HP 83487A User Manual

User’s Guide

HP 83487A Optical/Electrical Plug-In Module

HP Part No. 83487-90018 Printed in USA June 1999

Hewlett-Packard Company Lightwave Operations 1400 Fountaingrove Parkway Santa Rosa, CA 95403-1799, USA (707) 577-1400

Notice.

The information contained in this document is subject to change without notice. Companies, names, and data used in examples herein are fictitious unless otherwise noted. Hewlett-Packard makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. HewlettPackard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

Restricted Rights Legend.

Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 for DOD agencies, and subparagraphs (c) (1) and (c) (2) of the Commercial Computer Software Restricted Rights clause at FAR 52.227-19 for other agencies.

Warranty.

This Hewlett-Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by Hewlett-Packard. Buyer shall prepay shipping charges to Hewlett-Packard and Hewlett-Packard shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to HewlettPackard from another country.

Hewlett-Packard warrants that its software and firmware designated by Hewlett-Packard for use with an instrument will execute its programming instructions when properly installed on that instrument. Hewlett-Packard does not warrant that the operation of the instrument, or software, or firmware will be uninterrupted or error-free.

Limitation of Warranty.

The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyersupplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance.

No other warranty is expressed or implied. Hewlett-Packard specifically

disclaims the implied warranties of merchantability and fitness for a particular purpose.

Exclusive Remedies.

The remedies provided herein are buyer's sole and exclusive remedies. Hewlett-Packard shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

Safety Symbols.

CAUTION

The hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in damage to or destruction of the product. Do not proceed beyond a caution sign until the indicated conditions are fully understood and met.

WAR NI NG

The hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in injury or loss of life. Do not proceed beyond a warning sign until the indicated conditions are fully understood and met.

sign denotes a

caution

warning

sign denotes a

The instruction manual symbol. The product is marked with this warning symbol when it is necessary for the user to refer to the instructions in the manual.

The laser radiation symbol. This warning symbol is marked on products which have a laser output.

The AC symbol is used to indicate the required nature of the line module input power.

The ON symbols are

used to mark the positions of the instrument power line switch.

The OFF symbols

❍

are used to mark the positions of the instrument power line switch.

The CE mark is a registered trademark of the European Community.

The CSA mark is a registered trademark of the Canadian Standards Association.

The C-Tick mark is a registered trademark of the Australian Spectrum Management Agency.

This text denotes the

ISM1-A

instrument is an Industrial Scientific and Medical Group 1 Class A product.

The HP 83487A—At a Glance

The HP 83487A optical/electrical plug-in module is one of several plug-in modules available for the HP 83480A, 54750A mainframes. The main features of the HP 83487A are:

• Integrated, calibrated optical channel.

• 2.85 GHz optical channel bandwidth and user selectable 12.4 or 20 GHz electrical channel bandwidth.

• 750 nm to 860 nm wavelength range.

• Optical channel has 1063/1250 Mb/s datacom filters.

• 62.5/125 µm (maximum) multimode, user selectable optical input connector option.

• Electrical measurement channel.

• Trigger channel input to the mainframe.

• 3.5 mm (m) connectors on the electrical measurement channel and trigger channel.

• One probe power connector.

• One auxiliary power connector.

NOTE

If you wish to use the HP 83487A optical plug-in module in an HP 54750A digitizing oscilloscope, a firmware upgrade must first be installed. Order the HP 83480K communications firmware kit and follow the installation instructions.

The purpose of the plug-in module is to provide measurement channels, including sampling, for the mainframe. The plug-in module scales the input signal, sets the bandwidth of the system, and allows the offset to be adjusted so the signal can be viewed. The output of the plug-in module is an analog signal that is applied to the ADCs on the acquisition boards inside the mainframe. The plug-in module also provides a trigger signal input to the time base/trigger board inside the mainframe.

For HP-IB programming information, refer to the

grammer’s Guide

supplied with the mainframe.

HP 83480A, 54750A Pro-

iii

Measurement Accuracy

To ensure that you obtain the specified accuracy, you must perform a plug-in module vertical calibration. The calibration must also be performed when you move a plug-in module from one slot to another, or from one mainframe to another. Refer to Chapter 3, “Calibration Overview” for information on performing a plug-in module vertical calibration.

