
MAINTENANCE GUIDE
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Antenna Control Unit Maintenance Guide
10000025991 | Revision 2 | November 2021 | © Radio Frequency Systems 2021
2
SUMMARY
Caution .................................................................................................................................................................................3
1. Scope ................................................................................................................................................................................3
2. Requirements .................................................................................................................................................................3
3. Maintaining an ACU Device ...........................................................................................................................................5
3.1: Flowchart of the Operations .................................................................................................................................5
3.2: Replacing an ACU on-site ......................................................................................................................................6
3.2.1: Replacing an ACU that belongs to the ACU-A20 Family.................................................................................7
3.2.2: Replacing an ACU that does NOT belong to the ACU-A20 Family ................................................................8
3.3.1: Connecting the NEM to an ACU device ............................................................................................................9
3.3.2: Configuring the ACU device ...............................................................................................................................9
3.3.2.1: Preparation Step ..............................................................................................................................................9
3.3.2.2: Loading the Antenna Configuration Files to the ACU Device ................................................................. 10
3.3.2.3: Loading the Antenna Firmware Files to the ACU Device ......................................................................... 10
3.3.3: Calibrating the RET .......................................................................................................................................... 10
3.3.4: Checking the Tilt Operation ............................................................................................................................ 10
4. FAQ ................................................................................................................................................................................ 10