Fluke DSP-FTA420 User manual

TM
DSP-FTA420/30/40
Fiber Test Adapter
Users Manual
English
PN 1570398
July 2000
© 2000 Fluke Networks. All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.
Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
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LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship
under normal use and service. The warranty period is one year and begins on the date of
shipment. Parts, product repairs, and services are warranted for 90 days. This warranty
extends only to the original buyer or end-user customer of a Fluke authorized reseller,
and does not apply to fuses, disposable batteries, or to any product which, in Fluke’s
opinion, has been misused, altered, neglected, contaminated, or damaged by accident or
abnormal conditions of operation or handling. Fluke 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 does not warrant that software will
be error free or operate without interruption.
Fluke 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. Warranty support is available only if product is purchased through a
Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke
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’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price,
free of charge repair, or replacement of a defective product which is returned to a Fluke
authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to ob-
tain return authorization information, then send the product to that service center, with a
description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke
assumes no risk for damage in transit. Following warranty repair, the product will be
returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that
failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal
condition of operation or handling, including overvoltage failures caused by use outside
the product’s specified rating, or normal wear and tear of mechanical components, Fluke
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 Ship-
ping 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 OF MERCHANTABILITY OR FITNESS FOR A PAR-
TICULAR PURPOSE. FLUKE 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 War-
ranty 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 provi-
sion. Fluke Networks
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
11/99

i
Table of Contents
Title Page
Introduction.......................................................................................... 1
Unpacking ............................................................................................ 2
Safety Information................................................................................ 3
Fiber Test Adapter Features ................................................................. 4
Getting Started...................................................................................... 5
Cleaning the Fiber Connections ....................................................... 6
Verifying Operation.......................................................................... 6
Summary of Fiber Test Settings ........................................................... 8
Setting Up for Fiber Tests .................................................................... 9
Selecting a Test Standard and Fiber Type........................................ 9
Setting the Remote End Configuration............................................. 10
Selecting the Adapter Type .............................................................. 10
Setting the Number of Adapters and Splices.................................... 11
Setting a Reference........................................................................... 11
Setting a Reference for Smart Remote Mode ................................... 12
Setting a Reference for Loopback Mode.......................................... 14
Setting a Reference for Far End Source Mode ................................. 15
Changing the Index of Refraction..................................................... 16
Running an Autotest............................................................................. 16
Saving Autotest Results........................................................................ 21
Autotest Results for Smart Remote Mode............................................ 22
Pass/Fail and Headroom Results for Smart Remote Mode............... 22
Loss for Smart Remote Mode........................................................... 22
Length Results for Smart Remote Mode .......................................... 24
Bi-Directional Testing.......................................................................... 25
Swapping Connections..................................................................... 25
Bi-Directional Autotest Results........................................................ 25
Autotest Results for Loopback Mode................................................... 26
Pass/Fail and Headroom Results for Loopback Mode...................... 26
Loss Results for Loopback Mode..................................................... 26
Length Results for Loopback Mode ................................................. 27

Contents (continued)
ii
Autotest Results for Far End Source Mode........................................... 28
Single Tests........................................................................................... 30
Single Tests for Smart Remote Mode............................................... 30
Single Tests for Loopback Mode...................................................... 31
Single Test for Far End Source Mode............................................... 31
Monitoring Optical Power.................................................................... 32
Using the Talk Mode ............................................................................ 34
Using the FindFiber™Feature ............................................................. 34
Configuring a Custom Fiber Test.......................................................... 38
Fiber Test Reports................................................................................. 39
Maintenance.......................................................................................... 39
Calibration ........................................................................................ 40
Repair................................................................................................ 40
Contacting Fluke Networks .................................................................. 40
Replacement Parts and Accessories...................................................... 40
Specifications........................................................................................ 42
General Specifications ...................................................................... 42
Optical Transmitter........................................................................... 42
Optical Receiver................................................................................ 43
Fiber Troubleshooting Guide................................................................ 45
Glossary................................................................................................ 47
Index

iii
List of Tables
Table Title Page
1. Settings for Testing Fiber................................................................... 8
2. Loss Results for Smart Remote Mode................................................ 23
3. Length Results for Smart Remote Mode............................................ 24
4. Loss Results for Loopback Mode ...................................................... 27
5. Length Results for Loopback Mode................................................... 27
6. Loss Results for Far End Source Mode ............................................. 29
7. Main Unit Results for the FindFiber Test (Smart Remote Mode....... 35
8. Smart Remote LED Results for the FindFiber Test ........................... 35
9. Replacement Parts and Accessories................................................... 41
10. Common Problems in Fiber Links..................................................... 46

