Neptune Technology R450, Installation And Maintenance Manual

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Verifying Backhaul Modem Connectivity
Cal Amp LandCell Modem
To verify connectivity and signal levels, complete the following.
1. Locate the RSSI LED light on the modem.
2. Identify how the light is lit.
l
Solid = indicates signal strength is strong
l
Blinking = indicates signal strength is medium
l
Off = indicates signal strength is poor or no signal at all
Figure 71 – CalAmp Modem with RSSI LED
3. If the signal strength is poor or if there is no signal at all, there is
something wrong with the antenna, or it is possible that the local
cell service is not working.
For more detailed information on your wireless connection status,
connect to the modems configuration application. Refer to
"Manually Configuring the GPRS Modem" on page 32.
Ethernet
If Ethernet backhaul is used, then check the status lights on the CPU
board. Refer to "Testing the Connections" on page 29.
Wi-Fi Modem
Refer to the user’s guide for the Wi-Fi modem.
Verifying Radio Functionality Using an MIU
To verify that the system is functioning properly, complete the
following steps.
80 R450 Data Collector Installation and Maintenance Guide
Chapter 6: Troubleshooting