Exfo FVA-3150 Variable Attenuator User Manual download pdf (Page 45)

Operating Your Variable Attenuator

Variable Attenuator 39

Performing an Attenuation Routine

 Switch to –11 dB attenuation for 10 seconds (step 1)

 Switch to –12 dB attenuation for 10 seconds (step 2)

 Switch to –13 dB attenuation for 10 seconds (step 3), and

 Return to the initial attenuation state (-10 dB) for 10 seconds (step 0)

and repeat the routine until you stop it

To program the attenuation routine:

1. Press the Program button.

2. Press ENTER. The first digit will start flashing. Use the up/down arrows

to change the flashing digit and the left/right arrows to activate the next

digit.

Hours

Seconds

Minutes

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 114 115

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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Exfo FVA-3150 Variable Attenuator User Manual Page 45

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