Shineway Tech OVA-50 User manual

OVA-50
Optical Variable Attenuator
User’s Manual
Shineway Technologies, Inc.
All rights reserved.

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Safety Instructions
The WARNING sign denotes a hazard. It calls attention to a
procedure, practice, or the like, which, if not correctly performed or
adhered to, could result in personnel injury. Do not proceed beyond a
WARNING sign until the indicated conditions are fully understood
and met.
The CAUTION sign denotes a hazard. It calls attention to an
operating procedure, or the like, which, if not correctly performed or
adhered to, could result in damage to or destruction of part or the
entire product. Do not proceed beyond a CAUTION sign until the
indicated conditions are fully understood and met.
The NOTE sign information that may be beneficial during the use
and maintenance of the instrument.
Always avoid looking directly into the optical output port,
Battery: OVA-50 battery type is lithium battery. Do not take battery
out without technical staff’s assistance. Do not expose battery to fire
or intense heat. Do not open or mutilate battery. Avoid touching the
electrolyte in the battery, which is corrosive and may cause injuries to
eyes, skin or damage to clothes.
External Power Supply: Power Adaptor, 5V DC/750mA
Laser Radiation: To avoid serious eye injury, never look directly into
the optical outputs of fiber optic network equipment, test equipment,
patch cords, or test jumpers.
Users should avoid looking directly into the optic output of
OVA-50. And the use of microscope or magnifier should also be
avoided, for the use of such devices can focus a highly intense
beam onto the retina, which may result in permanent eye damage

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when the instrument is working
Always replace protective dust cap on the detector port when
the instrument is not in use.
Always avoid looking directly at unconnected end of optic
fiber in testing and make the unconnected end pointing at a
non-reflective object.

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Contents
Safety Instructions...............................................................................................ii
1. General Information .......................................................................................1
1.1 Scope of this Manual.....................................................................................................1
1.2 Unpacking and Inspection.............................................................................................1
1.3 Introduction...................................................................................................................1
2. Basic Operation ...............................................................................................3
2.1 Foreword .......................................................................................................................3
2.2 Instrument Details .........................................................................................................3
2.2.1 External Interfaces .................................................................................................4
2.2.2 Keypad Operation ..................................................................................................4
2.2.3 Indicator.................................................................................................................5
2.3 Use of Battery................................................................................................................5
2.4 Connector Cleaning.......................................................................................................5
3. Operation..........................................................................................................6
3.1 Power On.......................................................................................................................6
3.2 Absolute Attenuation.....................................................................................................6
3.3 Relative Attenuation......................................................................................................7
3.4 Program.........................................................................................................................8
3.5 Output Power Control....................................................................................................9
4. Calibration .....................................................................................................10
4.1 Optical Interface Cleaning...........................................................................................10
4.2 Calibration Requirements............................................................................................10
5. Specifications..................................................................................................11
6 Warranty Information ...................................................................................12
6.1 Warranty Period...........................................................................................................12
6.2 Exclusion.....................................................................................................................12
6.3 Warranty Registration..................................................................................................12
6.4 Returning Instrument...................................................................................................12
6.5 Contact Customer Service...........................................................................................13

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1. General Information
1.1 Scope of this Manual
Thank you for purchasing ShinewayTechinstrument. Please read this manual carefully
before using ShinewayTechfiber optic instrument. Always be aware of the Warning and
Caution sign appearing throughout this manual.
This manual contains the information necessary for proper operation and maintenance of
ShinewayTechinstrument, troubleshooting instructions as well as information regarding
maintenance services.
All ShinewayTechinstruments are carefully assembled and undergo rigorous mechanical,
electrical, and optical inspection prior to shipment. Beside the instrument, the package also
includes a lithium battery pack, a charging/data transfer cable, a power adapter, a FC/PC
flange and this user's manual. For detailed information, please refer to the packing list.
Upon receiving the instrument, please check for any obvious signs of physical damage that
may have occurred during shipment. Report any damage to the shipping agent or the
representative of Shineway Technologies Inc. immediately. Retain the original packing
materials in case reshipment is necessary.
1.2 Unpacking and Inspection
This instrument has been carefully packed in accordance with standard shipping procedures.
Examine the instrument for damage that may have occurred during shipment. If you find
any damage or the instrument is not working, or if any of the following items are not
included, please contact your representative of Shineway Technologies, Inc.
If necessary, you may contact Shineway Technologies, Inc via this email:
[e-mail].
1.3 Introduction
ShinewayTechOVA-50 Optical Variable Attenuator can precisely attenuate input optical
signals at 1310/1490/1550/1625nm wavelengths and directly output defined stabilized