Contents (continued)
iv

v
List of Figures
Figure Title Page
1. Standard Equipment........................................................................... 2
2. Features of the DSP-FTA4XX Fiber Test Adapter............................ 4
3. Attaching a DSP-FTA4XX................................................................ 5
4. Connections for a Self Test................................................................ 7
5. Setting a Reference for Smart Remote Mode..................................... 13
6. Setting a Reference for Loopback Testing......................................... 14
7. Setting a Reference for Far End Source Mode................................... 15
8. Test Connections for Smart Remote Mode........................................ 18
9. Test Connections for Loopback Mode............................................... 19
10. Test Connections for Far End Source Mode...................................... 20
11. Monitoring Optical Power................................................................. 33
12. Using FindFiber with a Smart Remote............................................... 36
13. Using FindFiber with a Loopback Cable........................................... 37

Contents (continued)
vi

1
Introduction
The DSP-FTA420/30/40 Fiber Test Adapters (hereafter referred to as the DSP-
FTA4XX) lets you use a DSP-4000 CableAnalyzertest tool to test and
certify fiber optic cable installations. The fiber test adapter includes the
following features:
•Autotest function measures optical power loss and length on dual-fiber
multimode (DSP-FTA420/440) and singlemode (DSP-FTA430) links.
Provides pass/fail results based on common fiber test standards.
•Includes built-in support for SFF (Small Form Factor) link testing.
•Monitors power at 850 nm, 1300 nm, 1310 nm, and 1550 nm from optical
sources, such as test equipment and optical interface cards.
•Transmits or receives light for performing quick continuity checks.
•Graphic Help screens show you how to make the proper fiber
connections.
•FindFiber™ feature helps you verify optical connectivity.
•Allows two-way voice communication over the fiber under test (using a
pair of the same model DSP-FTA4XX units and the headsets supplied with
the DSP-4000 test tool).
•Saves fiber test results for printing or uploading to a PC.
Note
When reading this manual, DSP-FTA4XXS refers to a set of two
adapters with identical model numbers.
DSP-FTA4XX refers to a single adapter. When referring to only
specific model number, that model number is given in full, e.g. DSP-
FTA420S or DSP-FTA420.

DSP-FTA420/30/40
Users Manual
2
Unpacking
The DSP-FTA4XXS Fiber Test Option Set includes the following items, which
are shown in Figure 1:
•Two DSP-FTA4XX Fiber Test Adapters
•Two ST/ST adapters
•Four SC/ST patch cords
FTA-420 – 62.5 µm multimode
FTA-430 - singlemode
FTA-440 – 50.0 µm multimode
•Two ST/ST patch cords
FTA-420 – 62.5 µm multimode
FTA-430 - singlemode
FTA-440 – 50.0 µm multimode
•DSP-FTA4XX Users Manual (not shown)
•Warranty registration card (not shown).
If anything is damaged or missing, contact the place of purchase immediately.
ST/ST Adapters (2)
ST/ST
Patch Cords (2)
DSP-FTA4XX (2)
SC/ST
Patch Cords (4)
INPUT
OUTPUT
agp14f.eps
Figure 1. Standard Equipment

Fiber Test Adapter
Safety Information
3
Safety Information
*WWarning
To avoid possible eye damage caused by hazardous
radiation:
•Never look directly into optical output connectors (see
Figure 2). Some sources produce invisible radiation
that can permanently damage your eyes.
•Do not open the case; no user-serviceable parts are
inside.
•Do not modify the source.
•Do not use magnification to view the optical outputs
without proper filtering.
•Use of controls, adjustments, or procedures not stated
herein might result in hazardous radiation exposure.
•Read the safety information given in Chapter 2 of the
DSP-4000 Users Manual .

