fiber test kit · • dtx fiber optic meter (dtx-fom2) • simplifiber pro 850/1300 led optical...

PN 3471776June 2009, Rev. 1 6/10©2009, 2010 Fluke Corporation. All rights reserved. Printed in USA.All product names are trademarks of their respective companies.

DTX-FTKFiber Test Kit

Users Manual

LIMITED WARRANTY AND LIMITATION OF LIABILITYEach Fluke Networks product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period for the mainframe is one year and begins on the date of purchase. Parts, accessories, product repairs and services are warranted for 90 days, unless otherwise stated. Ni-Cad, Ni-MH and Li-Ion batteries, cables or other peripherals are all considered parts or accessories. The warranty extends only to the original buyer or end user customer of a Fluke Networks authorized reseller, and does not apply to any product which, in Fluke Networks’ opinion, has been misused, abused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke Networks warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke Networks does not warrant that software will be error free or operate without interruption.Fluke Networks authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Networks. Warranty support is available only if product is purchased through a Fluke Networks authorized sales outlet or Buyer has paid the applicable international price. Fluke Networks reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another country.Fluke Networks warranty obligation is limited, at Fluke Networks option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke Networks authorized service center within the warranty period.To obtain warranty service, contact your nearest Fluke Networks authorized service center to obtain return authorization information, then send the product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB destination). Fluke Networks assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB destination). If Fluke Networks determines that failure was caused by neglect, misuse, contamination, alteration, accident or abnormal condition of operation or handling, or normal wear and tear of mechanical components, Fluke Networks will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping point).THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE NETWORKS SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.

4/04

Fluke NetworksPO Box 777Everett, WA 98206-0777USA

i

Contents

Title PageIntroduction .......................................................................................................................................................................... 1

DTX Fiber Test Kit Features ........................................................................................................................................... 1Package Contents .......................................................................................................................................................... 2Registration .................................................................................................................................................................... 2

Additional Answers to Your Cable Testing Questions ........................................................................................................ 2Contacting Fluke Networks .................................................................................................................................................. 3The DTX Fiber Optic Meter ................................................................................................................................................... 3The SimpliFiber Pro 850/1300 Source ................................................................................................................................... 4

How to Install the Batteries in the Source ................................................................................................................... 5Auto Power-Off Function .............................................................................................................................................. 6

Safety and Maintenance Procedures ................................................................................................................................... 6How to Clean Connectors and Adapters ...................................................................................................................... 7

How to Clean Bulkhead Connectors (sources and patch panels) ......................................................................... 7How to Clean the Connector on the Meter .......................................................................................................... 8How to Clean Fiber Adapters ................................................................................................................................. 8How to Clean Connector Ends ............................................................................................................................... 8

How to Test Your Reference Test Cords ....................................................................................................................... 8Calibration and Service .................................................................................................................................................. 9

How to Set Up the DTX-FTK ................................................................................................................................................. 9

DTX-FTK Fiber Test KitUsers Manual

ii

How to Install and Remove the DTX-FOM2 .................................................................................................................. 9How to Install the Connector Adapter ......................................................................................................................... 10How to Configure the Fiber Settings ............................................................................................................................ 12Why It Is Important to Use Mandrels with an LED Source ........................................................................................... 15About the Reference ...................................................................................................................................................... 17How to Set the Reference .............................................................................................................................................. 18

How to Measure Loss ............................................................................................................................................................ 20How to Measure Loss in Autotest Mode ...................................................................................................................... 20Autotest Results ............................................................................................................................................................. 22How to Save the Autotest Results ................................................................................................................................. 24How to Measure Loss in Single Test Mode ................................................................................................................... 24How to Save the Single Test Results ............................................................................................................................. 24

How to Monitor Optical Power ............................................................................................................................................ 25Power Measurements .................................................................................................................................................... 28How to Save Power Measurements .............................................................................................................................. 29

Options and Accessories ........................................................................................................................................................ 30Specifications ......................................................................................................................................................................... 33

DTX Fiber Optic Meter (DTX-FOM2) ............................................................................................................................. 33SimpliFiber Pro 850/1300 Source .................................................................................................................................. 35

