Agilent Technologies 83434A User manual

Agilent 83434A
Lightwave Receiver
User’s Guide

ii
© Copyright
Agilent Technologies 2000
All Rights Reserved. Repro-
duction, adaptation, or trans-
lation without prior written
permission is prohibited,
except as allowed under copy-
right laws.
Agilent Part No. 83434-90005
Printed in USA
February 2000
Agilent Technologies
Lightwave Division
3910 Brickway Boulevard-
Santa Rosa, CA 95403, USA
Notice.
The information contained in
this document is subject to
change without notice. Com-
panies, names, and data used
in examples herein are ficti-
tious unless otherwise noted.
Agilent Technologies makes
no warranty of any kind with
regard to this material, includ-
ing but not limited to, the
implied warranties of mer-
chantability and fitness for a
particular purpose. Agilent
Technologies shall not be lia-
bleforerrors contained herein
or for incidental or conse-
quential damages in connec-
tion with the furnishing,
performance, or use of this
material.
Restricted Rights Legend.
Use, duplication, or disclo-
sure by the U.S. Government
is subject torestrictions as set
forth in subparagraph (c) (1)
(ii) of the Rights in Technical
Data and Computer Software
clauseatDFARS252.227-7013
for DOD agencies, and sub-
paragraphs(c)(1)and(c)(2)
of the Commercial Computer
Software Restricted Rights
clause at FAR 52.227-19 for
other agencies.
Warranty.
This Agilent Technologies
instrument product is war-
ranted against defects in
material and workmanship for
a period of one year from date
of shipment. During the war-
ranty period, Agilent Technol-
ogies 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 desig-
nated by Agilent Technolo-
gies. Buyer shall prepay
shipping charges to Agilent
Technologies and Agilent
Technologies shall pay ship-
ping charges to return the
product to Buyer. However,
Buyer shall pay all shipping
charges, duties, and taxes for
products returned to Agilent
Technologies from another
country.
Agilent Technologies war-
rants that its software and
firmware designated by Agi-
lent Technologies for use with
an instrument will execute its
programming instructions
when properly installed on
that instrument. Agilent Tech-
nologies does not warrant that
the operation of the instru-
ment, 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, Buyer-
supplied software or interfac-
ing, unauthorized modifica-
tion or misuse, operation
outside of the environmental
specifications for the product,
or improper site preparation
or maintenance.
No other warranty is
expressed or implied. Agilent
Technologies specifically dis-
claims the implied warranties
of merchantability and fitness
for a particular purpose.
Exclusive Remedies.
The remedies provided herein
are buyer's sole and exclusive
remedies. Agilent Technolo-
gies shall not be liable for any
direct, indirect, special, inci-
dental, or consequential dam-
ages, whether based on
contract, tort, or any other
legal theory.
Safety Symbols.
CAUTION
The caution sign denotes a
hazard. It calls attention to a
procedure which, if not cor-
rectly performed or adhered
to, could result in damage to
or destruction of the product.
Do not proceed beyond a cau-
tion sign until the indicated
conditions are fully under-
stood and met.
WARNING
The warning sign denotes a
hazard. It calls attention to a
procedure which, if not cor-
rectly 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.
The instruction man-
ual symbol. The prod-
uct 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 posi-
tionsoftheinstrument
power line switch.
❍The OFF symbols
are used to mark the
positions of the instru-
ment power line
switch.
The CE mark is a reg-
istered trademark of
the European Commu-
nity.
The CSA mark is a reg-
istered trademark of
the Canadian Stan-
dards Association.
The C-Tick mark is a
registered trademark
of the Australian Spec-
trum Management
Agency.
This text denotes the
instrument is an
Industrial Scientific
and Medical Group 1
Class A product.
Typographical Conven-
tions.
The following conventions are
used in this book:
Key type for keys or text
located on the keyboard or
instrument.
Softkey type for key names that
are displayed on the instru-
ment’s screen.
Display type for words or
characters displayed on the
computer’s screen or instru-
ment’s display.
User type for words or charac-
ters that you type or enter.
Emphasis type for words or
characters that emphasize
some point or that are used as
place holders for text that you
type.
ISM1-A

iii
General Safety Considerations
General Safety Considerations
This product has been designed and tested in accordance with IEC Publica-
tion 61010-1, Safety Requirements for Electrical Equipment for Measurement,
Control, and Laboratory Use, and has been supplied in a safe condition. The
instruction documentation contains information and warnings that must be
followed by the user to ensure safe operation and to maintain the product in a
safe condition.
WARNING 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.
WARNING To prevent electrical shock, disconnect the Agilent 83434A from
mains before cleaning. Use a dry cloth or one slightly dampened with
water to clean the external case parts. Do not attempt to clean
internally.
WARNING This is a Safety Class 1 product (provided with a protective earthing
ground incorporated in the power cord). The mains plug shall only be
inserted in a socket outlet provided with a protective earth contact.
Any interruption of the protective conductor inside or outside of the
product is likely to make the product dangerous. Intentional
interruption is prohibited.
WARNING No operator serviceable parts inside. Refer servicing to qualified
personnel. To prevent electrical shock, do not remove covers.
WARNING For continued protection against fire hazard, replace line fuse only
with same type and ratings (5x20 mm, 1.6 A, 250 V time-delay, low
breaking capacity fuse). The use of other fuses or materials is
prohibited.
CAUTION This product is designed for use in Installation Category II and Pollution
Degree 2 per IEC 61010-1 and 664 respectively.
CAUTION VENTILATIONREQUIREMENTS:Wheninstallingtheproductinacabinet,the
convection into and out of the product must not be restricted. The ambient
temperature (outside the cabinet) must be less than the maximum operating

