Users Manual
DTX
Fiber Test Kit
Users Manual
PN 2411346
December 2004
© 2004 Fluke Corporation. All rights reserved. Printed in USA.
All product names are trademarks of their respective companies.
LIMITED WARRANTY AND LIMITATION OF LIABILITY
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4/04
Fluke Networks
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Table of Contents
Title
Introduction ..................................................................................................................
DTX Fiber Test Kit Features......................................................................................
Package Contents.....................................................................................................
Registration ..............................................................................................................
Additional Answers to Your Cable Testing Questions ................................................
Contacting Fluke Networks ..........................................................................................
The DTX Fiber Optic Meter...........................................................................................
Taking Care of Your DTX-FOM................................................................................
Safety Precautions ...............................................................................................
Care and Usage Instructions ...............................................................................
Calibration and Service ............................................................................................
The SimpliFiber 850/1300 Source..................................................................................
Taking Care of Your SimpliFiber 850/1300 Source .................................................
Safety Precautions ...............................................................................................
Care and Usage Instructions ...............................................................................
i
Page
1
1
2
2
2
3
3
4
4
4
4
4
7
7
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DTX Fiber Test Kit
Users Manual
Replacing the Batteries ...........................................................................................
Calibration and Service............................................................................................
Getting Started.............................................................................................................
Cleaning the Connectors and Adapters..................................................................
Testing Your Patch Cords ........................................................................................
Setting Up and Making Connections...........................................................................
Inserting and Removing the DTX-FOM...................................................................
Configuring the Fiber Settings................................................................................
Setting the Reference..............................................................................................
The Importance of Using Mandrels (for use with an LED source only)............
Connecting to the Fiber-Link-Under-Test...............................................................
Measuring Loss .............................................................................................................
Running an AutoTest in Far End Source Mode ......................................................
Viewing AutoTest Results...................................................................................
Saving AutoTest Results ..........................................................................................
Single Test Mode .....................................................................................................
Saving Single Test Results...................................................................................
Monitoring Optical Power ...........................................................................................
Optical Power Measurements .................................................................................
Verifying the Performance of a Patch Cord ................................................................
8
8
9
9
10
10
11
11
15
16
21
24
24
26
28
28
28
29
30
33
Checking a Patch Cord You Suspect is Defective ........................................................ 36
Index
ii
List of Figures
Figure
Title
Page
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
DTX FOM ..............................................................................................................................
SimpliFiber 850/1300 Source Front Panel............................................................................
Inserting and Removing the DTX-FOM ...............................................................................
Wrapping a Patch Cord around a Mandrel ........................................................................
Reference Connections ........................................................................................................
Connection Diagram: Far End Source Mode.......................................................................
Connection Diagram: Monitoring Optical Power at the End of a Link.............................
Connection Diagram: Monitoring Optical Power at a Source ...........................................
Autotest Summary Results Screen .......................................................................................
Autotest Detailed Results Screen ........................................................................................
Power Meter Measurements for SINGLE TEST Mode .........................................................
Power Test Measurements for MONITOR Mode ................................................................
Connecting the Test Patch Cord (P3)...................................................................................
Connecting a Known-Good Patch Cord ..............................................................................
Connecting a Suspect Patch Cord (P2) ................................................................................
3
5
11
17
20
21
22
23
26
27
30
31
35
37
39
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DTX Fiber Test Kit
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iv
List of Tables
Table
1.
2.
3.
B-1.
B-2.
C-1.
Title
Page
Description of Items on the SimpliFiber 850/1300 Source Front Panel..............................
Test Settings for Fiber ..........................................................................................................
TIA/EIA-568 B.1 and ISO/IEC TR 14763-3 Mandrel Requirements ......................................
Test Method Names .............................................................................................................
Test Methods Required by Standards .................................................................................
Options and Accessories ......................................................................................................
6
12
16
41
42
43
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DTX Fiber Test Kit
Users Manual
vi
DTX Fiber Test Kit
Introduction
The DTX Fiber Test Kit is comprised of two instruments:
the DTX Fiber Optic Meter (DTX-FOM) and the
SimpliFiber 850/1300 Source. These instruments are
engineered to work together to measure optical power
and insertion loss in fiber optic cabling.
The DTX-FOM is an optical power loss meter that
measures the power of light emerging from fiber. The
meter is calibrated to measure power loss at any of the
following wavelengths: 850 nm, 1300 nm, 1310 nm, and
1550 nm. The DTX-FOM is inserted directly into the
mainframe of a DTX CableAnalyzer. It does not interfere
with the DTX CableAnalyzer’s copper test interface;
therefore, you can easily switch between testing copper
and fiber by pressing a softkey to select the desired cable
type. To test 1310 nm or 1550 nm wavelengths, use the
optional SimpliFiber laser sources (listed in Table C-1).
The SimpliFiber 850/1300 serves as the optical source. In
this capacity, the tester provides a consistent dual
wavelength light at 850 nm and 1300 nm.
This manual shows you how to set up and use the DTX
Fiber Test Kit to measure loss and optical power in fiber
optic cabling.
DTX Fiber Test Kit Features
The DTX Fiber Test Kit, hereafter referred to as the DTXFTK, provides the following features and functions:
•
Enables you to verify that cabling is correctly
installed by measuring insertion loss that can be
compared with a user-defined standard
•
Helps you troubleshoot faulty devices by measuring
the power emitted from an optical source that can
be compared against the manufacturer’s
specifications
•
Stores and organizes test records in internal memory
or on a removable Secure Digital Multimedia Card
(SD MMC)
•
Manages and prints test results on a PC (using
included LinkWare software).
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DTX Fiber Test Kit
Users Manual
Package Contents
Take a moment to check the shipping container to make
sure that the contents match the supplied items listed
below. If any item is damaged or missing, contact your
place of purchase.