Appendix A: How to Make Sure that Patch Cords are Good .............................................................................................. 37Appendix B: Test Method Reference Tables ........................................................................................................................ 39Index ...................................................................................................................................................................................... 41

iii

List of Figures

Figure Title Page

1. The DTX-FOM2 ..................................................................................................................... 32. The SimpliFiber Pro 850/1300 Source .................................................................................. 43. How to Install the Batteries in the Source .......................................................................... 54. How to Install and Remove the DTX-FOM2........................................................................ 95. Adapters for SC, ST, LC, and FC Connectors........................................................................ 106. How to Install the Connector Adapter................................................................................ 117. How to Wrap a Patch Cord Around a Mandrel .................................................................. 168. Reference Connections for Far End Source Mode (Method B).......................................... 199. Loss Measurement Connections (Method B) ...................................................................... 2110. Autotest Summary Results Screen ....................................................................................... 2211. Details from the Autotest Results ....................................................................................... 2312. Connections for Making Power Measurements at the End of a Link ............................... 2613. Connections for Making Power Measurements at a Source.............................................. 2714. Power Meter Measurements for SINGLE TEST Mode ......................................................... 2815. Power Test Measurements for MONITOR Mode ................................................................ 2916. Connections for Doing a Test on a Reference Test Cord or Patch Cord ........................... 38


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1

DTX Fiber Test Kit

Introduction

The DTX Fiber Test Kit is two instruments: the DTX Fiber Optic Meter (DTX-FOM2) and the SimpliFiber Pro™ 850/1300 Source. These instruments let you use a DTX CableAnalyzer™ to measure optical power and insertion loss in fiber optic cabling.

The DTX-FOM2 is an optical power meter that you install in a DTX CableAnalyzer main unit to make optical power measurements at 850 nm, 1300 nm, 1310 nm, and 1550 nm.

The SimpliFiber Pro 850/1300 is an optical light source that uses LEDs. It supplies light at 850 nm and 1300 nm. To do tests at 1310 nm or 1550 nm wavelengths, use the optional SimpliFiber Pro 1310/1550 laser source.

DTX Fiber Test Kit Features

The DTX Fiber Test Kit (the DTX-FTK) lets you do these tasks:

• Lets you make sure that cabling is correctly installed. You can make loss measurements that the tester can compare with a user-defined standard.

• Helps you do troubleshooting procedures on fiber optic devices. You can measure the power from an optical source and compare the measurement against the specifications.

• Lets you save and organize test records in internal memory or on a Secure Digital Multimedia Card (SD MMC).

• Lets you manage test results on a PC and make printed reports (using the LinkWare software supplied).

http://www.flukenetworks.com



2

Package Contents

The DTX-FTK includes the items in the list below. If an item is damaged or missing, tell the dealer.

• DTX Fiber Optic Meter (DTX-FOM2)

• SimpliFiber Pro 850/1300 LED optical source

• Simplex test reference cord set, 62.5 µm, SC/SC, (includes one mandrel for 62.5 µm fiber cord)

• Simplex test reference cord set, 50 µm, SC/SC (includes one mandrel for 50 µm fiber cord)

• Users Manual

• LinkWare Software CD

• Registration card

A DTX-FOM2 sold separately includes these items:

• DTX Fiber Optic Meter (DTX-FOM2)

• Simplex test reference cord set, 62.5 µm, SC/SC, (includes one mandrel for 62.5 µm fiber cord)

• Simplex test reference cord set, 50 µm, SC/SC (includes one mandrel for 50 µm fiber cord)

• Users Manual

• LinkWare Software CD

• Registration card

Registration

When you register your product with Fluke Networks you get access to valuable information on updates, troubleshooting procedures, and other support services.

To register online, go to www.flukenetworks.com/registration. Or, send the registration card that came with this product to Fluke Networks.

Additional Answers to Your Cable Testing Questions

The Fluke Networks Knowledge Base gives answers to typical questions about Fluke Networks products and includes information on technology and procedures for network and cable tests. To see the Knowledge Base, go to www.flukenetworks.com, then click Customer Support > Knowledge Base.


http://www.flukenetworks.com/registration

Contacting Fluke Networks

3

Contacting Fluke Networks

www.flukenetworks.com

[email protected]

+1-425-446-4519

• Australia: 61 (2) 8850-3333 or 61 (3) 9329 0244

• Beijing: 86 (10) 6512-3435

• Brazil: 11 3759 7600

• Canada: 1-800-363-5853

• Europe: +31-(0) 40 2675 600

• Hong Kong: 852 2721-3228

• Japan: 03-6714-3117

• Korea: 82 2 539-6311

• Singapore: +65-6799-5566

• Taiwan: (886) 2-227-83199

• USA: 1-800-283-5853

Visit our website for a complete list of phone numbers.