CAUTION

The HP 83487A optical/electrical plug-in module input circuitry can be damaged when the optical channel or ±2 V + peak ac (+16 dBm) on the electrical channel. To prevent input damage, this specified level must not be exceeded.

Measurement accuracy—it’s up to you!

Fiber-optic connectors are easily damaged when connected to dirty or damaged cables and accessories. The HP 83487A optical/electrical plug-in module’s front-panel INPUT connector is no exception. When you use improper cleaning and handling techniques, you risk expensive instrument repairs, damaged cables, and compromised measurements.

Before you connect any fiber-optic cable to the HP 83487A optical/electrical plug-in module, refer to “Cleaning Connections for Accurate Measurements” on page 5-14.

total

input power levels exceed +10 dBm (10 mW) on the

General Safety Considerations

This product has been designed and tested in accordance with IEC Publication 1010, Safety Requirements for Electronic Measuring Apparatus, and has been supplied in a safe condition. The instruction documentation contains information and warnings which must be followed by the user to ensure safe operation and to maintain the product in a safe condition.

WARNING

CAUTION

There are many points in the instrument which can, if contacted, cause personal injury. Be extremely careful. Any adjustments or service procedures that require operation of the instrument with protective covers removed should be performed only by trained service personnel.

If this instrument is not used as specified, the protection provided by the equipment could be impaired. This instrument must be used in a normal condition (in which all means for protection are intact) only.

There are many points in the system which can, if contacted, cause personal injury. Be extremely careful. Any adjustments or service procedures that require operation of the system with protective covers removed should be performed only by Hewlett-Packard personnel.

NO OPERATOR SERVICEABLE PARTS INSIDE. Refer servicing to qualified Hewlett-Packard personnel. To prevent electrical shock, do not remove covers.

Before this instrument is switched on,

has been adapted to the voltage of the ac power source. Failure to set the ac power input to the correct voltage could cause damage to the instrument when the ac power cable is plugged in.

make sure its primary power circuitry

CAUTION

Electrostatic discharge (ESD) on or near input connectors can damage circuits inside the instrument. Repair of damage due to misuse is warranty. Before connecting any cable to the electrical input, momentarily short the center and outer conductors of the cable together. Personnel should be properly grounded, and should touch the frame of the instrument before touching any connector.

not

covered under

General Safety Considerations

The HP 83487A—At a Glance iii

1 Getting Started

The HP 83487A Optical/Electrical Plug-In Module 1-3 Options and Accessories 1-7 Menu and Key Conventions 1-9 Step 1. Inspect the Shipment 1-10 Step 2. Install the Plug-in Module 1-11 Returning the Instrument for Service 1-12

2 Channel Setup Menu

Channel Setup Menu 2-2 Displaying the Channel Setup Menus 2-5

3 Calibration Overview

Factory Calibrations 3-4 User Calibrations—Optical and Electrical 3-7 Complete Calibration Summary 3-19

4 Specifications and Regulatory Information

Specifications 4-3 Characteristics 4-8 Declaration of Conformity 4-9

5 Reference

In Case of Difficulty 5-2 Measuring High Power Waveforms 5-6 Error Messages 5-10 Electrostatic Discharge Information 5-12 Cleaning Connections for Accurate Measurements 5-14 Hewlett-Packard Sales and Service Offices 5-25

Contents-1

Contents

Contents-2

Getting Started

This chapter gives a description of the plug-in module, lists options and accessories, explains menu and key conventions used, shows how to install your HP 83487A optical/electrical plug-in module, and gives information for returning the plug-in module for service.

Refer to Chapter 2, “Channel Setup Menu” for information on operating the plug-in module.

Refer to Chapter 3, “Calibration Overview” for calibration information.

Refer to Chapter 4, “Specifications and Regulatory Information” for information on operating conditions, such as temperature.

CAUTION

This product is designed for use in INSTALLATION CATEGORY II and POLLUTION DEGREE 2, per IEC 1010 and 664 respectively.

The input circuits can be damaged by electrostatic discharge (ESD). Therefore, avoid applying static discharges to the front-panel input connectors. Before connecting any coaxial cable to the connectors, momentarily short the center and outer conductors of the cable together. Avoid touching the frontpanel input connectors without first touching the frame of the instrument. Be sure that the instrument is properly earth-grounded to prevent buildup of static charge. Refer to “Electrostatic Discharge Information” on page 5-12.

