Textron Tempo 525N-30 User manual

TEMPO - 525N - 30 OLTS OPERATING MANUAL
CUSTOMER TRAINING & TECHNICAL SUPPORT
NOTICE: This document is an unpublished work
protected by United States copyright laws and
is proprietary to Tempo. Disclosure, copying,
reproduction, merger, translation, modification,
enhancement or use by anyone other than
authorized employees or licensees of Tempo
and its affiliate companies without prior consent
of Tempo is prohibited. REPRODUCTION
AND DISTRIBUTION OF THIS TECHNICAL
MANUAL IS AUTHORIZED FOR
GOVERNMENT PURPOSES.
Copyright © 2003
Tempo - a Textron Company. All rights reserved.
Tempo Research, a Delaware Corporation
PART NO. 52040534 REV 6 PRINTED IN U.S.A. (8/14)

Statement of Warranty
Tempo warrants this product to be free from defects in materials and
workmanship for a period of one (1) year from the date of shipment.
During the warranty period we will, at our option, either repair or
replace any product that proves to be defective. To exercise this war-
ranty, write or call your local Tempo representative, or contact Tempo
directly. You will be given prompt assistance and return instructions.
Send the instrument, transportation prepaid, to the indicated service
facility. Repairs will be made and the instrument will be returned
transportation prepaid. Repaired products are warranted for the bal-
ance of the original warranty period, or at least ninety (90) days.
Year 2000 Compliance:
Tempo warrants that the 525 and its ReportWriter Software are
designed to be used after the calendar year 2000 A.D., and that the
Software will operate without error relating to date data, specifically
including any error relating to, or the product of, date data which rep-
resents or references different centuries or more than one century.
Limitations of Warranty
This warranty does not apply to defects resulting from unauthorized
modification or misuse of any product or part. This warranty also
does not apply to AC adapters, batteries, or damage from battery leak-
age.
This warranty is in lieu of all other warranties, expressed or implied,
including any implied warranty of merchantability or fitness for a par-
ticular use. Tempo shall not be liable for any indirect, special, or con-
sequential damages.
OPERATING MANUAL – 525N - 30 OLTS

TABLE OF CONTENTS
Section 1 - GENERAL INFORMATION PAGE: 1
Product Description..........................................................................................1
Safety Terms & Precautions................................................................2
Unpacking & Inspection..................................................................................3
Reporting Shipping Damage, Service & Product Ordering..........................4
Preparation for Use.....................................................................................5-12
Section 2 - QUICK START GUIDE PAGE: 13
Front Panel Controls & Connectors................................................................13
Startup & Establish Reference Cables............................................................14
Duplex Insertion Loss Test........................................................................16-19
OPERATING MANUAL – 525N - 30 OLTS
i
Section 3 - SCREEN FUNCTIONS & DESCRIPTIONS PAGE: 20
Autotest Main Screen.....................................................................................20
Reference Methond Screens...........................................................................21
Setup Screens............................................................................................23-24
Menu Screen...................................................................................................25
View Data Screens..........................................................................................26
Tools Screens............................................................................................28-29
OPM/Source...................................................................................................31
Section 4 - SPECIFICATIONS PAGE: 34
Optical Power Meter Specifications...............................................................34
Specification Summary of LEDs..........................................................35
AutoTest Specifications .................................................................................35
Mechanical Specifications .............................................................................35
Parts & Accessories........................................................................................36
UCI Adapters..................................................................................................37
Technical Support & Service..........................................................................37
Periodic Calibration........................................................................................37

Section 1: General Information & Product Description
Product Description
The 525N-30 bi-directional optical test set is a compact handheld
instrument incorporating an AutoTest feature and Optical Power
Meter. It can be used to measure Insertion Loss in Duplex tests.
The 525N is fitted with a PC Universal Connector Interface on the
laser source, and a Snap-On Connector on the power meter, permit-
ting the unit to be used with compatible connectors.
All models in the series incorporate features that make fiber optic
tests and measurements more efficient and convenient:
*Built-in LED source, simplifies tests and measurements
*Non-volatile data storage for more than 1,000 measurements
*Pass/Fail testing mode
*RS232 interface for report printing, remote testing, data
uploads/downloads
*Multiple power options, including rechargeable nickelmetal
hydride (NiMH) batteries, alkaline batteries, concurrent
AC/battery trickle charge mode, and AC-only operation
Alarge, backlit LCD display enables users to easily view measured
optical power levels and the calibration wavelength in use. Intuitive
controls make measurements, data storage and retrieval, and report
printing easy and convenient.
525N-30 Series Multimode Optical Test Sets
The 525N Series optical test sets can perform optical power meas-
urements within a range of +3dBm to -65dBm. They are calibrated
at: 850nm, 980nm, 1300, 1310nm, 1480nm, 1550nm, and 1625nm.
There are LED sources available in the unit at 850nm and 1300nm.
1