DSP-FTA420/30/40
Users Manual
4
Fiber Test Adapter Features
Figure 2 describes the features of the DSP-FTA4XX Fiber Test Adapter.
INPUT
12
3
4
OUTPUT
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g
p11f.eps
ASC output connector. Transmits multimode or singlemode optical
signals.
BSC input connector. Receives multimode or singlemode optical
signals.
CDB60 connector and latches for attaching the DSP-FTA4XX unit
to a DSP-4000 test tool.
DSlide mechanism for locking the DSP-FTA4XX unit to a
DSP-4000 test tool or remote unit.
Figure 2. Features of the DSP-FTA4XX Fiber Test Adapter

Fiber Test Adapter
Getting Started
5
Getting Started
This section describes how to connect the DSP-FTA4XX units and verify their
operation.
Attach a DSP-FTA4XX unit to your DSP-4000 test tool, as shown in Figure 3.
Attach the matching DSP-FTA4XX unit to the DSP-4000 remote unit. The
DSP-FTA4XX units with the same model number are identical, so either one
can be attached to the remote.
Notes
The DSP-FTA4XX Fiber Test Adapters are compatible only with
DSP-4000 test tools and remote units.
Do not mix the model types of the Fiber Test Adapters at the main
and remote units. While no damage will result, the units will not
operate when mixed.
This manual assumes that you have used the DSP-4000 test tool to
test copper cable. If you need more detailed instructions about using
the DSP-4000 test tool, refer to the DSP-4000 Users Manual.
tt02f.eps
Figure 3. Attaching a DSP-FTA4XX

DSP-FTA420/30/40
Users Manual
6
Cleaning the Fiber Connections
Always clean the fiber endfaces before making connections. Use any of the
following:
•Lint-free swabs or wipes moistened with optical grade isopropyl alcohol
•Pre-moistened swabs or wipes approved for use on fiber connectors
•Cassette-style cleaning devices designed for use on fiber connectors
(follow the manufacturer’s instructions for use)
Canned air approved for use on fiber connectors is also useful for dislodging
contamination. Protect all connectors with dust caps when not in use.
Verifying Operation
Use the DSP-4000 test tool’s self-test feature to verify that the DSP-FTA4XX
units are working properly, as follows:
1. Clean all fiber connections.
2. Connect as shown in Figure 4.
3. Run the self test from the test tool’s SPECIAL FUNCTIONS mode.
4. If the self test fails, verify that your patch cords are good, clean the fiber
endfaces; then run the self test again. If it continues to fail, contact Fluke
Networks as described under "Contacting Fluke Networks".

Fiber Test Adapter
Getting Started
7
INPUT
INPUT
OFF
PRINT
MONITOR
SETUP
SPECIAL
FUNCTIONS
SINGLE
TEST
AUTO
TEST
DSP-4000
CABLE ANALYZER
TALK
EXIT
ENTER
TEST SAVE
1234
FAULT
INFO
Test tool
with fiber test
adapter
Remote
with fiber test
adapter
Adapters
Patch cords of the same type as the fiber
to be tested and SC at test tool ends
DSP-4000
SMART REMOTE
ON
OFF
PASS
TESTING
TALKING
FAIL
LOW BATTERY
TALK
OUTPUT OUTPUT
agp03f.eps
Figure 4. Connections for a Self Test

DSP-FTA420/30/40
Users Manual
8
Summary of Fiber Test Settings
Table 1 briefly describes the settings required for testing fiber links. See the
descriptions under "Setting up for Fiber Tests" for more details on each setting.
Table 1. Settings for Testing Fiber
Setting Description of Options
TEST STANDARD,
CABLE TYPE
In SETUP, select the test standard and cable type
(multimode or singlemode) that applies to the fiber
under test.
REMOTE END
CONFIGURATION
In SETUP, select Smart Remote, Loopback,
or Far End Source Mode.
Smart Remote Mode uses a pair of DSP-FTA4XX
units.
Loopback Mode uses one DSP-FTA4XX unit.
Far End Source Mode requires a separate optical
source, such as the Fluke FOS-850/1300, FS-150
multimode sources or the Fluke LS-1310/1550
laser source.
Figures 8, 9, and 10 show the three
configurations.
NUMBER OF
ADAPTERS
NUMBER OF
SPLICES
If required, in SETUP set the numbers of adapters
and splices added to each fiber path since the
reference was set.
ADAPTER TYPE In SETUP, select the type of adapter. The graphic
Help screens show how to connect the test unit
with different adapter types.
SET FIBER
REFERENCE
In SPECIAL FUNCTIONS, set the reference power
level for the power loss test. Figures 5, 6, and 7
show the reference connections for the three
remote end configurations.

