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Configuring the Hardware
Using the Attenuator
Setting Up the Hardware Setting Up the Attenuation
Example, Setting the Calibration
Automatic Sweep
Configuring the Hardware Setting Up the Software
Example, Setting a Return Loss
Setting the Gpib Address
Selecting the Shutter State at Power On
Selecting the Through-Power Mode
Setting the Display Brightness
Selecting the Setting used at Power-On
Some Notes about Programming and Syntax Diagram
Units Command Summary Common Commands
Conventions
STATus Commands 114
DISPlay Commands 104
INPut Commands 106
OUTPut Commands 110
Operating and Storage Environment 148
User Calibration Commands 123
Switching on the Attenuator 149
Temperature 148 Humidity Instrument Positioning and Cooling
Gpib Interface 150
Definition of Terms 165 Specifications 167
Other Specifications 171 Declaration of Conformity 172
Monitor Output 149 Optical Output 150
Preserving Connectors 256
Polarization Dependent Loss PDL Optional
Polarization Dependant Loss Test Mueller method 192
How to clean bare fiber adapters 261
How to clean connectors 258
How to clean connector adapters 259
How to clean connector interfaces 260
Additional Cleaning Information 268
How to clean instruments with a recessed lens inter
How to clean optical devices which are sensitive to me
How to clean metal filters or attenuator gratings
276
Table of Contents
List of Figures
Figure D-6
List of Tables
List of Tables
Getting Started
Getting Started
Attenuator Keys
Using the Attenuator
Using the Modify Keys
Using the Attenuator
Making an Attenuation Sweep
Making an Automatic Sweep
Making an Attenuation Sweep
Manual Sweep
Manual Sweep
Parameters for an Automatic Sweep
Using your Attenuator as a Variable Back
Using your Attenuator as a Variable Back Reflector
Reflector
Using the Through-Power Mode
Using the Through-Power Mode
Selecting the Wavelength Calibration and Its Function
Selecting the Wavelength Calibration and Its Function
Using the Attenuator
Using the Attenuator
Setting Up the Hardware
Setting Up the Hardware
Attenuation Factor on the Display
Setting Up the Attenuation
Setting Up the Attenuation
Entering the Attenuation Factor
Editing the Calibration Factor
Resetting the Attenuation Factor
Entering a Calibration Factor
Calibration Factor on the Display
Entering the Wavelength
Wavelength on the Display
Resetting the Wavelength
Example, Setting the Calibration
Example, Setting the Calibration
Hardware Configuration for Attenuation Example a
Power of the source
Hardware Configuration for Attenuation Example B
Warmup. The multimeter needs around 20 minutes to warmup.
Example, Setting the Calibration
Making an Attenuation Sweep
Making an Attenuation Sweep
Configuring the Hardware
Configuring the Hardware
Setting Up an Automatic Sweep
Automatic Sweep
Automatic Sweep
Starting the Setting Up
Editing the Parameters
Selecting the Automatic Sweep Application
Executing the Automatic Sweep
Resetting the Parameters
Running the Automatic Sweep
Setting Up a Manual Sweep
Repeating the Sweep
Restarting the Sweep
Editing the Stop Parameter
Running the Manual Sweep
Executing the Manual Sweep
Example, an Automatic Attenuation Sweep
Resetting, or store their setting for later recall
Example, an Automatic Attenuation Sweep
Changing the Attenuation in a Manual Sweep
Example, an Automatic Attenuation Sweep
Example, an Automatic Attenuation Sweep
Using your Attenuator as a Variable Back Reflector
Using your Attenuator as a Variable Back Reflector
Using your Attenuator as a Variable Back Reflector
Setting Up the Software
Editing the Setup
Setting Up the Software