iv
General Safety Considerations
temperature of the product by 4°C for every 100 watts dissipated in the
cabinet. If the total power dissipated in the cabinet is greater than 800 watts,
then forced convection must be used.
CAUTION Always use the three-prong ac power cord supplied with this instrument.
Failure to ensure adequate earth grounding by not using this cord may cause
instrument damage.
CAUTION Do not connect ac power until you have verified the line voltage is correct as
described in Chapter 4, “Specifications and Regulatory Information”. Damage
to the equipment could result.
CAUTION This instrument has autoranging line voltage input. Be sure the supply voltage
is within the specified range.
Measurement accuracy—it’s up to you!
Fiber-optic connectors are easily damaged when connected to dirty or damaged cables
and accessories. The Agilent 83434A front-panel OPTICAL INPUT connector is no excep-
tion. 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 Agilent 83434A, “Fiber-Optic Connec-
tors” on page 3-8.

v
The Agilent 83434A—At a Glance
The Agilent 83434A—At a Glance
The Agilent 83434A 10 Gb/s lightwave receiver is designed to recover clock
data and to provide linear, non-retimed data from digitally modulated SDH/
SONET STM-64/OC-192 optical signals, as well as signals employing forward
error correction (FEC) at 10.664 Gb/s (option 106). The receiver is based on
an amplified PIN receiver to produce a linear output with AGC stabilization.
The receiver is designed to provide –16 dBm sensitivity with PRBS lengths to
231 –1 with BER performance of at least 1E-10.
The recovered clock can be used as a trigger input for the Agilent Infiniium
DCA to allow optical eye diagram measurements when no external clock sig-
nal is available for triggering. The recovered clock also provides the required
clock input for the error detector of the Agilent 71612B error performance
analyzer. The non-retimed data output can be used with an error detector to
measure and optimize BER. The output of the receiver is also appropriate for
eye contour and Q-factor measurements.
The Agilent 83434A can be combined with the Agilent 83433A 10 Gb/s light-
wave transmitter to create a complete optical link for system or fiber testing,
or to form a basis for substitution testing of commercial transmitters and
receivers.

Contents
Contents-1
General Safety Considerations iii
The Agilent 83434A—At a Glance v
1 Getting Started
2 Using the Agilent 83434A
Front-Panel Features 2-2
Rear-Panel Features 2-3
Quick Confidence Check 2-4
Agilent 83434A Connection to a Bit-Error-Ratio Test Set 2-6
BER Performance Verification 2-9
3 Reference
Accessories Supplied 3-2
Options 3-3
Replacement Parts 3-4
Front-Panel Fiber-Optic Adapters 3-5
Power Cords 3-7
Fiber-Optic Connectors 3-8
Instrument Service 3-18
4 Specifications and Regulatory Information
Agilent 83434A Specifications and Characteristics 4-3
Regulatory Information 4-6

Contents-2
Contents

1
Step 1. Inspect the Shipment 1-3
Step 2. Check the Fuse 1-5
Step 3. Connect the Line-Power Cable 1-6
Step 4. Turn on the Agilent 83434A 1-8
Step 5. Avoid costly repairs 1-9
Step 6. Learn more about our products 1-10
Getting Started

1-2
Getting Started
Setting Up the Agilent 83434A
Setting Up the Agilent 83434A
This chapter shows you how to install your lightwave receiver. After you’ve
completed this chapter, continue with Chapter 2, “Using the Agilent 83434A”.
Refer to Chapter 3, “Reference”for the following additional information:
•Tips on avoiding costly repairs by proper optical connection cleaning
techniques.
•Lists of available accessories and power cords.
•Instructions on returning your instrument to Agilent Technologies for service.
•Agilent Technologies Sales and Service Offices.
Chapter 4, “Specifications and Regulatory Information”contains information
on operating conditions, such as temperature.