•
DTX Fiber Optic Meter (DTX-FOM)
•
SimpliFiber 850/1300 LED optical source
•
This Users Guide
•
CD-ROM with the Getting Started Guide in multiple
languages
•
Registration card.
Registration
Please take the time to register your DTX-FTK.
Registering your product with Fluke Networks gives you
access to valuable product update information,
troubleshooting tips, and other support services.
To register, go to the Fluke Networks website at
www.flukenetworks.com/registration and fill out the online
registration form.
2
Additional Answers to Your Cable
Testing Questions
The Fluke Networks Knowledge Base answers common
questions about Fluke Networks products and provides
articles on cable testing techniques and technology.
To access the Knowledge Base, log on to
www.flukenetworks.com, then click the knowledge base
link at the top of the page.
The website www.cabletesting.com also answers
common questions about cable testing and provides
articles on standards, testing, documentation, and other
reference information.
Contacting Fluke Networks
Contacting Fluke Networks
www.flukenetworks.com
support@flukenetworks.com
+1-425-446-4519
•
Australia: 61 (2) 8850-3333 or 61 (3) 9329 0244
•
Beijing: 86 (10) 6512-3435
•
Brazil: 11 3044 1277
•
Canada: 1-800-363-5853
•
Europe: +44 1923 281 300
•
Hong Kong: 852 2721-3228
•
Japan: +81-3-3434-0181
•
Korea: 82 2 539-6311
•
Singapore: +65-6738-5655
•
Taiwan: (886) 2-227-83199
•
USA: 1-800-283-5853
The DTX Fiber Optic Meter
The DTX Fiber Optic Meter (DTX-FOM) enables you to
measure optical power when used with a far end source,
such as a SimpliFiber 850/1300. The meter is inserted into
the DTX CableAnalyzer’s main module cavity (see Figure
3) and connects to the tester through the digital
interface.
Figure 1 shows a diagram of the DTX-FOM. This
instrument has a single SC input connector that receives
optical signals for loss and power measurements. Make
sure that when the instrument is not in use that you
cover the INPUT connector with the dust cap.
Visit our website for a complete list of phone numbers.
bab02.eps
Figure 1. DTX FOM
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DTX Fiber Test Kit
Users Manual
Taking Care of Your DTX-FOM
•
This section describes how to care for your DTX-FOM and
provides important safety information and precautions
for use.
Clean the case with a soft cloth and mild detergent.
Do not use abrasives or solvents.
•
Periodically clean the fiber optic meter and source
connectors with optical-grade tissue and opticalgrade alcohol or with filtered, compressed air.
•
Protect the INPUT connector with the dust cap when
the unit is not in use.
Safety Precautions
W Warning
To avoid possible exposure to hazardous
invisible LED radiation and to prevent eye
damage:
•
Do not open the case. There are no userserviceable parts inside.
•
Use of controls, adjustments, or procedures
not stated herein might result in hazardous
radiation exposure.
Care and Usage Instructions
To obtain reliable test results, always follow proper
cleaning and maintenance procedures:
•
4
Always inspect the fiber connectors before making
connections.
Calibration and Service
Once a year, the DTX-FOM requires calibration at a
service center to ensure that it meets or exceeds the
published accuracy specifications. Contact an authorized
Fluke Networks Service Center for information on getting
the instrument calibrated.
The SimpliFiber 850/1300 Source
The SimpliFiber 850/1300 Source provides a consistent
dual wavelength light signal that is injected into fiber
cable. Figure 2 shows the tester’s front panel. Following
the figure, Table 1 provides descriptions of the numbered
items in the diagram.
The SimpliFiber 850/1300 Source
A
B
C
H
D
E
G
F
alq01.eps
Figure 2. SimpliFiber 850/1300 Source Front Panel
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DTX Fiber Test Kit
Users Manual
Table 1. Description of Items on the SimpliFiber 850/1300 Source Front Panel
Item
Description
A
850 nm port with SC connector. The 850 nm LED lights when the port is active.
B
1300 nm port with SC connector. The 1300 nm LED lights when the port is active.
C
Cw/2kHz LED. This LED lights steady when the output is in continuous wave (CW) mode and blinks when
the output is modulated at 2 kHz. Press Cto switch modes.
Use continuous wave (CW) mode for making loss or power measurements with a meter other than the DTXFOM. Use the 2 kHz modulated mode for identifying fibers with a fiber identifier.
6
D
LOW BATTERY LED. Lights when the battery power is low (see “Replacing the Batteries”).
E
Switches the output from 850 nm to 1300 nm.
F
Switches the output from continuous wave (CW) to 2 kHz modulated modes.
G
On/off key.
H
Switches the output to Auto mode, which is used only with the DTX-FOM. In Auto mode, the output is
encoded to tell the DTX-FOM which wavelength is being transmitted. Press Cto exit Auto mode.
The SimpliFiber 850/1300 Source
Taking Care of Your SimpliFiber 850/1300 Source
•
Do not modify the source.
This section describes how to care for your SimpliFiber
850/1300 Source and provides important safety
information and precautions for using your tester.
•
Do not magnify the source output. Use
only approved connectors and adapters.
•
Do not use controls, adjustments, or
procedures not documented or approved
by Fluke Networks.
Safety Precautions
Please observe the following safety regulations when
using the SimpliFiber 850/1300 Source.
W* Warning Class 1 Laser Product
To avoid possible eye damage caused by
hazardous radiation:
•
Never look directly into the optical output
connectors. Some sources produce invisible
radiation that can permanently damage
your eyes.
•
Do not open the case, except to change the
batteries. There are no user-serviceable
parts inside.