Safety Terms in This Manual
AWARNING identifies dangers that could result in personal injury
or death.
ACAUTION identifies hazards that could damage the instrument.
ANOTE is followed by information that may be beneficial during
the use of the instrument.
Specific Precautions
Never use the instrument with a battery charger, rechargeable battery
pack, or external power supply not expressly approved by Tempo.
Do not insert any batteries with the polarity reversed. Do not mix bat-
teries of different manufacturers or types, e.g., alkaline and non-alka-
line.
The instrument battery cover should only be opened to change the
batteries, or to install or remove a rechargeable battery pack, in accor-
dance with the procedures in this manual. No user-serviceable parts
are inside.
Avoid leaving the instrument in direct sunlight, or near direct sources
of heat.
Always replace the interface dust caps when the instrument is not in
use. Store the instrument and interface adapters in a cool, dry, and
clean place.
Protect the instrument from strong impacts or shock.
While splashproof, the instrument must not be immersed in water or
stored in areas with high humidity.
When necessary, the case, front panel, and rubber cover should only
be cleaned using a damp cloth. Do not use abrasives, harsh chemicals,
or solvents.
OPERATING MANUAL – 525N - 30 OLTS
2
Continued on the next page...

Unpacking and Inspection
The 525N Series optical test set has been carefully inspected before
shipment. When received, the shipping carton should contain the
items listed below:
525 Unit
AC Adapter
RS232 Cable
Connector Cleaning System (All-In-One)
Adapter Cleaning Wands
SOC Adapters (one each of ST, SC, FC)
Ceramic UCI Adapters (one each of ST, SC, FC)
SOC Puller Tool
Mandrel (for SM units only)
CD–Containing User Manual, ReportWriter Software,
ReportWriter Manual, and Technical Description
Please account for and inspect each item while unpacking and prepar-
ing the instrument for use.
If the instrument received is damaged, write or call Tempo in accor-
dance with the instructions below.
Keep the shipping carton in case reshipment is required for any rea-
son, e.g., annual recalibration.
Section 1: General Information & Product Description
3
Continued on the next page...

OPERATING MANUAL – 525N - 30 OLTS
4
Reporting Shipping Damage
All instruments are shipped FCA Vista, Calif., when ordered from
Tempo.
If you receive a damaged instrument, you should:
1. Report the damage to your shipper immediately.
2. Save all shipping cartons.
3. Inform Tempo and follow the instructions given by customer
service. You will be issued a Returned Materials Authorization
(RMA) number if the instrument must be shipped back to
Tempo.
To contact Tempo customer service, call [phone] from 7 a.m.
to 4:30 p.m. Pacific time.
Inquiries may also be faxed to Tempo at [phone], or sent via e-
mail to [email protected].
Failure to follow this procedure may affect your claim for compensa-
tion.
Service and Product Ordering
For warranty or non-warranty service, please Telephone, Fax or E-Mail
Tempo at -
TEL: [phone] or 1 760 598-8900
FAX: [phone]
E-MAIL: [e-mail]
For product and ordering information, please Telephone, Fax or E-Mail
Tempo at -
TEL: [phone] or 1 760 598-8900
FAX: [phone]
E-Mail: [e-mail]
WEB: WWW.TEMPO.TEXTRON.COM

