Grandway OFI-3 User manual

User's Guide to the OFI-3
Optical Fiber Identifier
English Version
OFI-3

User's Guide to the OFI-3
Optical Fiber Identifier

CONTENTS PAGE
1 Introduction
2 Warranty
2.1 One Year Limited Warranty
2.2 Exclusions
2.3 Returning Product
2.4 Contact us
3 Safety Information
4 Preparing for Operation
4.1 Unpacking the instrument
4.2 Battery
5 Operation
5.1 Controls and connectors
5.2 Powering on the instrument
5.3 Traffic detecting
5.4 Frequency detecting
5.5 Signal intensity
5.6 Self-calibrating
6 Specifications
7 Maintenance
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2
4
5
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1
OFI-3 / Introduction
1 Introduction
The OFI-3 optical fiber identifier is an inexpensive, portable
instrument designed to identify optical test tones and live
traffic without disconnecting live system. By simply
clamping the OFI-3 onto a fiber, the instrument will indicate
if there is a signal, or traffic and show the signal direction. It
can detect a variety of optical tones, 270Hz, 1KHz and
2KHz.
The OFI-3 is recommended for both 0.25 mm bare fiber,
0.9mm tightly buffered fiber and 2/3mm jacket fiber. When
testing jacket fibers, the slim design of the OFI-3 allows
easier access to a splice tray where the amount of
workspace is limited. The clamping trigger is designed to fit
the natural motion of the operator’s hand. The instrument is
ruggedly constructed and reliable to use.

2
OFI-3 / Warranty
2 Warranty
One Year Limited Warranty
Grandway products are warranted against the defective components and workmanship for a period
of one year from the date of delivery to the original customer. Any product found to be defective
within the warranty period would be returned to Grandway authorized service center for repair,
replacement and calibration.
Exclusions
The warranty on your equipment shall not apply to defects resulting from the following:
Unauthorized repair or modification
Misuse, negligence, or accident
Returning Product
To return product, you may contact Grandway to obtain additional information if necessary.
To serve you better, please specify the reasons for the return.
All delivery and mails should be sent to the following address:

3
Grandway Customer Service
6F, Xin'an building No. 99 Tianzhou Road
Shanghai, 200233 P.R. China
Contact Us
Tel: [phone]/61/62/63
Fax: [phone]
E-mail: [e-mail]
Website: www.grandway.com.cn
OFI-3 / Warranty

4
OFI-3 / Safety Information
3 Safety Information
Never look directly into optical outputs or a fiber while the equipment is on.Invisible laser beam
may damage your eyes.
Do not short-circuit the terminal of AC adapter / charger and the batteries.Excessive electrical
current may cause personal injury due to fumes,electric shock or equipment damage.
Connect AC power cord with the equipment and wall socket properly. While inserting the AC plug,
make sure there is no dust or dirt on the terminals and both plugs are fully seated. Incomplete
engagement may cause fuming, electric shock or equipment damage and may result in personal
injury.
Do not operate the equipment near hot objects, in hot environments, in dusty/ humid atmosphere
or when condensation is present on the equipment. This may result in electric shock , product
malfunction or poor performance.
Warnings!

5
OFI-3 / Preparing for Operation
4 Preparing for Operation
4.1 Unpacking the instrument
Packing material
We suggest that you keep the original packing material. Using the original packing material is your
guarantee of protecting the instrument during transit.
Checking the package contents
The standard accessories of OFI-3 are as follows:
Main unit User's Guide
Plungers 2*1.5V Alkaline Batteries
Carrying Case Quality Check Report
Checking for damage in transit
After unpacking the instrument, check to see whether it was damaged in transit. This is particularly likely
if the outer casing is clearly damaged. If there is damage, do not attempt to operate the instrument or to
repair it without authorization. Doing so can cause further damage and you may lose your warranty
qualification.

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4.2 Battery
The OFI-3 instrument is powered by two 1.5V AA batteries. There is a “Low” battery indicator on the
panel board. It turns on if there is not enough power to supply the instrument. That is when you should
replace the battery with a new one. To replace the battery, please remove the battery plate on the back
side of the instrument with a screwdriver.
Note: 1 It is advisable to use 1.5V alkaline batteries. The Low Battery Indicator may light up if you use
rechargeable batteries.
2 To eliminate the possibility of acid leakage, please take out the batteries if the unit is not used for a
long time.
OFI-3 / Preparing for Operation