The DTX Fiber Optic Meter

The DTX Fiber Optic Meter (DTX-FOM2) lets you use a DTX CableAnalyzer tester to measure optical power.

Figure 1 shows the DTX-FOM2. The meter has an input port that receives optical signals for loss and power measurements. The port has an adapter that you can remove. The standard adapter is for SC connectors. Other adapters are available. See page 10.

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Figure 1. The DTX-FOM2



4

The SimpliFiber Pro 850/1300 Source

The SimpliFiber Pro 850/1300 Source supplies optical power for measurements of power loss in fiber cables. Figure 2 shows the source.

A X: On/off key.

B A: Sets the source to auto wavelength mode. The AUTO LED is on. The wavelength LEDs blink when the meter changes wavelengths automatically. To set the output to one wavelength, press Z.

WCaution

Set the source to one wavelength when you use the source with the DTX-FOM2. If the source changes wavelengths automatically during a test, the measurements that the DTX-FOM2 makes will not be reliable.

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Figure 2. The SimpliFiber Pro 850/1300 Source

The SimpliFiber Pro 850/1300 Source

5

C M: Changes the output of the meter to a continuous wave or a 2 kHz modulated output signal. The CW/2 kHz LED is on if the output is continuous. It blinks if the output is modulated. Use the 2 kHz modulated mode to find fibers with a fiber locator.

WCaution

Do not use the 2 kHz modulated mode with the DTX-FOM2 to make loss measurements. If you do, the measurements will be incorrect.

Also enables or disables the auto power-off function. See page 6.

D I: Selects FindFiber™ mode. The ID LED is on if the source is in FindFiber mode. You can use this mode with the SimpliFiber Pro power meter. You cannot use this mode with the DTX-FOM2.

E The LOW BATTERY LED blinks continuously if the battery is low. The LED blinks at intervals if auto power-off is disabled. See page 6.

F Output port with SC adapter.

How to Install the Batteries in the Source

AAIEC LR6

NEDA 15A

The SimpliFiber Pro Source uses two AA alkaline batteries. See Figure 3. When the LOW BATTERY LED comes on, replace the batteries.

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Figure 3. How to Install the Batteries in the Source


6

Auto Power-Off Function

If you enable the auto power-off function, the source turns off after 30 minutes if you do not press a key.

To disable or enable the auto power-off function, hold down M for 4 seconds.

• If the auto power-off function is enabled, all LEDs turn on for 3 seconds.

• If the auto power-off function is disabled, all LEDs blink for 3 seconds and the LOW BATTERY LED blinks at intervals.

Safety and Maintenance Procedures

WWarning: Class 1 Laser Product*

To prevent possible exposure to hazardous, invisible LED radiation and to prevent damage to your eyes:

• Do not look directly into the optical output connectors. Some sources emit invisible radiation that can cause permanent damage to your eyes.

• Do not turn on the source unless a fiber is connected to the port.

• Do not open the case. There are no parts in the case that the user can repair or replace.

• Do not make modifications to the source.

• Do not use magnifying devices on the source output.

• Use only approved connectors and adapters.

• Do not use controls, adjustments, or procedures that are not documented or approved by Fluke Networks.

• Use of controls, adjustments, or procedures that are not given in this manual can cause exposure to hazardous radiation.

WCaution

To prevent damage to the fiber connectors, to prevent data loss, and to get test results that are reliable:

• Use the correct procedures to clean and inspect all fiber connectors on cables and patch cords before you make connections. If you do not clean the connectors or if you use incorrect procedures, you will get unreliable results and can cause permanent damage to the connectors. See page 7.

Safety and Maintenance Procedures

7

• At regular intervals, clean the connectors on the fiber optic meter and the source. See page 7.

• At intervals, use a fiber microscope to do an inspection on the meter and source connectors. Fiber microscopes are available from Fluke Networks. If an endface is damaged, get information on service from Fluke Networks.

• Turn on the SimpliFiber Pro source for a minimum of 5 minutes before you set the reference or do a test.

• Put protective caps on all connectors that you do not use.

