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Antenna Control Unit
Gateway
(Not supplied)
Antenna TX + 48V Power Connect
Antenna RX Connect
Antenna RX
Disconnect
Antenna TX
Connect
c. Connect RX coaxial cable to the antenna, keep RX coaxial cable and ACU disconnected, and use the multimeter to
measure RX coaxial cable near to the ACU. The normal voltage reading is about 5V. If the 5V voltage is abnormal, check
the ACU mainboard.
d. If the voltages of Tx and Rx coaxial cable are normal, but the status still shows Init or COMM ERROR, check the ACU
mainboard or the antenna mainboard. Mainboard issues need to contact the manufacturer with help.
Appendix 3
Troubleshooting Guide