1-2

Getting Started

The HP 83487A Optical/Electrical Plug-In Module

The HP 83487A optical/electrical plug-in module incorporates two measurement channels, one optical and one electrical. The electrical channel has two selectable bandwidth settings. In the lower bandwidth mode of 12.4 GHz, oscilloscope noise performance is excellent, while the 20 GHz mode allows greater fidelity for high speed signals. The calibrated, integrated optical channel has over 2.85 GHz bandwidth and allows easy, precise measurements of single-mode or multimode optical signals.

The integrated optical channel reduces electrical mismatch loss variation by eliminating signal distorting cables and connectors associated with the use of external receivers in order to accurately characterize optical waveforms. The optical channel is calibrated to provide both accurate display of the received optical waveform in optical power units and measurement of the signal’s average power. In addition, the User Cal feature provides for consistent accuracy at any wavelength between 750 nm and 860 nm using a source and power meter.

The HP 83487A optical/electrical plug-in module also is a calibrated reference receiver that is measured to conform to specifications for Fibre Channel (FC) 1063 and Gigabit Ethernet for transmitter compliance testing. By pressing a front-panel key or issuing an HP-IB command, a filter is inserted or removed from the measurement channel by a very repeatable HP microwave switch. The switch removes the potential variability and the time wasted by manually inserting and removing the filter, and maximizes measurement repeatability.

The electrical measurement channel may be used to perform measurements on tributary electrical signals, to evaluate receiver performance in transceiver testing, for measurements with HP’s wide range of external optical receivers, or for general purpose measurements.

1-3

Getting Started

The HP 83487A Optical/Electrical Plug-In Module

The HP 83487A optical/electrical plug-in module provides:

• 2.85 GHz, integrated, calibrated optical channel with sensitivity to below –17 dBm

• 12.4 GHz and 20 GHz electrical channel

• Trigger channel input to the mainframe

• Switchable reference filters for transceiver compliance testing

• Compliance testing at Fibre Channel 1063 and Gigabit Ethernet 1250 rates

• Measurement capability for single-mode or multimode optical signals

1-4

Getting Started

The HP 83487A Optical/Electrical Plug-In Module

Front panel of the plug-in module

The plug-in module takes up two of the four mainframe slots. The optical channel provides calibrated measurement of optical waveforms in power units. The electrical channel provides calibrated measurement of electrical signals in volts. Bandwidths are selectable on both channels to optimize sensitivity and bandwidth.

The front panel of the plug-in module has two channel inputs and an external trigger input. The front panel also has a series probes, an each channel that displays the softkey menu. The softkey menu allows you to access the channel setup features of the plug-in module.

The front-power probe calibration with HP 54700 series probes. The front-panel nector provides only power to HP 54700 series probes for use as a trigger input. Probe calibration and scaling are not required for a trigger input.

Aux Power

Probe Power

connector for general purpose use, and a key for

connector allows automatic channel scaling and

Probe Power

connector for HP 54700-

Aux Power

con-

Front panel of the plug-in module.

1-5

Getting Started

The HP 83487A Optical/Electrical Plug-In Module

Trigger

The external trigger level range for this plug-in module is ±1 V. The trigger source selection depends on the plug-in module location. For example, if the plug-in module is installed in slots 1 and 2, then the trigger source is listed as trigger 2. If it is installed in slots 3 and 4, then the trigger source is listed as trigger 4.

CAUTION

The maximum safe input voltage is ±2 V + peak ac (+16 dBm).

1-6

Options and Accessories

Getting Started

Options and Accessories

Options

Optional accessories

Option 0B1 Additional set of user documentation Option 0B0 Deletes the user documentation Option UK6 Measured performance data

Option 001 Latest version of operating firmware for the HP 83480A Option 002 Latest version of operating firmware for the HP 54750A Option 011 Diamond HMS-10/HP connector interface Option 012 FC/PC connector adapter Option 013 DIN connector adapter Option 014 ST connector adapter Option 015 Biconic connector adapter Option 017 SC connector adapter Option 041 1063 and 1250 Mb/s switchable internal filters

HP 10086A ECL terminator HP 11982A high-speed lightwave receiver HP 54006A 6 GHz divider probe HP 54008A 22 ns delay line HP 54118A 500 MHz to 18 GHz trigger HP 83430A lightwave digital source HP 83440B/C/D high-speed lightwave receiver HP 83446A/B lightwave clock and data receiver HP 83447A lightwave trigger receiver 83487-60006 FC/PC 5 dB (mm) 850 nm attenuator and patchcord 83487-60007 ST 5 dB (mm) 850 nm attenuator and patchcord 83487-60008 SC 5 dB (mm) 850 nm attenuator and patchcord