• Do not connect the source to a network that is on. If you do this, you can cause problems in the network.

• Clean the case with a soft cloth and a weak soap solution. Do not use abrasive materials or solvents.

How to Clean Connectors and Adapters

Always clean and do an inspection on fiber connectors before you make connections. Use fiber optic solvent and optical-grade wipers or swabs to clean connectors.

How to Clean Bulkhead Connectors (sources and patch panels)

1 Touch the tip of an optical-grade solvent pen or swab soaked in solvent to a dry, optical-grade wiper.

2 Touch a new, dry swab to the solvent on the wiper.

3 Push the swab into the connector, twist it around 3 to 5 times against the endface, then discard the swab.

4 Twist a dry swab around in the connector 3 to 5 times.

5 Before you make a connection, use a fiber microscope (for example, the Fluke Networks FiberInspector™ Video Microscope) to do an inspection on the connector.


8

How to Clean the Connector on the Meter

1 Remove the connector adapter to get access to the photodiode lens (see Figure 6).

2 Do steps 1 and 2 above to put solvent on a swab.

3 Twist the swab around against the lens 3 to 5 times, then twist a dry swab around against the lens 3 to 5 times.

How to Clean Fiber Adapters

At intervals, clean all fiber adapters with a swab and fiber optic solvent. Use a dry swab to remove the solvent from the adapter.

How to Clean Connector Ends

1 Touch the tip of an optical-grade solvent pen or swab soaked in solvent to a dry, optical-grade wiper.

2 Rub the connector endface across the solvent on the wiper, then rub it two times across the dry area of the wiper.

Note

A different procedure is necessary to clean some connector styles (for example, VF-45).

Always put protective caps on connectors you do no use. At intervals, clean the caps with a swab or wipers and fiber optic solvent.

How to Test Your Test Reference Cords

Do a test on your test reference cords each time you start to use them. To do this, use a test reference cord that you know is good to set a reference and do an Autotest on each cord. For instructions, see Appendix A.

If you must replace your test reference cords, select replacements that have these properties:

• They meet the requirements of ISO/IEC 14763-3.

• Core and cladding dimensions: the same dimensions as the optical fiber in the link under test

• Connector polish: PC or UPC. Use APC only for tests on cabling with APC connectors.

• Test reference cord length: maximum 5 m

To get the best performance from your testers, get replacement cords from Fluke Networks.

How to Set Up the DTX-FTK

9

Calibration and Service

Each year, send the DTX-FOM2 and the SimpliFiber Pro Source to a service center for calibration. An approved Fluke Networks Service Center can tell you how to get the meter and source calibrated.


To configure the DTX-FTK for a test:

• Install the DTX-FOM2 in the DTX tester

• Configure the Fiber Loss settings

• Set the reference

• Connect the tester and source to the fiber link

How to Install and Remove the DTX-FOM2

Figure 4 shows you how to install and remove the DTX-FOM2.

WCaution

Turn off the DTX CableAnalyzer tester before you install or remove the DTX-FOM2.

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Figure 4. How to Install and Remove the DTX-FOM2


10

How to Install the Connector Adapter

You can change the connector adapter on the input of the DTX-FOM2 to make connections to SC, ST, LC, and FC fiber connectors (Figure 5). To see if other adapters are available, go to the Fluke Networks web site.

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Figure 5. Adapters for SC, ST, LC, and FC Connectors

WCaution

• Put protective caps on all connectors that you do not use.

• Keep additional connector adapters in the containers that are supplied.

• Do not touch the photodiode lens (see Figure 6).

• Do not tighten the adapter too much or use tools to tighten the adapter.

To install a connector adapter, refer to Figure 6.


11

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Figure 6. How to Install the Connector Adapter

Put the key into the slot before you turn the nut.

Slot

Key

WCaution

Do not touch the photodiode lens.

You cannot see all the threads.

Turn the connector until you can see all the threads.

Keep additional connector adapters in the containers that are supplied


12

How to Configure the Fiber Settings

WWarning*

Read the safety information on page 6 before you use SimpliFiber Pro Source and the DTX-FOM2.

1 Turn on the DTX CableAnalyzer tester.

2 Turn the rotary switch to SETUP.

3 Select Fiber Loss, then press H to see the Fiber Loss menu.

Refer to Table 1 for descriptions of the settings on this menu.