Editing the Value for the Reference Return Loss
Executing the Back Reflector Application
Example, Setting a Return Loss
Example, Setting a Return Loss
Hardware Configuration for Variable Return Loss
Example, Setting a Return Loss
Setting Up the System
Setting Up the System
Setting the Gpib Address
Resetting the Gpib Address
Setting the Gpib Address
Setting the Function of the Wavelength Calibration
Resetting the Function of the Wavelength Calibration Data
Lambdcal Indicator on the Display
Usercal Indicator on the Display
Resetting the Wavelength Calibration Data Set
If you are using the instrument in an environment where
Temperature changes, you should not use the user wavelength
Selecting the Through-Power Mode
Selecting the Through-Power Mode
Display in Through-Power Mode
Resetting the Display Brightness
Setting the Display Brightness
Deselecting the Through-Power Mode
Resetting the Through-Power Mode
Locking Out ENB/DIS
Selecting the Setting used at Power-On
Resetting the Power-On Setting
Selecting the Setting used at Power-On
Selecting the Shutter State at Power On
Selecting the Shutter State at Power On
Resetting the ENB/DIS Lock Out
Resetting the Shutter State at Power On
Setting the Display Resolution
Resetting the Display Resolution
Setting the Display Resolution
Storing and Recalling Settings
Storing and Recalling Settings
Recalling a User Setting
Storing the Setting
Recalling a Setting
Resetting the Instrument
Recalling a Setting
Programming the Attenuator
Programming Attenuator
Gpib Interface
Gpib Interface
AH1
Gpib Capabilities Mnemonic Function
Returning the Instrument to Local Control
How the Attenuator Receives and Transmits Messages
How the Input Queue Works
How the Attenuator Receives and Transmits Messages
Error Queue
Clearing the Input Queue
Output Queue
Some Notes about Programming and Syntax Diagram Conventions
Some Notes about Programming and Syntax Diagram Conventions
Short Form and Long Form
Wsp
Command and Query Syntax
String
Value
Remote Commands
Remote Commands
Units
Command Summary
Units and Allowed Mnemonics Default
Common Command Summary
Command List
Command Summary
ValueMINDE DB
Value 32768 32767
Common Commands
Common Commands
Common Status Information
Common Status Registers
SRQ, The Service Request
Definition
Syntax
Example
Event Status Enable Register
Bits Mnemonics BIT Value
Standard Event Status Register
OPC
RCL
SAV
Reset State Default Setting Parameter Reset Value
SRE
Service Request Enable Register
Status Byte Register
No T EBit 6 cannot be masked
Self Test Results
TST?
DISPlayBRIGhtness?
DISPlay Commands
DISPlay Commands
DISPlayBRIGhtness
DISPlayENABle
DISPlayENABle?
Description
INPutATTenuation?
INPut Commands
INPut Commands
INPutATTenuation
INPutLCMode
INPutLCMode?
INPutOFFSet
INPutOFFSetDISPlay
INPutOFFSet?
INPutWAVelength
OUTPutAPMode
OUTPut Commands
OUTPut Commands
INPutWAVelength?
OUTPutAPMode?
Using any of the INPutATTenuation commands or queries, or
Any of the INPutOFFSet commands or queries, switches
Absolute power mode off automatically
OUTPutPOWer
OUTPutPOWer?
OUTPutSTATe
OUTPutSTATe?
STATus Commands
STATus Commands
OUTPutSTATeAPOWeron
OUTPutSTATeAPOWeron?
STATus Commands
Status Registers
STATusOPERationCONDition?
STATusOPERationENABle
STATusOPERationENABle?
STATusOPERationEVENt?
STATusOPERationNTRansition
STATusOPERationNTRansition?
STATusOPERationPTRansition
STATusQUEStionableENABle
STATusOPERationPTRansition?
STATusQUEStionableCONDition?
STATusQUEStionableENABle?
STATusQUEStionableEVENt?
STATusQUEStionableNTRansition
STATusQUEStionableNTRansition?
STATusQUEStionablePTRansition
STATusQUEStionablePTRansition?