7
OFI-3 / Operation
5 Operation
5.1 Controls and connectors
5.1.1 Front (Panel Board)
Key / Indicator
Plunger
Fiber Groove
PD Headstock
No Signal Indicator
Left Traffic Indicator
Right Traffic Indicator
Signal Intensity Indicator
2kHz Indicator
1kHz Indicator
270Hz Indicator
Low Battery Indicator
Adjusting Key
Note
Three available types: H0.25mm, H0.9mm, H3.0mm.
A slot to place tested fiber.
Lights up if there is not a signal in tested fiber.
Lights up if the signal in tested fiber is from right to left.
Lights up if the signal in tested fiber is from left to right.
To show the signal intensity level. The higher, the stronger.
Lights up if the wave frequency is 2kHz.
Lights up if the wave frequency is 1kHz.
Lights up if the wave frequency is 270Hz.
Lights up when there is not enough power.
Self-calibrates.
H2.0mm,
No.
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8
9
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AD JUS T
12

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5.1.2 Back & Side
Serial Number
Clamping Trigger
Battery Plate
1
2
3
OFI-3 / Operation

9
5.2 Powering on the instrument
Gently insert the tested fiber into the
groove at the top of instrument. Pull the
clamping trigger slowly to depress the
fiber against the optical assembly. The
instrument powers on when the detector
plunger has closed and the fiber is in the
appropriate position.
Note: Please be careful while placing the
fiber in the provided slot. Force the fiber
into the headstock. Misaligning the fiber
may induce optical losses above what the
specification demonstrates.
ADJU ST
OFI-3 / Operation

10
5.3 Traffic detecting
If the tested fiber is carrying signal, a Traffic Indicator illuminates to show the direction, left or
right.
When no signal is present or the signal to be tested is too weak for the instrument to detect, the
No Signal Indicator illuminates.
OFI-3 / Operation

11
5.4 Frequency detecting
If the tested fiber is carrying 2kHz, 1kHz or
270Hz modulated wave, the respective
modulation indicator illuminates and the
instrument makes a buzzing sound.
Note: The instrument may not recognize the
frequency correctly if the signal is too weak or
the frequency is not stable.
ADJU ST
OFI-3 / Operation

12
5.5 Signal intensity
The signal intensity indicator on the panel board lights
up to tell you how strong the signal is. There are 5
LEDS aligning in a line. More of them illuminate
meaning the signal is stronger.
ADJU ST
OFI-3 / Operation

13
5.6 Self-calibrating
The instrument may need a little
adjustment after long-term disuse or a
sudden change of the environment
such as temperature or light variation.
Change the plunger to the H0.25 type,
pull the clamping trigger, then press
the "Adjust" key shortly to start the
self-calibration which lasts about 10-
30 seconds. When it finishes, the
instrument makes a buzzing sound
and the "No Signal" Indicator blinks.
ADJU STADJU ST
OFI-3 / Operation

-20dBm
-10dBm
-10dBm
-10dBm
-30dBm
-18dBm
-18dBm
-18dBm
Sensitivity
(Minimum recognizable optical power intensity in the fiber)
Continuous Wave
2KHz Modulated Wave Detection
1KHz Modulated Wave Detection
270Hz Modulated Wave Detection
1310nm(typical) 1550nm(typical)
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6 Specifications
Optical Specifications
Model
Recognizable Wavelength Range
Recognizable Signal Type
Detector Type
Available Plunger
Detecting Sensitivity
Power
OFI-3
900nm - 1650nm
CW,270Hz±5%,1KHz±5%,2KHz±5%
InGaAa 2pcs
H 0.25 for bare fibers
H 0.9 for tightly buffered fibers
H3.0 for jacket fibers
≤-50dBm
2*1.5V AA batteries
OFI-3 / Specification

15
General Specifications
Operation Temperature -10℃~+50℃
Storage Temperature -20℃~+70℃
Size(H*W*D) 3.6cm*6.2cm*20.2cm
Weight 0.27kg
OFI-3 / Specification

OFI-3 / Maintenance
16
7 Maintenance
1. All the specifications of OFI-3 series are tested with cleaned Corning SMF-28TM/SMF-D pure non-
dispersion coated fiber. The testing performance will be affected when using different brands or types
of fibers with various coating color.
2. Please do not bend the fiber excessively; which may lead to misjudgment on traffic or even breaking
the fiber.

3. Keep the optical receiver clean and use cleaning oil when
testing bare fiber to achieve the best performance.
4. To clean the optical assembly, remove the clamp and gently
clean the prism and optical windows using cleaning pads and
cleaning oil. Do not immerse the plunger assembly in alcohol.
NOTE: Specifications, terms and conditions are subject to change without notice.
©Copyright 2006 Grandway. All rights reserved.
Grandway and its logo are trademarks of Grandway.
Printed in China.
17
OFI-3 / Maintenance
Removing the clamp
before cleaning
Cleaning oil
Cleaning pad