4 Select settings for the parameters on the Fiber Loss menu.

The menu has three tabs. Use BC to see other tabs.

Table 1. Settings for Fiber

Select an applicable test limit for the cabling. The tester compares the test results to the test limit to give a PASS or FAIL result. Selecting Custom lets you make a test limit. See the DTX Technical Reference Handbook for instructions.

Select the type of fiber used in the cabling. Selecting Custom lets you make a fiber type. See the DTX Technical Reference Handbook for instructions.

Set to Far End Source. The other settings do not apply to the DTX-FTK.

Loss Tests

Setting Description

Test Limit

Fiber Type

Remote End Setup


13

Table 1. Settings for Fiber Loss Tests (continued)

This setting does not apply to Far End Source mode.

These settings do not apply to Far End Source mode.

Select the type of connector used in the cabling. This setting has an effect only on the diagrams that the tester shows for connections when you set the reference. If the connector type used in the cabling is not in the list, select General.

-continued-

Setting Description

Bi-Directional

Number of AdaptersNumber of Splices

Connector Type


14

Table 1. Setting for Fiber Loss Tests (continued)

Loss results include the connections added after you set the reference. The reference and test connections can remove some or all the connections from the results. The Test Method refers to the number of connections included:

2 Jumper: Loss results include one connection at one end of the link.

1 Jumper: Loss results include the connections at the two ends of the link. The reference and test connections that this manual shows give 1Jumper results. For instructions on how to make connections for the other methods, see the DTX Technical Reference Handbook or the Fluke Networks Knowledge Base.

3 Jumper: Loss results do not include the connections at the ends of the link. The tester measures only the loss of the fiber.

Different standards have different names for the three test methods. See Appendix A. The DTX Technical Reference Handbook gives more information on test methods.

This setting does not have an effect on loss results. The tester saves this setting with the results only to record which method you used.

This setting does not apply to Far End Source mode.

Setting Description

Test Method

Index of Ref. Source (n) > Default or User Defined


15

Why It Is Important to Use Mandrels with an LED Source

Fluke Networks recommends that you use mandrels when you use an LED source to set the reference and do tests.

The mandrels are mode filters. They remove the unwanted, high-order modes that are emitted from LED sources.

The high-order modes do not move in straight lines through the fiber. Because they move on a longer path, their power decreases more than the power of other modes. If you do not use a mandrel, the power from high-order modes is included in the reference value because the test reference cord is short. But when you do a test on a fiber, your loss measurements will be unusually high because of the loss of the high-order modes.

Also, changes in the position of the fiber increase the loss of high-order modes more than other modes. This can cause larger changes in measurement results when you do a test again on the same fiber.

When you use a mandrel to remove the high-order modes, your test results are more reliable and consistent.

Fluke Networks supplies mandrels that comply with ANSI/TIA-568-C standards. The mandrels are for 3 mm test reference cords. Table 2 gives some information about mandrel requirements for TIA standards.

Figure 7 shows how to wrap the fiber around a mandrel.

Put the mandrels on the fiber near the source, as Figures 7 and 8 show. When you set the reference, the DTX tester shows a diagram with loop where you put the mandrel.


16

Table 2. ANSI/TIA-568-C Mandrel Requirements

50 µm ANSI/TIA-568-C.0 6.4.2.1 5 25 mm (1.0 in) 22 mm (0.9 in)

62.5 µm ANSI/TIA-568-C.0 6.4.2.1 5 20 mm (0.8 in) 17 mm (0.7 in)

Wrap 5 timesin grooves

Place top wrap in groove underretainer

Right:

no bendsat retainer Wrong:

bends atretainer

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Figure 7. How to Wrap a Patch Cord Around a Mandrel

Fiber core size Standard

Number of Wraps Around Mandrel

Mandrel Diameter for 250 µm Buffered Fiber

Mandrel Diameter for 3 mm (0.12 in) Jacketed Cable


17

About the Reference

Accurate measurements of optical power and signal loss are necessary when you install and do the maintenance on fiber optic cabling. To make accurate measurements, you first must set the reference.

The reference is the baseline level of power for insertion loss measurements. When you set the reference frequently, small changes in the source power and the quality of the connections have a much smaller effect on measurements.