Section 1: General Information & Product Description
5
Preparation for Use
Charging the NiMH Battery Pack
The 525N Series optical test set is shipped with a nickel-metal
hydride (NiMH) battery pack installed. This battery pack must be
charged before the instrument is used for the first time.
To charge the NiMH battery pack, do the following:
1. Plug the power transformer/NiMH battery charger into a wall
outlet.
2. Insert the plug from the power transformer/NiMH battery
charger into the DC input receptacle on the side of the instru-
ment.
3. The red charge state indicator will illuminate. Allow the batter-
ies to charge until the indicator turns off (4 hours maximum).
4. Disconnect the unit from the power transformer/NiMH battery
charger.
The instrument can now be used.
NOTE: The NiMH battery pack and power transformer/NiMH bat-
tery charger will become warm during use. This is normal.
Trickle Charge Function
The 525N Series optical test set incorporates a trickle charge function
that prevents the batteries from being damaged from overcharging.
The instrument can remain connected to the power
transformer/NiMH battery charger indefinitely without damaging the
batteries.
The trickle charge function monitors the condition of the batteries
when the instrument is connected to the power transformer/NiMH
battery charger. If the batteries are drained, the instrument will begin
a maintenance charge cycle to ensure they are at full capacity.
Setting the Internal Clock and Calendar
The 525N Series optical test set incorporates an internal clock and
calendar, permitting the time and date to be recorded when a meas-
urement is saved.
The internal clock and calendar should be set before using the instru-
ment for the first time using the Set 525 Clock feature in the Utilities
mode of the ReportWriter software.
Continued on the next page...

OPERATING MANUAL – 525N - 30 OLTS
6
Boot, Housing and Power Options
Removing/Installing the Rubber Boot
The 525N Series optical test set is fitted with a rubber boot that pro-
vides impact and shock protection during use. This rubber boot incor-
porates a swing-out stand, permitting convenient viewing of the dis-
play when the instrument is used on the benchtop.
The rubber boot must be removed to access the battery compartment
cover on the back of the instrument housing. To remove the boot, do
the following:
1. Grasp the boot in both hands and gently peel back the sides
starting from the top.
2. Press the back of the instrument through the rectangular hole in
the boot to pivot it forward.
3. Pull the instrument away from the boot.
Installation of the boot is the reverse of removal. Make sure the
instrument is seated snugly in the boot before use.
NOTE: To prevent damage from shock or impact, do not use the instrument
without the boot in place.
Removing/Installing the Battery Cover
The battery compartment is sealed by a plastic cover secured by two
Phillips screws, which must be removed for access. To open the bat-
tery compartment, do the following:
1. Remove the rubber boot as described
in the preceding section.
2. Lay the instrument display-side down
on a soft surface, such a towel, to pre-
vent scratching of the front panel.
3. The two screws securing the battery
cover will now be visible. Remove
both screws by turning them counter
clockwise using a #1 Phillips screw
driver. Put the screws in a safe place.
4. The battery cover can now be lifted away from the instrument
housing. Gently pry up on the bottom of the cover. DO NOT
USE A METAL TOOL TO PRY OPEN THE COVER.
Installation of the battery cover is the reverse of removal. Take care
not to overtighten the screws securing the battery cover or damage
may result. Continued on the next page...

Section 1: General Information & Product Description
7
Multiple Power Options
The 525N Series optical test set features four power options:
1. Rechargeable nickel-metal hydride battery operation. Nickel-
metal hydride battery pack required.
2. Concurrent nickel-metal hydride (NiMH) battery recharging
(trickle charging) and AC operation.
3. Alkaline battery operation. Four AA-type alkaline batteries
required.
4. AC-only operation.
CAUTION: Never use the instrument with a battery charger,
rechargeable battery pack, or external power supply not expressly
approved by Tempo.
Rechargeable NiMH Battery Operation
The 525N Series optical test set is shipped with a rechargeable nick-
el-metal hydride (NiMH) battery pack installed. The battery can be
trickle-charged while the instrument is in use.
The nickel-metal hydride battery pack provides up to 10 hours of con-
tinuous operation.
NOTE: The nickel-metal hydride battery pack incorporates a device
that enables the charging circuit to function. The 525N Series optical
test set must only be used with NiMH battery packs with this part
number. Other battery packs will not charge when installed in the
instrument.
CAUTION: Do not remove the plastic covering from the battery pack.
Continued on the next page...