7
DTX Fiber Test Kit
Users Manual
Care and Usage Instructions
Replacing the Batteries
Treat the SimpliFiber 850/1300 Source with care to ensure
the best performance.
The SimpliFiber 850/1300 Source uses two AA alkaline
batteries. When the Low Battery LED lights, replace the
batteries. The battery compartment is located on the
back panel of the tester.
•
Clean the case with a soft cloth and mild detergent.
Do not use abrasives or solvents.
•
Always clean the fiber optic connectors before use.
Use lint-free swabs, wipes moistened with isopropyl
alcohol, or pre-moistened swabs or wipes approved
for use on fiber connectors. Always dry the
connectors immediately after cleaning.
•
Periodically inspect the endfaces of the connector
with a fiber microscope, such as a Fluke Networks
FiberInspector Video Microscope. If an endface is
damaged, contact Fluke Networks for service
information.
Before testing, let the SimpliFiber 850/1300 Source
stabilize for five minutes after you turn it on.
8
Calibration and Service
The SimpliFiber Source should be calibrated annually
with specialized equipment. Contact an authorized Fluke
Networks Service Center for service requirements and
information on getting the tester calibrated.
Getting Started
Getting Started
•
Bulkhead connectors: Dip the tip of a foam swab in
alcohol; then touch the swab to a dry wipe. Touch a
new, dry swab to the alcohol spot on the wipe. Push
the swab into the connector; twist it around three to
five times against the endface, then remove and
dispose of the swab. Dry the connector with a dry
swab by twisting it around in the connector three to
five times.
•
Inspect connectors with a fiber microscope, such as
the Fluke Networks FiberInspector Video Microscope
before making connections.
Before you begin any job, you need to do the following:
Warning
Read all “Safety Precautions” and “Care and
Usage Instructions” before using the SimpliFiber
850/1300 Source and the DTX-FOM.
•
Clean the connectors and adapters.
•
Test your patch cords.
Cleaning the Connectors and Adapters
Clean and inspect the fiber connectors. Use 99 %-pure
isopropyl alcohol and optical-grade wipes or swabs to
clean connectors as follows:
•
Connector ends: Wipe the end of the ferrule with a
swab or wipe lightly moistened with alcohol. Dry
with a dry swab or wipe.
Periodically clean fiber adapters with a swab and alcohol.
Dry the adapters with a dry swab before use.
Always cover unused connectors with dust caps or plugs.
Clean dust plugs periodically with a swab or wipe and
alcohol.
Note
Use a 2.5 mm foam swab for cleaning the
tester’s optical connectors.
9
DTX Fiber Test Kit
Users Manual
Testing Your Patch Cords
Setting Up and Making Connections
You should make it a habit to test your patch cords
before each job. To do this, use another set of knowngood patch cords to set a reference and run an autotest
on each patch cord. For detailed instructions on verifying
the performance of your patch cords, see Appendix A.
To set up the DTX-FTK up for testing, you need do the
following:
•
Insert the DTX-FOM into the DTX CableAnalyzer
•
Configure the DTX CableAnalyzer’s Fiber settings
If you need to replace your patch cords, choose
replacements that meet the following requirements:
•
Set the reference level for the test
•
Core and cladding size: match the fiber to be tested
•
Connect the testers to the fiber-link-under-test.
•
Connector polish: PC or UPC
•
Patch cord length: maximum 5 m
To ensure optimum performance from your testers,
obtain replacement patch cords from Fluke Networks.
10
Setting Up and Making Connections
Inserting and Removing the DTX-FOM
Configuring the Fiber Settings
The DTX-FOM is inserted directly onto the mainframe of the
DTX CableAnalyzer. Figure 3 shows you how to insert and
remove the meter.
To configure the Fiber settings, complete the following:
Warning
Read all “Safety Precautions” and “Care
and Usage Instructions” before using the
SimpliFiber Source and the DTX-FOM.
Caution
Turn off the CableAnalyzer before inserting or
removing the DTX-FOM.
1.
Turn on the DTX CableAnalyzer.
2.
Turn the rotary dial to SETUP.
3.
Select Fiber then press H to display the Fiber
menu.
Refer to Table 2 for a list and description the
settings on this menu.
4.
Select settings for the parameters on the Fiber
menu.
The menu has three tabs. Use BCto display the
different tabs.
bab01f.eps
Figure 3. Inserting and Removing the DTX-FOM
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DTX Fiber Test Kit
Users Manual
Table 2. Test Settings for Fiber
Setting
Description
Fiber Type
Choose the type of fiber you will test. Selecting Custom allows you create a fiber type. See the
DTX Technical Reference Handbook for details.
Test Limit
Select the appropriate test limit for the job. The tester compares the fiber test results to the
selected test limit to produce PASS or FAIL results. Selecting Custom lets you create a test limit.
See the DTX Technical Reference Handbook for details.
Remote End Setup
Set to Far End Source. The other settings do not apply to the DTX-FTK.
12
Setting Up and Making Connections
Table 2. Test Settings for Fiber (continued)
Setting
Description
Bi-Directional
This setting does not apply to Far End Source mode.
Number of Adapters
These settings do not apply to Far End Source mode.
Number of Splices
Connector Type
Select the type of connector used in the cabling. This setting affects only the diagram shown
for reference connections. If the connector type used in the cabling is not listed, select
General.
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DTX Fiber Test Kit
Users Manual
Table 2. Test Settings for Fiber (continued)
Setting
Test Method >
Method A, B, C
Description
Loss results include connections added after referencing. The reference and test connections
determine which connections are included in the results. The Test Method refers to the
number of end connections included:
Method A: Loss results include one connection at one end of the link.