Reference values will not change by more than a few tenths of a dB each time you set the reference if your connections and test reference cords are good. If you see larger changes, it can mean that there is a problem with the cords or connections. To do a test on your test reference cords, see Appendix A.

For the most reliable test results, set the reference at these times:

• At the start of each day

• When you start to use a different SimpliFiber Source

• When you connect a test reference cord to the source

• When the tester gives a warning that the reference value is too old

• When you see a negative loss measurement

When you change the Test Method (page 14) the DTX tester will not let you do a test until you set the reference.


18

How to Set the Reference

WWarning*

Read the safety information on page 6 before you use the SimpliFiber Pro Source and the DTX-FOM2.

1 Make sure that the tester and the source are off.

2 Make the connections that Figure 8 shows. Wind the test reference cord around the mandrel (see Figure 7).

3 Turn on the tester and the source.

Note

Wait a minimum of 5 minutes before you set the reference. Set the reference only after the meter and source are at an ambient temperature between 10 °C and 40 °C (50 °F and 140 oF).

4 On the SimpliFiber Pro Source:

a Make sure that the source is in the Auto mode. If the Auto LED is not on, press A.

b Press Z to select a wavelength (850 nm or 1300 nm).

5 On the tester, turn the rotary switch to SPECIAL FUNCTIONS. Highlight Set Reference, then press H.

The Set Reference screen shows a reference diagram.

6 Make sure that the diagram shows your connections. If it does not, change the Connector Type or Test Method setting in the Fiber Loss settings (see pages 13 and 14).

7 Press P. The tester sets the reference and shows the value on the View Reference screen.

8 Press K(OK).


19

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Figure 8. Reference Connections for Far End Source Mode (1 Jumper method)

DTX CableAnalyzer tester

Test reference cord with the same fiber and connectors as the cabling

you will do tests on

Mandrel*

* Use a mandrel only when you use an LED source to do tests on multimode fiber

SimpliFiber Pro source

WCaution

Do not disconnect the output after you set the reference


20

How to Measure Loss

The loss measurement shows the difference between the reference power measurement and the power measured through the link under test.

You can make loss measurements in Autotest mode or in Single Test mode. Use Autotest mode in most situations.

How to Measure Loss in Autotest Mode

WCaution

If you disconnected the test reference cord from the output of the source since the reference was set, you must set the reference again to make sure that your test results are reliable. See “Setting the Reference” for instructions.

1 Make the connections that Figure 9 shows.

2 Turn on the tester and the source.

Note

Wait a minimum of 5 minutes before you do a test. Wait more time if the DTX-FOM2 is above or below room temperature.

3 On the SimpliFiber Pro Source:

a Press Z to select a wavelength (850 nm or 1300 nm).

b Make sure that the source is in Auto mode. If the Auto LED is not on, press A.

4 On the tester, turn the rotary switch to AUTOTEST.

5 Press P. Figure 10 shows the Autotest results.

How to Measure Loss

21

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Figure 9. Loss Measurement Connections (1 Jumper method)


WCaution

Do not disconnect the output after setting the reference

Mandrel*

Test reference cord

Second test reference cord Fiber link




22

Autotest Results

When the Autotest is completed, the tester shows the Summary screen (Figure 10). To see more information about the test, press H. See Figure 11.

Figure 10. Autotest Summary Results Screen

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A The overall result for the fiber (PASS or FAIL).

B E: PASS

F: FAIL

i: Because the test limit uses length and an attenuation coefficient to calculate loss, the results do not show a PASS or FAIL result. This is because the tester must have a length measurement to calculate loss. The tester cannot measure length in Far End Source mode.

2

1

How to Measure Loss

23

Figure 11. Details from the Autotest Results

bab04f.eps

A The overall result for the loss measurement (PASS or FAIL).

Note

If the test limit uses length and an attenuation coefficient to calculate loss, the results do not show a PASS or FAIL result, a limit, or a margin. This is because the tester must have a length measurement to calculate loss. The tester cannot measure length in Far End Source mode.

B The loss measurement for fiber. If the value for Loss is negative, set the reference again and do the test again.

C The maximum loss allowed by the selected test limit.

D The difference between the limit and the measured loss. The Margin is negative if the value for Loss is more than the limit.

E Press LView Ref. to see the reference information used for the test.

F A meter that shows the loss measurement. Results that are in the red area cause the test to fail. A result that fails also shows a negative margin and a loss measurement that is more than the limit.