OPERATING MANUAL – 525N - 30 OLTS
8
Alkaline Battery Operation
For convenient field service, four (4) AA-type alkaline batteries may
be used to power the 525N Series optical test set after the nickel-
metal hydride battery pack has been removed. Alkaline batteries will
provide up to 24 hours of continuous operation.
NOTE: The instrument will not charge alkaline batteries when the
power transformer/NiMH battery charger is connected. This allows
the instrument to be operated using AC power when alkaline batter-
ies are installed.
To use alkaline batteries, do the following:
1. Remove the battery compartment cover.
2. Remove the nickel-metal hydride battery pack.
3. Install four AA-type alkaline batteries as shown inside the bat-
tery compartment. Do not reverse the polarity of the batteries.
4. Replace the battery compartment cover.
AC-Only Operation
The 525N Series optical test set may be used without any batteries
installed. To do so, connect the power tranformer/NiMH battery
charger to the instrument, and plug the other end into an AC power
outlet.

LED Indicators, DC Input, and RS232 Port
The DC input receptacle and RS232 port are located on the right side
of the instrument when viewed from the front. If the protective rub-
ber boot is installed, lift the flap for access.
1. Source active indicator: This
indicator, located on top of
the unit between the input and
output interfaces, will illumi-
nate when the laser source is
switched on. The indicator will
go out when the source is
switched off.
2. Modular RS232 port:
Stored data can also be
displayed on-screen using
ReportWriter software,
Microsoft HyperTerminal, or
other serial communications
applications.
3. Charge state indicator: This
indicator will illuminate when
the nickelmetal hydride (NiMH)
battery pack is fast-charging
using the power transformer /
NiMH battery charger. The
charge state indicator will go
out when the battery is fully
charged and the instrument
enters trickle charge mode.
NOTE: The charge state indicator
does not function for alkaline battery
operation, or if the batteries are
removed.
4. DC input receptacle: The power transformer/NiMH battery
charger is connected to this receptacle.
CAUTION: Never use the instrument with a battery charger,
rechargeable battery pack, or external power supply not expressly
approved by Tempo.
9
Section 1: General Information & Product Description

Snap-On Connector (SOC) Interface
The optical power meter input of the 525N Series optical test set
incorporates a Snap-On Connector (SOC) interface and is used with
standard Tempo 10-series SOC adapters. SOC interfaces and adapters
offer superior repeatability and are compatible with most industry
standard fiber optic connectors. SOC adapters can also be quickly
removed from the interface to permit cleaning of the detector window
in accordance with the following instructions.
Removing an SOC Adapter
1. Grasp the sides of the SOC adapter and
pull it off the interface. SOC adapters
require considerable force to remove.
Do not attempt to pry the adapter off
the interface or damage will result.
2. Put the adapter in a clean place.
Installing an SOC Adapter
1. Locate the anti-rotation key on the
interface.
2. With the keyway properly aligned,
push the adapter over the interface until
it snaps in place.
Universal Connector Interface (UCI)
The laser source output of the 525N Series optical test set incorpo-
rates a physical contact Universal Connector Interface (UCI-PC) and
is used with standard Ceramic UCI adapters. UCI adapters are avail-
able for most industry standard fiber optic connectors.
Removing a UCI Adapter
1. Turn the knurled adapter shell counter-
clockwise until it is free from the inter-
face.
2. Pull the adapter off the ferrule.
3. Put the adapter in a clean place.
Installing a UCI Adapter
1. Press the adapter firmly over the inter
face ferrule until it reaches the stop.
2. Rotate the adapter body until the anti-
rotation key engages.
3. Firmly tighten the knurled adapter shell
by turning it clockwise.
10
OPERATING MANUAL – 525N - 30 OLTS

11
Cleaning the Instrument Interfaces
To ensure absolute measurement integrity, it is essential that all
instrument interfaces are cleaned before each use. Tempo recom-
mends using a lint-free cloth, such as Texwipe TX404, and reagent-
grade isopropyl alcohol to clean the SOC and UCI interfaces of the
525N optical test set.
NOTE: It is essential that the connectors and interfaces to be mated
are cleaned each and every time before connecting or re-connecting
them to anything—instrument inputs/outputs, transmission equip-
ment, patch panels, etc.
To clean the interfaces, do the following:
1. Remove the SOC or UCI adapter in accordance with the pre-
ceding instructions.
2. Wipe once across the interface with a clean lint-free cloth, such
as Texwipe TX404. When cleaning a SOC interface, take care
not to press too firmly to avoid breaking the detector window.
NOTE: If the interface is extremely dirty, reagent-grade isopropyl
alcohol will be required to clean it. Moisten the lint-free cloth with
alcohol and wipe once across the interface. Make sure all residual
alcohol has completely evaporated before proceeding to the next step.
3. Re-install the SOC or UCI adapter in accordance with the pre-
ceding instructions.
Cleaning a UCI Adapter
For increased durability, most UCI adapters incorporate a ceramic
alignment sleeve that must be cleaned every time before a connector
is mated. Failure to clean the sleeve prior to mating a connector will
result in endface contamination and inaccurate measurements.
NOTE: UCI adapters incorporating a ceramic sleeve do not require
frequent cleaning. Such adapters must be handled carefully to avoid
sleeve breakage.
To clean a UCI adapter, do the following:
1. Remove the adapter from the inter-
face.
2. Insert a new cleaning wand into
the through-hole of the adapter until
it stops.
3. Twist the wand, remove it and dis-
card. Do not reuse the cleaning wand.
Section 1: General Information & Product Description