Method B: Loss results include connections at both ends of the link. The reference and test
connections shown in this manual produce Method B results, but are modified versions of
connections shown in the standards. The modified connections let you connect to links that
do not use SC connectors, while ensuring Method B results. For links with small form-factor
(SFF) connectors or different connector types at each end, use hybrid patch cords or alternate
reference and test connections. See the DTX Technical Reference Handbook or visit the Fluke
Networks Knowledge Base for suggestions.
Method C: Loss results exclude connections at the ends of the link. Only fiber loss is measured.
Different standards have different names for the three test methods. See Appendix A for
details. The DTX Technical Reference Handbook provides additional information on test
methods.
This setting does not affect loss results. It is only saved with the results to record which
method you used.
Index of Ref. Source (n) >
User Defined or Default
14
This setting does not apply to Far End Source mode.
Setting Up and Making Connections
Setting the Reference
Accurate repeatable measurements of optical power and
signal loss are essential for the installation and
maintenance of fiber optic cabling. To make accurate
measurements, you first need to set the reference.
The reference you set serves as the baseline power level
for insertion loss measurements. Regular setting of the
reference helps account for minor variations in source
power and connection integrity.
You should set the reference at these times:
•
At the beginning of each day
•
Any time you reconnect a patch cord to the module’s
input or to another source
•
Any time the tester warns you that a reference value
is out of date
•
Any time you see a negative loss measurement.
You must set the reference at these times:
Reference values should not change by more than a few
tenths of a dB from day to day. If you observer larger
changes, it may indicate a problem with the patch cords
or connections (see “Testing Your Patch Cords”).
•
Any time you start using a different SimpliFiber
Source.
•
Any time you change the Test Method setting in the
Fiber Setup (see “Configuring the Fiber Settings”).
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DTX Fiber Test Kit
Users Manual
The Importance of Using Mandrels (for use with an
LED source only)
When making reference connections and actual
connections to fiber, you should use standardized
mandrels. The use of mandrels is strongly recommended
when you are measuring optical insertion loss or optical
power with an LED source.
The mandrels act as mode filters. They remove unwanted
high-order modes from the optical signal when you are
testing with an LED source that overfills the fiber. The
resulting launch condition is more uniform, which
generally improves instrument-to-instrument
measurement consistency and loss measurement
repeatability.
TIA/EIA-568-B-compliant multimode mandrels for 3 mm
test jumpers are available for purchase from Fluke
Networks.
Table 3 provides a partial list of mandrel requirements for
TIA and ISO standards.
Table 3. TIA/EIA-568 B.1 and ISO/IEC TR 14763-3 Mandrel Requirements
Fiber core
size
50 µm
62.5 µm
16
Standard
Number of Wraps
Around Mandrel
Mandrel Diameter for 250 Mandrel Diameter for 3
µm Buffered Fiber
mm (0.12) Jacketed Cable
TIA/EIA-568 B.1 7.1
5
25 mm (1.0 in)
22 mm (0.9)
ISO/IEC TR 14763-3 6.22
5
15 mm (0.6)
15 mm (0.6)
TIA/EIA-568 B.1 7.1
5
20 mm (0.8)
17 mm (0.7)
ISO/IEC TR 14763-3 6.22
5
20 mm (0.8)
20 mm (0.8)
Setting Up and Making Connections
Figure 4 below shows you how to wrap the fiber around a
mandrel. Place mandrels on the tester’s output fiber, as
shown in the reference diagram (Figure 5) and the test
connection diagram (Figure 6). In both of these diagrams,
mandrels are indicated by a loop in the fiber.
Place top wrap
in groove under
retainer
Wrap 5 times
in grooves
Right:
no bends
at retainer
Wrong:
bends at
retainer
amd67f.eps
Figure 4. Wrapping a Patch Cord around a Mandrel
17
DTX Fiber Test Kit
Users Manual
To set the reference, do the following:
4.
Connect the two patch cords together with the
adapter, as shown in Figure 5.
5.
Turn on the DTX CableAnalyzer and the SimpliFiber
850/1300 Source.
Warning
Read all “Safety Information” and “Care and
Usage Instructions” before using the SimpliFiber
850/1300 Source and the DTX-FOM.
1.
Make sure that both the DTX CableAnalyzer and the
SimpliFiber 850/1300 Source are turned off.
2.
As shown in Figure 5, connect one end of a patch
cord to the output port on the SimpliFiber 850/1300
Source, making sure that you connect it to the port
that matches the desired wavelength. Wind the
patch cord around the mandrel (as shown in Figure
4).
3.
Connect a second patch cord to the INPUT port on
the DTX CableAnalyzer (see Figure 5).
18
Note
Let both instruments sit for one minute before
setting the reference. Set the reference only
after both testers have reached an ambient
temperature between 10 o C and 40 o C (50 oF
o
and 140 F).
Setting Up and Making Connections
6.
On the SimpliFiber 850/1300 Source, do the
following:
a.
b.
7.
Press Dto select the desired wavelength
(850 or 1300).
Make sure that the tester is in Auto mode.
If the Auto LED is not lit, press B.
On the DTX CableAnalyzer, turn the rotary dial to
SPECIAL FUNCTIONS. Select Set Reference, then
press H.
8.
Verify that the diagram matches your setup.
9.
Press P.
The tester sets the reference and displays the value
on the Set Reference screen.
10. Press F2(OK).
You can now disconnect the instruments from the
adapter and reconnect them to the fiber to be tested
(see “Connecting to the Fiber-Link-Under-Test”).
The Set Reference screen is displayed. This screen
shows a reference diagram.