1-3
Getting Started
Setting Up the Agilent 83434A
Step 1. Inspect the Shipment
❒Inspect the shipping container for damage.
❒Inspect the instrument.
❒Verify that you received the accessories you ordered.
Keep the shipping container and cushioning material until you have inspected
the contents of the shipment for completeness and have checked the light-
wave receiver mechanically and electrically.
The lightwave receiver is packed within a carton. Refer to “Instrument Ser-
vice”on page 3-18, for the description and part numbers of the packaging
materials. Refer to “Options”on page 3-3, for the accessories shipped with the
lightwave receiver.
If the shipping materials are in good condition, retain them for possible future
use. You may wish to ship the lightwave receiver to another location or return
it to Agilent Technologies for service. Refer to “Instrument Service”on
page 3-18.
If anything is missing or defective, or if the lightwave receiver does not pass
the verification test, contact your nearest Agilent Technologies Sales Office. If
the shipment was damaged, contact the carrier, then contact the nearest Agi-

1-4
Getting Started
Setting Up the Agilent 83434A
lent Technologies Sales Office. Keep the shipping materials for the carrier’s
inspection. The Agilent Sales Office will arrange for repair or replacement at
Agilent Technologies’option without waiting for claim settlement.
Serial numbers
Agilent Technologies makes frequent improvements to its products to
enhance their performance, usability, or reliability, and to control costs. Agi-
lent service personnel have access to complete records of design changes to
each type of equipment, based on the equipment’s serial number. Whenever
you contact Agilent about your lightwave receiver, have the complete serial
number available to ensure obtaining the most complete and accurate infor-
mation possible.
A serial-number label is attached to the rear of the lightwave receiver. It con-
tains the serial number and the options installed in the lightwave receiver.
Whenever you specify the serial number or refer to it in obtaining information
about your lightwave receiver, be sure to use the complete number.

1-5
Getting Started
Setting Up the Agilent 83434A
Step 2. Check the Fuse
1Locate the line-input connector on the instrument’s rear panel.
2Disconnect the line-power cable if it is connected.
3Use a small flat-blade screwdriver to pry open the fuse holder door.
4The fuse is housed in a small container. Insert the tip of a screwdriver on the
side of the container and gently pull outward to remove the container. A spare
fuse is stored below the line fuse.
WARNING For continued protection against fire hazard, replace line fuse only
with same type and ratings (5×20 mm, 1.6 A, 250 V time-delay, low
breaking capacity fuse). The use of other fuses or materials is
prohibited.

1-6
Getting Started
Setting Up the Agilent 83434A
Step 3. Connect the Line-Power Cable
CAUTION Always use the three-prong AC power cord supplied with this instrument.
Failure to ensure adequate earth grounding by not using this cord may cause
instrument damage.
CAUTION Do not connect ac power until you have verified the line voltage is correct as
described in the following paragraphs. Damage to the equipment could result.
CAUTION This instrument has autoranging line voltage input. Be sure the supply voltage
is within the specified range.

1-7
Getting Started
Setting Up the Agilent 83434A
1Verify that the line power meets the requirements shown in the following table.
2Connect the line-power cord to the rear-panel connector of the instrument.
3Connect the other end of the line-power cord to the power receptacle.
Various power cables are available to connect the Agilent 83434A to ac power
outlets unique to specific geographic areas. The cable appropriate for the area
to which the Agilent 83434A is originally shipped is included with the unit. You
can order additional ac power cables for use in different geographic areas.
Refer to “Power Cords”on page 3-7.
Line Power Requirements
Power 115 VAC: 50 Watts MAX
230 VAC: 50 Watts MAX
Voltage nominal: 115 VAC range:90–132 V
nominal:230 VACrange:98–254 V
Frequency nominal:50 Hz/60 Hzrange:47–63 Hz

1-8
Getting Started
Setting Up the Agilent 83434A
Step 4. Turn on the Agilent 83434A
With the power cable inserted into the line module, turn the lightwave
receiver on by pressing the line switch. The green light-emitting diode (LED)
should light.
NOTE The front panel LINE switch disconnects the mains circuits from the mains supply after
the EMC filters and before other parts of the instrument.
If the Agilent 83434A fails to turn on properly, consider the following possibili-
ties:
❒Is the line fuse good?
❒Does the line socket have power?
❒Is it plugged into the proper ac power source?
If the instrument still fails, return it to Agilent Technologies for repair. Refer to
“Instrument Service”on page 3-18

1-9
Getting Started
Setting Up the Agilent 83434A
Step 5. Avoid costly repairs
CAUTION Fiber-optic connectors are easily damaged when connected to dirty or
damaged cables and accessories. The front-panel connectors of the
Agilent 83434A are 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 Agilent 83434A, refer to “Fiber-Optic Connectors”on page 3-8.

1-10
Getting Started
Setting Up the Agilent 83434A
Step 6. Learn more about our products
To learn more about Agilent Technologies products, visit our website at
http://www.agilent.com.
If you wish to find out more about your new lightwave receiver, use the key-
word “83434A”in your search.

2
Front-Panel Features 2-2
Rear-Panel Features 2-3
Quick Confidence Check 2-4
Agilent 83434A Connection to a Bit-Error-Ratio Test Set 2-6
BER Performance Verification 2-9
Using the Agilent 83434A

2-2
Using the Agilent 83434A
Front-Panel Features
Front-Panel Features
Figure 2-1. The Agilent 83434A front panel.
CLOCK OUT Output is nominally 9.95328 GHz or 10.66423 GHz (option
106).
DATA OUT Provides an amplified, non-retimed signal corresponding to
the incoming data stream.
OPTICAL IN Maximum signal input is 0 dBm, damage level input is +7
dBm. This input accepts any of the Agilent 81000-series
connector interface adapters.
INPUT PRESENT Indicates the presence of sufficient optical power.