Connection devices

SMA (f-f) adapter, HP part number 1250-1158 APC 3.5 (f-f) adapter, HP part number 1250-1749 HP 81000FI FC/PC/SPC/APC connector interface HP 81000KI SC connector interface

1-7

Getting Started

Options and Accessories

HP 81000SI DIN 47256/4108.6 connector interface HP 81000VI ST connector interface HP 81000WI Biconic

1-8

Getting Started

Menu and Key Conventions

The keys labeled Trigger, Disk, and Run are all examples of front-panel keys. Some front-panel keys bring up menus on the right side of the display screen. These menus are called softkey menus.

Softkey menus contain functions not available directly by pressing the frontpanel keys. To activate a function on the softkey menu, press the unlabeled key immediately next to the annotation on the screen. The unlabeled keys next to the annotations on the display are called softkeys.

Additional functions are listed in blue type above and below some of the frontpanel keys. These functions are called shifted functions. To activate a shifted function, press the blue front-panel the desired function.

Throughout this manual front-panel keys are indicated as, for example,

base

. Softkeys are indicated as, for example, depend on the front-panel key pressed and which menu is selected. Shifted functions are indicated by the front-panel the Local function (above the

Shift, Local

A softkey with On and Off in its label can be used to turn the softkey’s function on or off. To turn the function on, press the softkey so that On is highlighted. To turn the function off, press the softkey so that Off softkey function will be indicated throughout this manual as, for example,

Te s t On

A softkey such as case, you could choose lighted, or choose choices softkey will be indicated throughout this manual as, for example,

Sweep Triggered Freerun Triggered

When some softkeys, such as surement will be made and the result will be provided. Some softkeys, such as

Offset

the general purpose knob located below the front-panel

Sweep Triggered Freerun

Triggered

Freerun

by pressing the softkey until

, require the entry of a numeric value. To enter or change the value, use

Shift

key and the front-panel key next to

Mask Align

Shift

key followed by, for example,

Stop/Single

by pressing the softkey until

Calibrate probe

front-panel key) and will be shown as

offers you a choice of functions. In this

, are pressed the first time, a mea-

. The softkeys displayed

Off

is highlighted. An On or

Freerun

Triggered

is highlighted. A

Measure

section.

Tim e-

is high-

1-9

Getting Started

Step 1. Inspect the Shipment

Verify that all system components ordered have arrived by comparing the shipping forms to the original purchase order. Inspect all shipping containers. The shipment includes:

• HP 83487A optical/electrical plug-in module with the ordered options and adapters.

• 5 dB optical attenuator and patch cord, 1 each

• APC 3.5 (f-f) adapter, HP part number 5061-5311, 2 each

• SMA 50Ω termination, HP part number 1810-0118, 2 each

If your shipment is damaged or incomplete, save the packing materials and notify both the shipping carrier and the nearest Hewlett-Packard Sales and Service office. HP will arrange for repair or replacement of damaged or incomplete shipments without waiting for a settlement from the transportation company. Notify the HP customer engineer of any problems.

Make sure that the serial number and options listed on the instrument’s rearpanel label match the serial number and options listed on the shipping document.

1-10

Step 2. Install the Plug-in Module

Getting Started

CAUTION

You do modules.

The plug-in module can be installed in slots 1 and 2 or 3 and 4 on the HP 83480A or HP 54750A mainframe. The plug-in module will it is installed in slots 2 and 3.

To make sure the analyzer meets all of the published specifications, there must be a good ground connection from the plug-in module to the mainframe. The RF connectors on the rear of the plug-in module are spring-loaded, so finger-tighten the knurled screw on the front panel of the plug-in module to make sure the plug-in is securely seated in the mainframe.

Do not use non-HP extender cables to operate the plug-in module outside of the mainframe. The plug-in module can be damaged by improper grounding when using extender cables.

not

need to turn off the mainframe to install or remove the plug-in

Note

If you wish to use the HP 83487A optical/electrical plug-in module in an HP 54750A digitizing oscilloscope, a firmware upgrade must first be installed. Order the HP 83480K communications firmware kit and follow the installation instructions.

not

function if

Note

Use of the HP 83487A requires that firmware revision A.06.0 or later be installed in the HP 83480A or HP 54750A mainframe.