1

2

3

4

6

5


24

How to Save the Autotest Results

To save the loss results, press N. Enter a name for the results, then press N again.

How to Measure Loss in Single Test Mode

To do a loss test in Single Test mode:

1 Do steps 1 through 3 under “How to Do a Loss Test in Autotest Mode” on page 20.

2 On the tester, turn the rotary switch to SINGLE TEST.

3 Press P. Figure 11 shows the loss test results.

How to Save the Single Test Results

To save the loss results, press N. Enter a name for the results, then press N again.

How to Monitor Optical Power

25


The power meter function lets you monitor the power from optical sources.

The tester can monitor power in two modes:

• SINGLE TEST mode: Makes one power measurement at 850 nm, 1300 nm, 1310 nm or 1550 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, 1300 nm, 1310 nm or 1550 nm. If you monitor power in this mode, you cannot save the power measurement.

To monitor optical power:

1 To monitor optical power at the end of a link, make the connections that Figure 12 shows. To monitor power at a connection, make the connections shown in Figure 13.

2 Turn on the source and do these steps:

a Press A.

b Press Z to select a wavelength (850 nm or 1300 nm).

3 Turn on the tester, and do one of these steps:

• Turn the rotary switch to SINGLE TEST. Select Power, then press P.

OR

• Turn the rotary switch to MONITOR. Select Power Meter, then press P.

4 When the test is completed, the tester shows the power measurements on the Power Meter screen:

• If you did this test in SINGLE TEST mode, the tester shows the Power Meter screen shown in Figure 14.

• If you did this test in MONITOR mode, the tester shows the Power Meter screen shown in Figure 15.


26

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Figure 12. Connections for Making Power Measurements at the End of a Link

Fiber link


SimpliFiber Pro source or other optical power source


27

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Figure 13. Connections for Making Power Measurements at a Source


SimpliFiber Pro source or other optical power source


28

Power Measurements

Figures 14 and 15 show power meter measurements for SINGLE TEST and MONITOR modes.

Figure 14. Power Meter Measurements for SINGLE TEST Mode

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A The meter shows the power measurement for the specified wavelength.

B The power measurement in decibels (dBm) or microwatts (µW).

C Press JµW to see the power measurement in decibels or microwatts.

1 2

3


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Figure 15. Power Test Measurements for MONITOR Mode

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A The meter shows the power measurement. The tester makes the measurement continuously until you press I.

B Press JµW to see the power measurement in decibels (dBm) or microwatts (µW).

C Press LChange V to change the wavelength. If the source is in auto wavelength mode, the meter will change back to the wavelength that the source transmits.

1

2 3


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How to Save Power MeasurementsYou can save a power measurement from a power meter test you did in SINGLE TEST mode. To save the measurement, press N.

In MONITOR mode, the tester makes power measurements continuously. Because of this, you cannot save power measurements you make in MONITOR mode.

Options and Accessories

For a list of all options and accessories, go to the Fluke Networks website at www.flukenetworks.com. You can get options and accessories from a Fluke Networks dealer.


Specifications

31

Specifications

DTX Fiber Optic Meter (DTX-FOM2)

Compatibility DTX-LT, DTX-1200, DTX-1800, DTX-CLT (main unit only)

Dimensions 4.2 in x 3.0 in x 1.1 in (106 mm x 76 mm x 28 mm)

Weight, nominal 0.31 lb (0.14 kg)

Operating temperature 0oC to 40oC

Storage temperature -20oC to +60oC

Operating relative humidity (% RH without condensation)

95% (10oC to 35oC) 75% (35oC to 40oC) uncontrolled < 10oC

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

;Conforms to relevant Australian standards

) Listed by the Canadian Standards Association

Altitude Operating: 3000 m

EMC EN 61326-1


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Input connector Removable adapter for SC connectors

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 dBmµW >400, >40, >4, >0.4, ±0.4

0.01 1, 0.1, 0.01, 0.001, 0.0001

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: 23oC ±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.

Specifications

33

SimpliFiber Pro 850/1300 Source

Emitter type LED

Central wavelength 850 nm, 1300 nm

Wavelength accuracy 850 nm: +30 nm/-10 nm 1300 nm: ±20 nm

Spectral width (FWHM) 850 nm: 50 nm (typical) 1300 nm: 135 nm (typical)

Minimum output power 850/1300 nm: ≥ -20 dBm

Power output stability1 ±0.1 dB over 8 hours

Auto dual-wavelength switching Yes. Can be enabled or disabled by the user.