12
Cleaning Fiber Optic Connectors
To ensure absolute measurement accuracy and repeatability, fiber
optic connectors must always be cleaned before conducting a fiber
optic measurement. Dust and oil contamination on the connector end-
faces, as shown at right, can result in abnormally high insertion loss
readings and other anomalies.
Tempo recommends the use of the All-In-One cleaning tool for fiber
optic connectors in accordance with the enclosed instructions. If an
All-In-One cleaning tool is not available, the connectors should be
cleaned as follows:
1. Moisten a clean, lint-free cloth, such as Texwipe TX404, with
reagentgrade isopropyl alcohol.
2. Wipe once across the connector endface with the damp part of
the cloth using moderate pressure. Make sure the alcohol has
completely evaporated before commencing.
3. If possible, visually inspect the connector endface using a mag-
nifier or microscope, such as a Leica 200x FiberVue micro
scope, Tempo Part No. FVK-200/U25. If the end face still
appears dirty, clean it again.
WARNING: Never clean or visually inspect
a fiber optic connector under power.
Viewing the end of an optical fiber under
power can cause permanent eye damage or
blindness.
OPERATING MANUAL – 525N - 30 OLTS

Section 2: Quick Start Guide
13
Front Panel Controls & Connectors
POWER METER PORT -
Optical Power Meter input
equipped with SOC adapter.
SOURCE PORT -
Source output equipped with physi-
cal contact UCI interface.
ARROW BUTTONS -
Moves highlighted
screen cursor left &
right. Moves the line
selection ( ) up
or down & scrolls
through alphanumeric
characters.
SOFT KEYS -
Inputs various
commands
according to the
label displayed
on the LCD
screen above.
POWER BUTTON -
Tu r ns unit on and
off.
BACKLIGHT BUTTON -
Switches the Display
Backlight on and off.
The default is Off.
ENTER BUTTON -
Selects & inputs the high-
lighted entry on the LCD
screen.
AUTOTEST BUTTON -
Displays connection
instructions & initiates
test function of the unit.
➤
➤

OPERATING MANUAL – 525N - 30 OLTS
14
AUTOTEST QUICK START GUIDE
THIS IS A QUICK START REFERENCE ONLY. Refer to additional
manual sections for detailed descriptions of how to configure and per-
form testing with the 525N-30 Mulitmode OLTS.
REMEMBER: To ensure absolute measurement accuracy, fiber optic
connectors must be cleaned before conducting a fiberoptic measurement.
Startup and Establish Reference Cables
1. Press the Power Button. Startup logo and version will display briefly.
2. At the AutoTest Main Screen establish a
reference using the SIDE-BY-SIDE or
LOOPBACK method by pressing the REF
softkey and performing the following –
3A. Side-by-Side Reference -
a. Use the UP/DOWN arrow keys to
high light SIDE BY SIDE.
b. Press ENTER button to select.
Note: The unit initiating a test or reference is
the ‘Local’ unit, and will hold the
references. The other unit is the
‘Remote’ and should be in this screen.
c. Per the screen diagram, connect first set
of Reference Cables from the Source
Port of the Local Unit to the to the
Power Meter Port of the Remote Unit.
d. Then connect the second set of
Reference Cables from the the Power
Meter Port of the Local, to the Source
Port of the Remote Unit.
e. Press the NEXT softkey to con-
tinue. (Leave Remote Unit in the
Startup Screen, the Local Unit will dis-
play the references)
f. When complete, a checkmark will
appear on screen.
g. Press DONE softkey to return to the
AUTOTEST screen.