1-11

Getting Started

Returning the Instrument for Service

The instructions in this section show you how to properly return the instrument for repair or calibration. Always call the HP Instrument Support Center first to initiate service This ensures that the repair (or calibration) can be properly tracked and that your instrument will be returned to you as quickly as possible. Call this number regardless of where you are located. Refer to “Hewlett-Packard Sales and

Service Offices” on page 5-25 for a list of service offices.

HP Instrument Support Center . . . . . . . . . . . . . . . . . . . . . . . . . .(800) 403-0801

If the instrument is still under warranty or is covered by an HP maintenance contract, it will be repaired under the terms of the warranty or contract (the warranty is at the front of this manual). If the instrument is no longer under warranty or is not covered by an HP maintenance plan, Hewlett-Packard will notify you of the cost of the repair after examining the unit.

When an instrument is returned to a Hewlett-Packard service office for servicing, it must be adequately packaged and have a complete description of the failure symptoms attached. When describing the failure, please be as specific as possible about the nature of the problem. Include copies of additional failure information (such as the instrument failure settings, data related to instrument failure, and error messages) along with the original cal data disks and the instrument being returned.

before

returning your instrument to a service office.

1-12

Getting Started

Returning the Instrument for Service

Preparing the instrument for shipping

Write a complete description of the failure and attach it to the instrument. Include any specific performance details related to the problem. The following information should be returned with the instrument.

• Type of service required.

• Date instrument was returned for repair.

• Description of the problem:

• Whether problem is constant or intermittent.

• Whether instrument is temperature-sensitive.

• Whether instrument is vibration-sensitive.

• Instrument settings required to reproduce the problem.

• Performance data.

• Company name and return address.

• Name and phone number of technical contact person.

• Model number of returned instrument.

• Full serial number of returned instrument.

• List of any accessories returned with instrument.

• The original cal data disks.

CAUTION

Cover all front or rear-panel connectors that were originally covered when you first received the instrument.

Cover electrical connectors to protect sensitive components from electrostatic damage. Cover optical connectors to protect them from damage due to physical contact or dust.

Instrument damage can result from using packaging materials other than the original materials. Never use styrene pellets as packaging material. They do not adequately cushion the instrument or prevent it from shifting in the carton. They may also cause instrument damage by generating static electricity.

Pack the instrument in the original shipping containers. Original materials are available through any Hewlett-Packard office. Or, use the following guidelines:

• Wrap the instrument in antistatic plastic to reduce the possibility of damage caused by electrostatic discharge.

• For instruments weighing less than 54 kg (120 lb), use a double-walled, corrugated cardboard carton of 159 kg (350 lb) test strength.

1-13

Getting Started

Returning the Instrument for Service

• The carton must be large enough to allow approximately 7 cm (3 inches) on all sides of the instrument for packing material, and strong enough to accommodate the weight of the instrument.

• Surround the equipment with approximately 7 cm (3 inches) of packing material, to protect the instrument and prevent it from moving in the carton. If packing foam is not available, the best alternative is S.D-240 Air Cap™ from Sealed Air Corporation (Commerce, California 90001). Air Cap looks like a plastic sheet filled with air bubbles. Use the pink (antistatic) Air Cap™ to reduce static electricity. Wrapping the instrument several times in this material will protect the instrument and prevent it from moving in the carton.

Seal the carton with strong nylon adhesive tape.

Mark the carton “FRAGILE, HANDLE WITH CARE”.

Retain copies of all shipping papers.

1-14

Channel Setup Menu 2-2 Displaying the Channel Setup Menus 2-5

Channel Setup Menu

This chapter describes the Channel Setup menu. A key tree and description of the available functions is included.

CAUTION

At the top of the plug-in module are the access to the Channel Setup menu for each input. The Channel Setup menu is displayed on the right side of the screen when the There are several types of softkeys available. A description of the different softkeys and their functions is provided in the

Quick Start Guide

NOTE

The plug-in module has both an electrical channel and an optical channel. Although many of the softkeys are similar, some differences exist. Examples in this book using the optical channel will note when the user would see differences if using the electrical channel.

supplied with the mainframe.

Channel

keys. These keys give you

Channel

key is pressed.