Optical output connector Fixed SC

Modes CW (continuous wave), 2 kHz modulated, auto-wavelength

Power requirement 2 AA alkaline batteries

Vibration Random, 2 g, 5 Hz - 500 Hz

Shock 1 m drop onto all corners and faces, test cables not attached

Battery life2 40 hours (typical)

1. 23°C ±2°C, after 5 minutes of warm-up time.

2. In auto-wavelength mode. Battery life depends on the condition and type of batteries used. Fluke Networks recommends alkaline batteries.


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Automatic power off 30 minutes (can be disabled by the user)

Low battery warning LED blinks

Safety P Conforms to relevant European Union directives

;Conforms to relevant Australian standards

) Listed by the Canadian Standards Association

Size 14.2 cm x 8.1 cm x 4.1 cm (5.6 in x 3.2 in x 1.6 in)

Weight 278 g (9.8 oz)

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Appendix A: How to Make Sure that Test Reference Cords are Good

Before you start to do tests, always make sure that your test reference cords are good. This appendix shows how to do a test on a test reference cords. You can also do the test on other patch cords that you think are defective.

To do a test on a test reference cord or a patch cord:

1 Get a test reference cord that you know is good.

2 Clean both ends of the test reference cord and the cord you will do a test on. See "How to Clean Connectors and Adapters" on page 7 for instructions.

Set the reference. See "How to Set the Reference" on page 18 for instructions.

3 Connect a test reference cord or patch cord for the test. See Figure 16.

4 On the tester, turn the rotary switch to AUTOTEST. Then, press P.

5 Look at the results and make sure that the loss measurement is no more than these limits:

• Multimode cord, 850 nm: 0.11 dB

• Multimode cord, 1300 nm: 0.10 dB

• Singlemode cord, 1310 nm and 1550 nm: 0.20 dB

If loss is higher than this value, clean the ends of the cord and do the test again. If the loss is too high again, the cord is defective. Replace the cord.


36

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Figure 16. Connections for Doing a Test on a Test Reference Cord or Patch Cord

Test reference cord you use to set the

reference

*Mandrel

Test reference cord or patch cord under test




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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 industry standards for the three fiber test methods.

Table B-1. Test Method Names

1 connection 2 Jumper Method A Method A.2 Method 1 Method A2

2 connections 1 Jumper Method B Method A.1 Method 2 Method A1

None 3 Jumper Method C Method A.3 Method 3 Method A3

Link End ConnectionsIncluded in Loss Results

ThisManual

TIA/EIA-526-14A(multi-mode)

TIA/EIA-526-7(single mode)

IEC 61280-4-1(multi-mode)

IEC 61280-4-2(single mode)


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39

Index

Numerics1, 2, 3 Jumper, 14

–A–accessories

standard, 2APC connectors, 8auto wavelength mode, 4Autotest

results, 22test, 20

–B–battery replacement, 5

–C–calibration, 9calibration and service, 9

cautions, 6cleaning

case, 7connectors and adapters, 7

connector adapterillustration of SC, ST, LC, and FC,

10installation, 10

–D–DTX Fiber Optic Meter

cleaning the connector, 8installing and removing, 9installing the connector

adapter, 10

–F–FC connector adapter, 10fiber settings, 12

Fluke Networkscontact numbers, 3Knowledge Base, 2

–K–keys on the source, 4Knowledge Base, 2

–L–LC connector adapter, 10loss test

Autotest mode, 20results, 22Single Test mode, 24

–M–mandrels, 15


40

–P–power test, 25

results, 28

–R–reference

connection diagram, 19how to set, 18importance of setting, 17mandrels, 15

registration, 2

–S–safety information, 6SC connector adapter, 10settings, 12SimpliFiber source

auto power-off function, 6auto wavelength mode, 4batteries, 5keys and LEDs, 4

specifications, 31ST connector adapter, 10

–T–test methods, 14, 37test reference cords, testing and

replacing, 8tests

loss (Autotest), 20loss (Single Test), 24power, 25setting a reference value, 17

fiber test kit · • dtx fiber optic meter (dtx-fom2) • simplifiber pro 850/1300 led optical...

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