Exfo FVA-3150 Variable Attenuator Manuel d'utilisateur Page 26
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Setting Up Your Variable Attenuator
20 FVA-3150
Selecting the Attenuation
Selecting the Attenuation
The attenuation can be set using two methods:
By using the up and down arrows buttons, the attenuation is modified
one step (up or down) at a time.
By using the Attenuation button, you can quickly and precisely set the
attenuation to a specific value
The available step sizes are: 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, and
50 dB.
Note: Selecting a larger step size allows for faster attenuation scanning.
To change the step size:
1. Press the Setup button.
2. Press the left/right arrows until STEP is displayed.
3. Press ENTER. The current step size will start flashing.
4. Using the up/down arrows, select one of the available step sizes.
5. Press ENTER.
6. To exit the Setup menu, press the Setup button.
- FVA-3150 1
- Contents 3
- Certification Information 5
- DECLARATION OF CONFORMITY 6
- 1 Introducing the FVA-3150 7
- Front Panel 8
- Back Panel 9
- Available Models 10
- Typical Applications 10
- IMPORTANT 11
- 2 Safety Information 13
- Variable Attenuator 9 15
- 10 FVA-3150 16
- Electrical Safety Information 16
- Equipment Ratings 16
- Operation 16
- Storage 16
- 3 Getting Started With Your 17
- Variable Attenuator 17
- 12 FVA-3150 18
- Variable Attenuator 13 19
- 4 Setting Up Your Variable 21
- Attenuator 21
- Locking Control Key Access 22
- Variable Attenuator 17 23
- 18 FVA-3150 24
- Variable Attenuator 19 25
- Selecting the Attenuation 26
- 22 FVA-3150 28
- Reference attenuation mode 30
- Variable Attenuator 25 31
- 26 FVA-3150 32
- Variable Attenuator 27 33
- Current offset value for 33
- 28 FVA-3150 34
- Variable Attenuator 29 35
- Relative attenuation 35
- Absolute attenuation 35
- 30 FVA-3150 36
- Variable Attenuator 31 37
- 32 FVA-3150 38
- Variable Attenuator 33 39
- Configuration number 39
- 36 FVA-3150 42
- Variable Attenuator 39 45
- 40 FVA-3150 46
- Variable Attenuator 41 47
- 42 FVA-3150 48
- Variable Attenuator 43 49
- Operating the Shutter 50
- 6 Controlling Your Variable 51
- Attenuator Remotely 51
- 46 FVA-3150 52
- Variable Attenuator 47 53
- GPIB Setting 53
- GPIB address 53
- Communication Parameters 54
- Variable Attenuator 49 55
- Command Structure 57
- Error Messages 58
- Description Probable Cause 59
- RS-232 Connector Pinout 60
- 7 Maintenance 61
- Recalibrating the Unit 65
- Recycling and Disposal 66
- 8 Troubleshooting 67
- Transportation 68
- Liability 70
- Service and Repairs 72
- Variable Attenuator 67 73
- Technical Specifications 76
- B Remote Control Commands 77
- 72 FVA-3150 78
- IEEE 488.2 Required Commands 78
- 76 FVA-3150 82
- Command Function 83
- 78 FVA-3150 84
- Command Tree 85
- ATTenuation 87
- Example ATT –15.350 DB 88
- ATTenuation? 89
- 84 FVA-3150 90
- Variable Attenuator 85 91
- DISPlay:DIMMer 92
- DISPlay:DIMMer? 92
- Variable Attenuator 87 93
- INPut:ATTenuation 94
- Example INP:ATT -15.350 DB 95
- INPut:ATTenuation? 96
- INPut:OFFSet 97
- INPut:OFFSet:DISPlay 97
- INPut:OFFSet? 98
- INPut:STEP 98
- INPut:STEP? 99
- INPut:STEP:CATAlog? 99
- INPut:WAVElength 100
- INPut:WAVElength? 100
- OUTPut:APMode 101
- OUTPut:APMode? 101
- OUTPut[:STATe] 102
- OUTPut[:STATe]? 102
- PROGram:SELected:ATTenuation 103
- PROGram:SELected:DELAy 103
- PROGram:SELected:DURAtion 104
- PROGram:SELected:STATe 104
- PROGram:SELected:STATe? 105
- PROGram:SELected:STEP 105
- WaVeLength 106
- WaVeLength? 106
- SYSTem:ERRor? 107
- SYSTem:VERSion? 107
- Variable Attenuator 103 109
- Variable Attenuator 105 111
- ₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩ 113
- MARKING REQUIREMENTS 114
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