Fiber Test Adapter
Setting Up for Fiber Tests
9
Setting Up for Fiber Tests
This section tells you how to configure your test tool for testing fiber links.
Selecting a Test Standard and Fiber Type
Fiber test standards define limits for losses in adapters and splices, the length
of fiber optic links, and other parameters. When you select a standard, the test
tool also prompts you to select a cable type.
Note
The DSP-4000 test tool is programmed with the standards available
when the unit leaves the factory. When new standards emerge, they
will be included with DSP-4000 software upgrades available from
Fluke. Refer to the DSP-4000 Users Manual for information on
upgrades or contact Fluke Networks on the World Wide Web at
www.flukenetworks.com.
Select a fiber test standard and cable type as follows:
1. Attach a DSP-FTA4XX unit to the DSP-4000 test tool. Turn the DSP-
4000 test tool’s rotary switch to SETUP; then press E.
2. Select the TEST STANDARD,CABLE TYPE menu item and then
press Eor the Choice softkey !.
3. Use the arrow keys to highlight the desired test standard; then press E.
4. Use the arrow keys to select the appropriate fiber type; then press E.

DSP-FTA420/30/40
Users Manual
10
Setting the Remote End Configuration
In the SETUP mode, select the remote end configuration that matches your test
configuration (usually, you will use Smart Remote Mode):
•Smart Remote Mode uses a pair of DSP-FTA4XX units: one on the
DSP-4000 main unit and one on the remote unit. (Refer to Figure 8.)
•Loopback Mode uses just one DSP-FTA4XX unit on the DSP-4000 main
unit. (Refer to Figure 9.) You can use this mode to test a single fiber or a
spool of fiber. In this case, you would connect the fiber ends to the patch
cords on DSP-FTA4XX output and input ports.
•Far End Source Mode is used with a laser source, such as the
Fluke LS-1310/1550 Laser Source, to test singlemode fiber. You can also
use Far End Source Mode with a separate multimode source, such as the
Fluke FOS-850/1300 Fiber Optic Source. (Refer to Figure 10.)
Selecting the Adapter Type
The test tool provides graphic help screens to show you how to make the
proper fiber connections for testing. Since the connections are not the same for
all types of adapters, you will want to select the adapter type to match the
connectors on the fiber links you will be testing. Selecting the adapter type will
be particularly helpful when you are testing Small Form Factor (SFF) fiber
links.
In the SETUP mode, press the $Page Down softkey until you find the
adapter type setting. To modify the setting, press E. The default setting for
the adapter type is General. Use this setting if you are not sure what type of
adapter you are testing.

Fiber Test Adapter
Setting Up for Fiber Tests
11
Setting the Number of Adapters and Splices
Some test standards use a calculated limit for the loss test. This limit includes
the number of adapters and splices in the link. In the test tool’s SETUP mode,
enter the number of adapters and number of splices added in each direction of
the fiber path since the reference was set. For example, the reference
connections in Figure 5 show one adapter in each path. When power loss is
measured as shown in Figure 8, there are three adapters in each path. You have
added two adapters in each path, so you would enter "2" for the "Number of
Adapters" count in SETUP.
The test tool uses the number of adapters and splices you enter and the
measured length of the fiber to calculate the loss limit for the link. If the
measured loss is greater than the calculated limit allows, the link fails.
The insertion loss allowed for each adapter or splice depends on the selected
test standard. If necessary, you can change the insertion loss used for adapters
or splices by creating a custom test as described on page 38.
Setting a Reference
The reference is used for power loss and delay measurements. Setting a
reference lets your DSP-4000 test tool automatically subtract out the losses or
delays due to patch cords or the DSP-FTA4XX units. The loss and delay for a
fiber under test is automatically calculated as the difference between the
reference loss and delay and those values measured with the fiber inserted.
For the most accurate test results, you should set the reference at these times:
•Anytime you start using a different DSP-FTA4XX unit or other optical
source.
•Anytime you reconnect a or change the patch cord used on the DSP-
FTA4XX OUTPUT port or other source.
Note
For the most accurate test results, set the reference at the beginning
of each day using the test configuration (Figure 5, 6, or 7) you will be
using that day.
The test tool stores separate reference values for each remote end
configuration.

DSP-FTA420/30/40
Users Manual
12
Setting a Reference for Smart Remote Mode
1. Turn on the test tool and the remote. Let the DSP-FTA4XX units warm up
for five minutes. Set the remote end configuration to Smart Remote Mode.
2. Choose four known-good SC/ST patch cords of fiber type matching the
cables to be tested, e.g., 50 µm multimode; 62.5 mulitmode, or
singlemode. Clean all fiber endfaces.
Note
If the fiber to be tested does not use ST adapters, select patch cords
with SC adapters on one end and the appropriate adapters on the
other end. Mate the cables with the appropriate adapters.
3. Make the connections shown in Figure 5.
4. Turn the rotary switch to SPECIAL FUNCTIONS. Select Set Fiber
Reference; then press E.