SYSTem Commands
SYSTem Commands
STATusPRESet
SYSTemERRor?
User Calibration Commands
User Calibration Commands
Entering the User Calibration Data
UCALibrationSTARt
Power = -Power
UCALibrationSTATe
UCALibrationSTARt?
UCALibrationSTATe?
UCALibrationSTOP
UCALibrationVALue
UCALibrationVALue?
128
Programming Examples
Programming Examples
Example 1 Checking Communication
Example 1 Checking Communication
Function
Listing
Example 2 Status Registers and Queues
Example 2 Status Registers and Queues
133
134
Example 3 Measuring and Including the Insertion Loss
Setting Up the Equipment
Example 3 Measuring and Including the Insertion Loss
Requirements
Include the attenuator
137
138
Example 4 Running an Attenuation Sweep
Example 4 Running an Attenuation Sweep
140
Installation
Installation
Safety Considerations
Safety Considerations
Initial Inspection
AC Line Power Supply Requirements
Line Power Cable
AC Line Power Supply Requirements
Figure A-2 Rear Panel Markings
Replacing the Fuse
Replacing the Battery
Figure A-3 Releasing the Fuse Holder
Instrument Positioning and Cooling
Temperature
Operating and Storage Environment
Humidity
Switching on the Attenuator
Switching on the Attenuator
Monitor Output
Optical Output
Disabling the Optical Output
Optical Output
Figure A-6
Connector
Claims and Repackaging
Claims and Repackaging
Gpib Logic Levels
Return Shipments to Agilent Technologies
Claims and Repackaging
154
Accessories
Accessories
Table B-1 Mainframe Description Model No
Instrument and Options
Gpib Cables and Adapters
Instrument and Options
Connector Interfaces and Other Accessories
Straight Contact Connector
Connector Interfaces and Other Accessories
Accessories
Figure B-2 Angled Contact Connector Configuration
Option 201, Angled Contact Connector
Table B-3 Connector Interface Description AgilentModel No
162
Specifications
Specifications
Definition of Terms
Definition of Terms
Polarization mode dispersion
Repeatability
Return loss
Specifications
Specifications
Monitor Output typ
Table C-2 Monitor Output Options
Supplementary Performance Characteristics
Operating Modes
Table C-3 Multimode Options Wavelength Range
Environmental
General
Acoustic Noise Emission Geräuschemissionswerte
Other Specifications
Power
Other Specifications
Declaration of Conformity
Declaration of Conformity
Performance Tests
Performance Tests
Equipment Required
Equipment Required
176
Test Record
Instrument Specification
Test Record
Test Failure
Performance Test
Performance Test
Specifications
Total Insertion Loss Test
Typ
Figure D-3 Total Insertion Loss Test Setup 1, Option
Figure D-2 Total Insertion Loss Test Setup 1, Options 201
Figure D-5 Total Insertion Loss Test Setup 2, Options 201
II. Linearity/Attenuation Accuracy Test
Specifications Agilent 8156A
Measurement to prevent changes of state of polarization
To 0.00 dB
III. Attenuation Repeatability Test
IV. Return Loss Test Options 100, 101,
Figure D-7 Return Loss Test Setup 1, Options 100, 101
No T E
Options 201
Figure D-8 Return Loss Test Setup 2, Options 100
Figure D-10 Return Loss Test Setup 1, Options 201
Monitor output is terminated
Figure D-11 Return Loss Test Setup 2, Option
Figure D-12 Return Loss Test Setup 2, Option
V. Polarization Dependent Loss PDL Optional
Polarization Dependent Loss PDL Optional
Table D-2 Equipment for the PDL test
Polarization Dependant Loss Test Mueller method
Figure D-13 PDL Test Setup 1 Reference Measurement
Until these are finished
Isolator must not move during and between all measurements
Set plates for Linear Horizontal polarization
Polarization Dependent Loss PDL Optional
Measure the Reference Power
Linear vertical Linear diagonal RH circular
Polarization
Polarization Dependent Loss PDL Optional