19
DTX Fiber Test Kit
Users Manual
Figure 5 shows the reference connections for testing in far end source mode:
Adapter
DTX-FOM
INPUT port
F1
F2
Patch cords that match the fiber and
connectors to be tested
Mandrel*
OUTPUT
port
F3
TEST
EXIT
ENTER
SimpliFiber 850/1300 Source
SAVE
SINGLE
TEST
MONITOR
TALK
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
DTX CableAnalyzer
* Mandrel used only for
multimode fiber tested with
an LED source
bab10f.eps
Figure 5. Reference Connections
20
Setting Up and Making Connections
Connecting to the Fiber-Link-Under-Test
Figure 6 shows how to connect the instruments to the fiber optic cable when measuring insertion loss.
(P3) Short patch cord
Fiber link
Mandrel
P2 (Patch cord)
P1 (Patch cord)
INPUT
port
Adapter
F1
F2
OUTPUT
port
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
DTX CableAnalyzer
SimpliFiber 850/1300 Source
bab12f.eps
Figure 6. Connection Diagram: Far End Source Mode
21
DTX Fiber Test Kit
Users Manual
Figure 7 below and Figure 8 on the next page each show a different type of connection for monitoring optical power.
Fiber link
INPUT
port
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
SimpliFiber 850/1300 Source
or other optical fiber source
DTX CableAnalyzer
bab14f.eps
Figure 7. Connection Diagram: Monitoring Optical Power at the End of a Link
22
Setting Up and Making Connections
INPUT
port
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
DTX CableAnalyzer
SimpliFiber 850/1300 Source
or other optical fiber source
bab07f.eps
Figure 8. Connection Diagram: Monitoring Optical Power at a Source
23
DTX Fiber Test Kit
Users Manual
Measuring Loss
Running an AutoTest in Far End Source Mode
Loss measures the signal degradation in fiber optic
cabling. In this test, the SimpliFiber 850/1300 Source
injects a signal into the fiber cable, and the DTX-FOM
measures the received signal at 850 nm or 1300 nm.
To run an autotest, follow these steps:
Caution
If the patch cord was disconnected from the
SimpliFiber 850/1300 Source’s output since the
reference was set, you must set the reference
again to ensure that the measurements you
obtain are valid. See “Setting the Reference” for
details.
You can measure loss in autotest mode or in single test
mode. Both methods are documented in this section.
When you are using the DTX-FOM, autotest mode is the
recommended method.
1.
Connect the testers to the fiber-link-under-test, as
shown in Figure 6.
2.
Turn on the DTX CableAnalyzer and the SimpliFiber
850/1300 Source.
Note
Let both instruments sit for five minutes. Allow
additional time if the DTX-FOM has been stored
above or below room temperature.
24
Measuring Loss
3.
On the SimpliFiber 850/1300 Source, do the
following:
a.
Press Dto select the desired wavelength (850 or
1300).
Note
4.
On the DTX CableAnalyzer, turn the rotary dial to
AUTOTEST.
5.
Press P to run an autotest.
Autotest results are displayed when the test ends.
See “Viewing Autotest Results” for details.
The wavelength you select must match the
output port (850 or 1300) that you
connected the patch cord to in Step 1.
b.
Make sure that the tester is in Auto mode. If the
Auto LED is not lit, press B.
25
DTX Fiber Test Kit
Users Manual
Viewing AutoTest Results
When the autotest is completed, the Summary results screen, shown in Figure 9, is displayed:
1
A
Overall result for the fiber (either PASS or FAIL).
B
Loss (Remote ! Main): Overall loss on the fiber
connected between the output and input ports.
2
A E indicates PASS while an F indicates FAIL.
bab05f.eps
Figure 9. Autotest Summary Results Screen
To view the detailed measurements behind the overall PASS or FAIL summary press D to select a measurement. Then,
press H.
26
Measuring Loss
Figure 10 shows an example of detailed results for the Loss test:
A
1
B
Measured loss for fiber. If the value for Loss is
negative, you should set the reference again and
retest the cabling.
C
Maximum loss allowed by the selected test limit.
D
The difference between the limit and the measured
loss. The value for Margin is negative if the value for
Loss exceeds the limit.
E
Press F3(View Ref.) to view the reference information
used for the test.
F
Loss measurement meter. Values in the red zone
exceed the selected test limit.
2
6
3
4
5
Overall result for the loss measurement, either PASS
(E) or FAIL (F).
bab04f.eps
Figure 10. AutoTest Detailed Results Screen
27
DTX Fiber Test Kit
Users Manual
Saving AutoTest Results
3.
To save the Loss results data as a test report, press
Nwhile the Summary or detailed Loss results screen is
displayed.
On the SimpliFiber 850/1300 Source, do the
following:
a.
Press Dto select the desired wavelength (850 or
1300).
Note
Single Test Mode
The wavelength you select must match the
output port that the patch cord is
connected to.
To run a loss test in single test mode:
1.
Connect the SimpliFiber 850/1300 Source and the
DTX-FOM as shown in Figure 6.
2.
Turn on the DTX CableAnalyzer and the SimpliFiber
850/1300 Source.
b.
4.
On the DTX CableAnalyzer, turn the rotary dial to
SINGLE TEST. Then, select Loss.
5.
Press P.
Note
Let both instruments sit for five minutes. Allow
additional time if the DTX-FOM has been stored
above or below room temperature.
Make sure that the tester is in Auto mode. If the
Auto LED is not lit, press B.
Loss test results, shown in Figure 10, are displayed as
soon as the test ends.
Saving Single Test Results
To save the Loss results data as a test report, press
Nwhile the Loss results screen is displayed.
28
Monitoring Optical Power
Monitoring Optical Power
2.
Power on the SimpliFiber 850/1300 Source and do
the following:
The power meter function enables you to monitor the
optical power produced by a source, such as the
SimpliFiber 850/1300 or another optical fiber source.
a.
Press B.
b.
Press D to select the desired wavelength
(850 or 1300).
