may need to reposition
or elevate your antenna to obtain the best reception.
The Signal Quality AT command can be used to confirm signal strength during the
installation/repositioning of the antenna. This will require the use of a laptop
connected to the COM9522B interface and a terminal emulator. Once the terminal
emulator is connected the following command can be entered to check signal
strength:
AT+CSQ
The modem should return a value of between 0 and 5 within 10 seconds. Attempt to
get the largest value during your installation/repositioning.
Problem: LoggerNet immediately brings back an error message saying that
communications with the station have failed.
Solution: Sometimes PakBus© beacons sent to other stations by LoggerNet interfere
with successful communications using Iridium Satellite Modems. Either turn
PakBus© beaconing off or disable communications with your other stations when you
attempt to download using Iridium. This can be accomplished in the Setup applet in
LoggerNet. Finally, reboot LoggerNet to clear the communications queue of any
tasks.
Problem: Loggernet makes several attempts to connect to the remote station with no
success. The failure is not immediate and the Loggernet LogTool may show a “No
Carrier Detected” error.
Solution: It is possible that the base modem has lost its configuration. Resend the
configuration as shown in Section 2.2 of this manual and attempt communications
again.
Problem: I am using Iridium to communicate through the CS I/O port on my
datalogger. Whenever I try connecting with the datalogger LoggerNet reports that
communication with the station has failed. This message takes several seconds to
appear.
Solution: You may have connected your SC932A device backwards at the remote
station. When you install the SC932A it is imperative to make sure that the device is
connected in the proper way. Follow the label on the device for the proper
connections.