HP 83480A, 54750A User’s

2-2

Channel Setup Menu

Figure 2-1. Optical Channel Setup menu.

2-3

Channel Setup Menu

Figure 2-2. Electrical Channel Setup menu.

2-4

Displaying the Channel Setup Menus

Channel Setup Menu

To display the optical Channel Setup menu, press the located above the optical input connector.

To display the electrical Channel Setup menu, press the located above the electrical input connector.

Optical Channel

key

Electrical Channel

key

2-5

Channel Setup Menu

Display

The play is on, a waveform is displayed for that channel, unless the offset is adjusted so the waveform is clipped off the display.

The channel number, vertical scaling, and offset are displayed at the bottom left of the waveform area. They remain on the display until the channel is turned off, or an automatic measurement is performed. The automatic measurement results share the same area of the display as the channel setups.

When the channel display is off, the waveform display for that channel is turned off, pulse parameter measurements are stopped and acquisition on that channel is stopped, unless it is needed as an operand for waveform math functions.

Even though the channel display is off, you can still use the plug-in as a trigger source or as a function source in the Math menu. However, the analyzer will not trigger unless one or more of the other channel displays are turned on, or unless a math function is using one of the channels.

softkey turns the channel display off and on. When the channel dis-

Key Path

Channel,

2-6

Display

Channel Setup Menu

Scale

The mode is off, then the knob and arrow keys change the vertical scaling in a 1-2-5 sequence. When fine mode is on, the knob and arrow keys change the vertical scaling in 1 mV increments. You can also use the keypad to enter values in 1 mV increments, independent of the fine mode selection.

The scale will be displayed in volts or watts, as selected by the (Amperes, or unknown are available on electrical channels only.)

softkey controls the vertical scaling of the waveform. If the fine

Units

softkey.

Key Path

Channel,

Scale

Offset

The control on analog oscilloscopes. The advantage of digital offset is that it is calibrated. The offset voltage for electrical channels is the voltage at the center of the graticule area, and the range of offset is ±12 times the full resolution channel scale. For optical channels, the offset wattage is the wattage two graticule divisions above the bottom of the screen. This is set because, unlike voltage displays, "negative" power levels do not exist but the zero power level can be viewed clearly when the offset is set to zero watts. You can use the knob, arrow keys, or keypad to change the offset setting. The fine mode also works with offset.

When an HP 54700-series active probe is connected to the probe power connector, the offset control adjusts the external scale factor and offset of the hybrid inside the active probe. A probe connected to the auxiliary power connector will function, but the channel scale factor will ically.

The optical channel displays the value in watts and the electrical channel displays the value in volts.

softkey moves the waveform vertically. It is similar to the position

not

be adjusted automat-

Key Path

Channel,

Offset

2-7

Channel Setup Menu

Bandwidth/Wavelength....

Key Path

You can use the wavelength settings.

Bandwidth

This function is available on the electrical channel only.

You can use the bandwidth.

Channel,

Filter

The

Channel

Wavelength

This function is available on the optical channel only.

The surements. The factory calibrated wavelength is 850 nm. A user-calibrated wavelength is also available and can be calibrated in the range from 750 nm to 860 nm. Refer to Chapter 3, “Calibration Overview” for additional information on performing a calibration.

Bandwidth/Wavelength

Filter

function turns the filter on and off.

Bandwidth/Wavelength...., Filter On Off

Wavelength

Bandwidth/Wavelength

Bandwidth

function selects the desired wavelength for calibrated mea-

function to select either the 12.4 GHz or 20 GHz

....

.... softkey to change the bandwidth and

, Bandwidth

Key Path

Channel

Filter

This function selects the specific filter for the type of compliance testing to be performed.

Channel

2-8

Bandwidth/Wavelength

, Wavelength

....

Filter, 1063 Mb/s

....,

1250 Mb/s

+ 68 hidden pages

HP 83487A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

HP 83487A Optical/Electrical Plug-In Module

Contents

Getting Started

Getting Started

Front panel of the plug-in module

Trigger

Options and Accessories

Menu and Key Conventions

Step 1. Inspect the Shipment

Step 2. Install the Plug-in Module

Returning the Instrument for Service

Preparing the instrument for shipping

Channel Setup Menu

Channel Setup Menu

Displaying the Channel Setup Menus

Display

Scale

Offset

Bandwidth/Wavelength....