The DTX CableAnalyzer provides two ways to do this:
•
•
SINGLE TEST mode: measures power in the current
remote end configuration. Takes one power
measurement at 850 nm or 1300 nm. If you monitor
power in this mode, you can save the power
measurement.
MONITOR mode: monitors power continuously at
the INPUT port at 850 nm or 1300 nm. If you monitor
power in this mode, you cannot save the power
measurement.
To monitor optical power, do the following:
1.
Depending on your particular test scenario, use a
patch cord to connect the SimpliFiber 850/1300
Source to the INPUT jack on the DTX-FOM.
Refer to the connection diagram in Figure 7 if you
are monitoring optical power at the end of a link or
the diagram in Figure 8 if you are measuring optical
power at a connection.
3.
Power on the DTX CableAnalyzer, and do one of the
following:
•
Turn the rotary dial to SINGLE TEST. Select
Power, then press P to start monitoring.
OR
•
Turn the rotary dial to MONITOR. Select Power
Meter, then press P to start monitoring.
When the test ends, optical power measurements
are immediately displayed on the Power Meter
screen:
•
If you ran this test in SINGLE TEST mode, the
Power Meter screen shown in Figure 11 is
displayed.
•
If you ran this test in MONITOR mode, the
Power Meter screen shown in Figure 12 is
displayed.
29
DTX Fiber Test Kit
Users Manual
Optical Power Measurements
If you monitored power in SINGLE TEST mode, optical power measurements like those shown in Figure 11 are displayed:
2
1
A
Meter shows the power reading taken at the specified
wavelength.
B
Power reading in decibels (dBm) or microwatts (µW).
C
Press F1(µW) to switch between power readings in decibels
and microwatts.
3
bab09f.eps
Figure 11. Power Meter Measurements for SINGLE TEST Mode
You can save these measurements. To do so, press N.
30
Monitoring Optical Power
If you monitored power in MONITOR mode, optical power measurements like those shown in Figure 12 are displayed:
A
Meter showing the power reading. The displayed
reading is continuously updated until you press I.
B
Press F1(µW) to switch between power readings in
decibels (dBm) and microwatts (µW).
C
Press F3(Change λ) to change the wavelength of the
far end source.
1
2
3
bab06f.eps
Figure 12. Power Test Measurements for MONITOR Mode
Because optical power is read continuously, you cannot save power measurements when the tester is in MONITOR mode.
31
DTX Fiber Test Kit
Users Manual
32
Appendix A
Verifying the Performance of Patch Cords
It is good practice to test your patch cords before each
job. There are two verification procedures documented
in this appendix. The first procedure is a routine one. You
will use it regularly to verify that the patch cord you
want to use for your measurements is a good one. If you
suspect that a patch cord you want to use is faulty, use
the second procedure to determine if it is defective.
Verifying the Performance of a Patch
Cord
To verify that the patch cord (P3 in Figure 6) you plan to
use for link testing is in acceptable condition, complete
the following:
1.
Obtain fiber cables that are of the type
appropriate for your testing situation.
2.
Clean both ends of each fiber cable (see
“Cleaning the Connectors and Adapters” for
details).
33
DTX Fiber Test Kit
Users Manual
34
3.
Set the reference value (follow the procedure
under “Setting the Reference” earlier in this
manual).
4.
Disconnect the two reference patch cords (P1
and P2) and connect a short patch cord (P3)
between the two, as shown in Figure 13.
5.
On the DTX CableAnalyzer, turn the rotary dial
to AUTOTEST. Then, press P to run an
autotest.
6.
Look at the results and verify that the loss
reading is less than 0.35 dB (or whatever you
decide is appropriate).
If loss is higher than this value, clean the ends of
patch cord 3 (P3) and repeat the autotest. If the
loss reading remains too high, replace the patch
cord (P3).
Verifying the Performance of a Patch Cord
(P3) Short patch cord
Mandrel
P2 (Patch cord)
P1 (Patch cord)
INPUT
port
Adapter
F1
F2
OUTPUT
port
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
DTX CableAnalyzer
SimpliFiber 850/1300 Source
bab13f.eps
Figure 13. Connecting the Test Patch Cord (P3)
35
DTX Fiber Test Kit
Users Manual
Checking a Patch Cord You Suspect is
Defective
If you think that a patch cord is defective, use this
procedure to verify its performance:
1.
36
Obtain two fiber cables that are of the type
appropriate for your testing situation.
2.
Clean both ends of each cable (see “Cleaning
the Connectors and Adapters” for details).
3.
Wind a known-good patch cord (P1) around a
mandrel (refer to Figure 4).
4.
Connect one end of the patch cord (P1) to the
SimpliFiber 850/1300 Source and the other end
to the INPUT port on the DTX-FOM (refer to the
diagram in Figure 14).
Checking a Patch Cord You Suspect is Defective
P1(Patch cord)
Mandrel
DTX-FOM
INPUT port
F1
F2
1300 nm
output
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
DTX CableAnalyzer
SimpliFiber 850/1300 Source
bab16f.eps
Figure 14. Connecting a Known-Good Patch Cord
37
DTX Fiber Test Kit
Users Manual
5.
6.
Power on the SimpliFiber 850/1300 Source.
Then, do the following:
a.
Press Dto select the desired
wavelength (850 or 1300).
b.
Make sure that the tester is in Auto
mode. If the Auto LED is not lit, press
B.
38
c.
Press P.
d.
Press F2(OK).
Note
After you set the reference, do not
remove the patch cord (P1) from the
SimpliFiber 850/1300 Source.
Turn the rotary dial to SPECIAL
FUNCTIONS. Select Set Reference, then
press H.
The Set Reference screen is displayed.
This screen shows a reference diagram.
Verify that the diagram matches your
setup.
The tester sets the reference and
displays the value on the Set Reference
screen.
