Arcadian Networks Inc. AE11 Benutzerhandbuch

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V487i WMU User’s Guide 
5 P
ROBLEM 
T
ROUBLESHOOTING
 
If you encounter problems with your modem, try the following 
steps. 
Check for damage to the external modem casing during 
shipping or installation. If you see visible damage, the 
modem may need replacement. 
Verify that the 9.5Volt to 29V modem power supply jack is 
connected to the modem POWER connector on the Left 
side of the modem, and that the modem power supply is 
connected to a known-good AC power outlet. 
Verify that the RF coaxial cable is connected properly to 
the modem N-type connector. 
Verify that the PC LAN LED is illuminated and that the LAN 
cable is connected to a working Ethernet network port on 
the PC. 
Following are further steps you can take to identify and 
correct modem problems.  
 
Problem Description 
Possible Cause 
Potential 
Resolutions 
The RS232 does not 
connected to the  PC  
•  The DC plug 
may not be 
installed 
correctly. 
 
• The 
power 
supply may be 
faulty. 
 
•  The serial port 
of the PC is not 
enabled 
1. Check the 
connection of the 
power supply. 
 
2. Test the power 
supply using 
another modem. 
3. Replace the 
power supply if 
necessary. 
4. check the serial 
port configuration 
on the PC