AR 10051217, Operating And Service Manual

Page: 16 / 90

Model 2000S1G2z8
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2.8.3 Switch Breakout Board (A67) .............................................................................. 29
2.9 Fault Definition .................................................................................................... 32
2.9.1 No-Fault Control Actions ..................................................................................... 36
2.10 Remote Control Interfaces .................................................................................... 37
2.12.1 GPIB (IEEE-488) Communications ..................................................................... 37
2.12.2 RS-232 Communications ..................................................................................... 37
2.12.3 Fiber-Optic Serial Communications ..................................................................... 38
2.12.4 USB Communications .......................................................................................... 38
2.12.5 Ethernet Communications .................................................................................... 39
2.13 Remote Commands .............................................................................................. 39
2.13.1 Power On/Off ....................................................................................................... 40
2.13.2 RF On / Off .......................................................................................................... 40
2.13.3 RF Gain Adjust ..................................................................................................... 40
2.13.4 RF Gain Query ..................................................................................................... 40
2.13.5 Power Indicator Frequency .................................................................................. 41
2.13.6 VSWR Limit Selection ......................................................................................... 41
2.13.7 ALC Mode ............................................................................................................ 42
2.13.8 ALC Detector Gain Adjust ................................................................................... 42
2.13.9 ALC Threshold Level Adjust ............................................................................... 42
2.13.10 ALC Response Setting Adjust .............................................................................. 43
2.13.11 Identity Query ...................................................................................................... 43
2.13.12 IO Board Firmware Revision Query .................................................................... 43
2.13.13 Machine State Query ............................................................................................ 44
2.13.14 Amplifier State Query .......................................................................................... 44
2.13.15 Forward Power Query .......................................................................................... 46
2.13.16 Reverse Power Query ........................................................................................... 46
2.13.17 Operating Hours (RF ON) Query ......................................................................... 46
2.13.18 Operating Hours (Power ON) Query .................................................................... 46
2.13.19 Faults Query ......................................................................................................... 47
2.13.20 Reset Faults .......................................................................................................... 47
2.13.21 Read Fault Log ..................................................................................................... 47
2.13.22 Read Fault Log Count .......................................................................................... 48
2.13.23 Clear Fault Log ..................................................................................................... 48
2.13.24 Remote Operating Timeout (ROPTO) ................................................................. 48
2.13.25 ALC Board Firmware Query ................................................................................ 49
2.13.26 SBB (Piggyback) Firmware Query ...................................................................... 49
2.13.27 SBB (Optical) Firmware Query ........................................................................... 49
2.13.28 System Serial Number Query ............................................................................... 50
3. THEORY OF OPERATION ............................................................................. 51
3.1 Introduction .......................................................................................................... 51
3.2 RF Amplifier Operation ....................................................................................... 51
3.2.1 A1 Pre-Amp ......................................................................................................... 51
3.2.2 A3, A5-A6, A9-A16, and A25-A56 Quad Amp, High Power ............................. 52
3.2.3 A4 2-Way Splitter ................................................................................................ 52
3.2.4 A7, A8, A17-A24 Four-Way Splitter ................................................................... 52
3.2.5 A57-A60 8-Way Combiner .................................................................................. 52
3.2.6 A61 Four-Way Combiner ..................................................................................... 52
3.2.7 A62 Dual Directional Coupler ............................................................................. 53
3.3 Power Supplies (PS1 through PS9) ...................................................................... 53
3.4 Control System ..................................................................................................... 53
3.4.1 A64A2, A65, A66, A67 and A68 Control/Fault Boards ...................................... 53
3.4.2 A63 ALC Board (Schematic 10051819,10051526) ............................................. 54