Power on the DTX CableAnalyzer and set the
reference value. To do this:
a.
b.
7.
Connect a suspect patch cord (P2), as shown in
Figure 15.
Checking a Patch Cord You Suspect is Defective
P2(Patch cord)
P1(Patch cord)
Mandrel
DTX-FOM
INPUT port
F1
F2
1300 nm
output
Adapter
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
DTX CableAnalyzer
SimpliFiber 850/1300 Source
bab17f.eps
Figure 15. Connecting a Suspect Patch Cord (P2)
39
DTX Fiber Test Kit
Users Manual
8.
On the DTX CableAnalyzer, turn the rotary dial
to AUTOTEST. Then, press P to run an
autotest.
9.
Look at the results and verify that the loss
reading is less than 0.5 dB.
If loss is higher than this value, clean the ends of
the patch cord P2) and repeat the autotest. If
the loss reading remains too high, the patch
cord (P2) is defective and should be replaced.
40
Appendix B
Test Method Reference Tables
Industry standards use different names for equivalent test methods. Table B-1 shows the names used in this manual and by
four common industry standards for the three fiber test methods.
Table B-1. Test Method Names
Link End Connections
Included in Loss Results
This
Manual
TIA/EIA-526-14A
(multi-mode)
TIA/EIA-526-7
(single mode)
IEC 61280-4-1
(multi-mode)
IEC 61280-4-2
(single mode)
1 connection
Method A
Method A
Method A.2
Method 1
Method A2
2 connections
Method B
Method B
Method A.1
Method 2
Method A1
None
Method C
Method C
Method A.3
Method 3
Method A3
41
DTX Fiber Test Kit
Users Manual
Table B-2 shows the test methods required by standards.
Table B-2. Test Methods Required By Standards
Standard or Application
Test Method
(as named in this
manual)
Standard or Application
Test Method
(as named in this
manual)
TIA-568-B
B
10GBASE-S
B
ISO 11801
B
10GBASE-L
B
EN50173
B
10GBASE-LX
B
10BASE-FB
A
10GBASE-E
B
10BASE-FP
A
Fibre Channel
B
10BASE-FL
A
ATMl
B
10/100BASE-SX
B
FDDI
B
100BASE-FX
B
Token Ring
B
1000BASE-LX
B
Fluke Networks General Fiber
B
1000BASE-SX
B
42
Appendix C
Options and Accessories
This appendix lists the options and accessories that are
available for the SimpliFiber Source and the DTX Series
CableAnalyzers. For the complete list, visit the Fluke
Networks website at www.flukenetworks.com. To order
options or accessories, contact Fluke Networks as
described under “Contacting Fluke Networks”.
Table C-1. Options and Accessories
Option or Accessory
SimpliFiber 1310 Source (ST Connector)
Model Number
8251-01
SimpliFiber 1310 Source (SC Connector)
8251-11
SimpliFiber 1550 Source (ST Connector)
8251-02
SimpliFiber 1550 Source (SC Connector)
8251-12
SimpliFiber Source yellow holster with connector cover
1705523
SimpliFiber Source battery door
1704450
DTX-MFM Multimode Fiber Module, 850 nm/1300 nm
DTX-MFM
DTX-GFM Gigabit Fiber Module, 850 nm/1310 nm
DTX-GFM
43
DTX Fiber Test Kit
Users Manual
Table C-1. Options and Accessories (continued)
Option or Accessory
Model Number
DTX-SFM Singlemode Fiber Module, 1310 nm/1550 nm
DTX-SFM
DTX-FTK Fiber Test Kit
Fiber optic meter module and 850 nm/1300 nm SimpliFiber Source. Measures power and loss at 850
nm/1300 nm (1310 nm/1550 nm with optional source).
DTX-FTK
DTX-FOM Fiber Optic Meter Module
Measures power and loss at 850 nm/1300 nm and 1310 nm/1550 nm.
DTX-FOM
Fiber Jack Accessory Kit, 62.5 µm multimode
NFK1-FJ
LC Accessory Kit, 62.5 µm multimode
NFK1-LC
44
Options and Accessories
Table C-1. Options and Accessories (continued)
Option or Accessory
Model Number
MT-RJ Accessory Kit, 62.5 µm multimode
NFK1-MTRJ
MT-RJ Accessory Kit, 50 µm multimode
NFK2-MTRJ
VF-45 Accessory Kit, 62.5 µm multimode
NFK1-VF45
VF-45 Accessory Kit, 50 µm multimode
NFK2-VF45
ST Cable Kit, 50 µm multimode
NFK2-ST
Fiber Optic Cleaning
Kit NF430
ST/ST Singlemode Fiber Optic Adapter
NF300SM
Fiber Optic Adapter, SC/SC for singlemode and multimode connectors
NF310SM
ST/FC Simplex 62.5 µm 1m patch cord
FOC-ST/FC
ST/ST Simplex 62.5 µm 1m patch cord
FOC-ST/ST
ST/SC Simplex 62.5 µm 1m patch cord
FOC-ST/SC
45
DTX Fiber Test Kit
Users Manual
Table C-1. Options and Accessories (continued)
Option or Accessory
Model Number
ST/SMA Simplex 62.5 µm 1m patch cord
FOC-ST/SMA
ST/FC Simplex Singlemode 1m patch cord
NF120SM
ST/ST Simplex Singlemode 1m patch cord
NF100SM
ST/SC Simplex Singlemode 1m patch cord
NF110SM
SC/SC Simplex 62.5 µm 1m patch cord
NF215
ST/ST Simplex 62.5 µm 1m patch cord
NF230
Red Multimode Fiber Mandrel for 50 µm fiber with 3 mm jackets
NF-MANDREL-50
Gray Multimode Fiber Mandrel for 62.5 µm fiber with 3 mm jackets
NF-MANDREL-625
Multimode Fiber Mandrel kit containing two red 50 µm mandrels and two gray 62.5 µm
mandrels
NFK1-MANDREL-KIT
46
Appendix D
DTX-FTK Specifications
This appendix lists the specifications for the DTX-FTK.