Head must not move until the measurements are finished
Set the 8156A Attenuator DUT to 0dB using the modify keys
Polarization Dependent Loss PDL Optional
Table D-3 Performance Test Agilent 8156A
Performance Test for the Agilent 8156A
Polarization Dependent Loss PDL Optional
Result
Performance Test for the Agilent 8156A Option
204
01dB + 0.01dB
206
207
208
Polarization Dependent Loss PDL Optional
210
211
Input 40dB
213
214
215
Polarization Dependent Loss PDL Optional
217
218
219
220
10.9dB
222
Polarization Dependent Loss PDL Optional
224
225
Input 55dB
227
228
229
Polarization Dependent Loss PDL Optional
231
232
233
234
235
236
Polarization Dependent Loss PDL Optional
238
239
01dB + 0.01dB 240
Special Notes
Test Facility
Polarization Dependent Loss Test
Mueller Coefficients
Minimum and maximum transmission
Option Wavelength 1550nm nominal
Polarization Dependent Loss PDL Optional
Cleaning Information
Cleaning Instructions for this Instrument
Cleaning Information
Safety Precautions
Why is it important to clean optical devices ?
Safety Precautions
What do I need for proper cleaning?
Standard Cleaning Equipment
What do I need for proper cleaning?
Dust and shutter caps
Isopropyl alcohol
Cotton swabs
Pipe cleaner
Soft tissues
Compressed air
Additional Cleaning Equipment
Microscope with a magnification range about 50X up to
Ultrasonic bath
Warm water and liquid soap
Premoistened cleaning wipes
Polymer film
Infrared Sensor Card
Dust Caps and Shutter Caps
Preserving Connectors
Preserving Connectors
Making Connections
Light dirt
Cleaning Instrument Housings
Which Cleaning Procedure should I use ?
Cleaning Instrument Housings
How to clean connectors
How to clean connectors
Preferred Procedure
Procedure for Stubborn Dirt
How to clean connector adapters
An Alternative Procedure
How to clean connector adapters
How to clean connector interfaces
How to clean connector interfaces
How to clean bare fiber adapters
How to clean bare fiber adapters
How to clean lenses
How to clean lenses
How to clean instruments with a fixed connector interface
How to clean instruments with a fixed connector interface
System
How to clean instruments with an optical glass plate
How to clean instruments with a physical contact interface
How to clean instruments with an optical glass plate
Lens interface
How to clean instruments with a recessed
How to clean instruments with a recessed lens interface
Agilent Technologies 81633A and 81634A Power Sensors do not
Preferred Procedure
Alternative Procedure
How to clean metal filters or attenuator gratings
Additional Cleaning Information
How to clean metal filters or attenuator gratings
How to clean bare fiber ends
How to clean large area lenses and mirrors
Additional Cleaning Information
Remains
Alternative Procedure a
Damage your device
It, because they can scratch and damage your device
Other Cleaning Hints
Other Cleaning Hints
Alternative Procedure B
Lens cleaning papers
Cleaning the housing and the mainframe
Error messages
Error Messages
Bits Mnemonics Value
Display Messages
Display Messages
Hexadecimal
Gpib Messages
Parameter not allowed
Command header error
Header separator error
Numeric data error
Exponent too large
Suffix error
Character data error
Invalid character in number
Character data too long
String data error
Block data error
Invalid character data
Parameter error
Execution Errors
Execution error
Settings lost due to rtl
System error
Hardware error
Device-Specific Errors
Device-specific error
Save/recall memory lost
Configuration memory lost
Query Errors
Query error
201
Instrument Specific Errors
Query Deadlocked
Query Unterminated after indefinite response
284
Index
Symbols
HP-IB
Lockout
Resolut
Thrupowr