DTX Fiber Optic Meter (DTX-FOM)
General
Compatibility
DTX-LT, DTX-1200, DTX-1800
Main unit only
Dimensions (L x W x D)
4.2in x 3.0in x 1.1in (106mm x 76mm x 28mm)
Weight, nominal
0.31lb (0.14kg)
47
DTX Fiber Test Kit
Users Manual
Environmental
Operating temperature
o
o
0 C to 40 C
Storage temperature
-20 o C to +60 o C
Operating relative humidity
(% RH without condensation)
95 % (10 oC to 35 oC)
75 % (35 oC to 40 oC)
uncontrolled < 10 oC
Vibration
Random, 2 g, 5 Hz - 500 Hz
Shock
1 m drop onto all corners and faces, test cables not attached
Safety
P Conforms to relevant European Union directives.
) Listed by the Canadian Standards Association
Altitude
Operating: 3000 m
EMC
EN 61326-1
48
DTX-FTK Specifications
Optical
Input/output (meter/source)
connectors
SC/SC
Power meter type
InGaAs detector
Power meter calibrated wavelengths
850 nm, 1310 nm, 1550 nm
Power measurement range
0 to -60 dbm (1310 nm and 1550 nm)
0 to -52 dbm (850 nm)
Power measurement uncertainty1
± 0.25 dB
Measurement linearity
±0.1dB2 (1310 nm and 1550 nm)
±0.2 db3 (850 nm)
Display resolution, dB or dBm
0.01
1, 0.1, 0.01, 0.001, 0.0001
µW >400, >40, >4, >0.4, ±0.4
Display update rate
1 reading per second
Re-calibration period
1 year
1.
Under the following conditions: Power level -20 dBm, continuous wave
•
•
•
at 850 nm: 62.5/125 µm fiber with 0.275 NA
at 1310 nm and 1550 nm: 9/125 µm
Ambient temperature: 23 C ± 5
2.
Linearity for 1310 nm and 1550 nm: between 0 dBm and -55 dBm: ± 0.1 dB < -55 dBm: ± 0.2 dB.
3.
Linearity for 850 dBm: between 0 dBm and -45 dBm: ±0.2 dB < -45 dBm: ±0.25 dB
49
DTX Fiber Test Kit
Users Manual
SimpliFiber 850/1300 Source
General
Dimensions (L x W x D)
15.3 x 8.9 x 3.2 cm (6.0 x 3.5 x 1.3 in)
Weight, nominal
0.18kg (0.4 lb)
Battery life (2 replaceable AA
alkaline batteries)
850/1300 Source: 10 – 50 hours typical
optional 1310 Source: 20 – 100 hours typical
optional 1550 Source: 20 –100 hours typical
Environmental
Temperature range, operating
0 to +45 C
Temperature range, storage
-20 to +60 C
Humidity range, operating
10 to 90% RH, non-condensing
Humidity range, storage
0 to 95% RH, non-condensing
Certifications
P Conforms to relevant European Union directives.
) Listed by the Canadian Standards Association
50
DTX-FTK Specifications
Optical
Connector
SC
Emitter type
850/1300 Source: LEDs
optional 1310 Source: laser
optional 1550 Source: laser
Emitter wavelengths
850/1300 Source: 850 and 1300 nm
optional 1310 Source: laser
optional 1550 Source: laser
Power output (minimum)
850/1300 Source: -20 dBm
optional 1310 Source: -10 dBm
optional 1550 Source: -10 dBm
Power output stability (8 hours)
+/- 0.25 dB at 23 C
51
DTX Fiber Test Kit
Users Manual
52
Index
—A—
accessories, 43
Autotest
results, viewing, 26
running in Far End Source Mode,
24
—B—
battery replacement, 8
—C—
calibration
DTX-FOM, 4
SimpliFiber Source, 8
care and safety
DTX-FOM, 4
SimpliFiber Source, 7
cleaning connectors and adapters, 9
connection diagrams
connecting to fiber-under-test, 21
reference connections, 20
—D—
DTX CableAnalyzer
connection diagrams, 20, 21, 22
fiber settings, configuring, 11
inserting/removing the DTX-FOM,
11
loss test, 24
power test, 29
setting the reference, 18
DTX Fiber Optic Meter
calibration and service, 4
care and safety information, 4
installing and removing, 11
DTX Fiber Test Kit
description, 1
options and accessories, 43
package contents, 2
registering products, 2
specifications, 47
—F—
fiber settings, configuring, 11
Fluke Networks
contact numbers, 3
Knowledge Base, 2
—K—
Knowledge Base, 2
53
DTX Fiber Test Kit
Users Manual
—L—
registration, 2
loss test
Autotest mode, 24
results, saving, 28
single-test mode, 28
—S—
—M—
mandrels, 16
—P—
patch cords,testing and replacing, 10,
33
power test
connection diagrams, 22
results, saving, 30
results, viewing, 30
running, 29
—R—
reference values
connection diagram, 18, 20
importance of setting, 15
mandrels, 16
setting, 18
54
safety precautions
DTX-FOM, 4
SimpliFiber Source, 7
SimpliFiber Source
batteries, replacing, 8
calibration and service, 8
care and safety information, 7
connecting to fiber, 21
front panel, 4
single tests
loss, 28
power, 29
specifications, 47
—T—
test methods, 14, 41
tests
loss autotest, 24
loss single test, 28
power, 29
setting a reference value, 15
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