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optical signals. OVA-50 is applicable in various testing situations:
Network/BER testing
Power meter calibration
Link loss simulation
Optical margin analysis
Features:
Attenuation range: 2.5-60dB
Direct output power control
Working modes:
Output power control
Absolute/relative attenuation setting
Program (Preprogramming frequently-used attenuations)
Adjust at step of 0.05/0.10/1.00/10.00 dB
PC control via USB
Backlight
Over 30 hours continuous operation
Handheld, light and easy-to-use
CE FCC certificates
Direct Output Power Control
Normal attenuator can only introduce and display an attenuation value, you need a separate
power meter to measure or adjust the output power value of attenuated optical signal.
Working like a combination of attenuator and power meter, OVA-50 Output Power Control
mode enables direct setting of precise optical power level and can automatically stabilize
output level without any interference by variations of input power.
Program Mode
User can preprogram frequently-used attenuations to reduce workload.

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2. Basic Operation
2.1 Foreword
This part introduces the basic operation on OVA-50. Specific operations of each type
instrument are elaborated in Chapter 3 of this manual. Please read this manual carefully for
optimal operation. If you encounter any problems during operation, you are welcome to
contact the technical staff of our company or representatives.
2.2 Instrument Details
2
1

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2.2.1 External Interfaces
1. Optical Input
OVA-50 is available with FC connector (Interchangeable SC/ST).
2. USB Power /Data Port
OVA-50 can be charged by external power adapter (5V DC, 750mA).
2.2.2 Keypad Operation
Power on/off
Toggle between calibrated wavelengths
Reset to minimum attenuation value
Short press to toggle between working modes:
Absolute attenuation, Relative attenuation, Program & Output power
control;
Long press to enable/disable Auto Off
Change attenuation value
Toggle between attenuation stepping;
Shift digit positions
Enter functional interface; Confirm
Turn backlight on/off; Long press to adjust contrast

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2.2.3 Indicator
Charging indicator
2.3 Use of Battery
OVA-50 works on lithium battery, please make sure battery is mounted properly before use.
When battery is low, low battery indicator will appear on LCD. You can still use OVA-50 as
long as its display on LCD is identifiable. Please charge as soon as possible when battery is
low to ensure accurate measurement.
Please take out the battery if OVA-50 is not in use for a long time.
2.4 Connector Cleaning
Please follow the instructions below when cleaning:
Turn off the instrument before cleaning.
Non-compliant operation may result in hazardous radiation exposure.
Turn off laser source before cleaning optical interface.
Always avoid looking directly into the optical output port when the instrument is
working, laser is invisible and can cause serious eye damage.
Disconnect instrument from power supply before cleaning to prevent electric
shock.
Do not install unauthorized parts or make unauthorized adjustments on instrument.
Please consult qualified professional about maintenance and repair services.
Always clean optical connector before using optical power meter to ensure accurate
measurement. Clean the optical connector gently with cleaning swab.
Inappropriate maintenance may result in low performance or error:
Distance error increases;
Linearity error;
Extra optical power attenuation;
Received optical power is beyond normal range.

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3. Operation
3.1 Power On
Press [On/Off] button and loading screen appears, see Figure 3.1.
ShinewayTech®
OVA-50
Version 1.00
Figure 3.1
Then it enters default interface:Absolute attenuation setting, see Figure 3.2.
1550 nm
1.00
dB
：
0.05
Figure 3.2
3.2 Absolute Attenuation
It is default to enter absolute attenuation mode when OVA-50 powers on; or press
button to absolute attenuation mode, see Figure 3.2;
In absolute attenuation mode, press button to toggle between the steps of
0.05/0.10/1.00/10.00; press or button to adjust absolute attenuation value.
Press button to insertion loss setting interface, see Figure 3.3.

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1550 nm
1.00
dB
：
0.05
SET INS
Figure 3.3
Press button to toggle between the steps of 0.05/0.10/1.00/10.00; press or
button to adjust insertion loss value; Press button to confirm and return to
the initial interface of absolute attenuation mode.
Note: 1. Function shown in Figure 3.3 is mainly applied before testing to set the insertion
loss for jumper fiber and the instrument to ensure accurate attenuation calculation.
2. Once the insertion loss value is set, press button and OVA-50 will save the value
as default minimum attenuation value.
3.3 Relative Attenuation
Press button to relative attenuation value mode, see Figure 3.4;
1550 nm
dB
：
0.05
0.00
REF: 10.00
Figure 3.4
Press button to toggle between the steps of 0.05/0.10/1.00/10.00; Press or
button to adjust relative attenuation value, then real attenuation value equals set
reference attenuation value (See Figure 3.4: “REF: 10.00”) plus set relative attenuation
value;
In the interface of Figure 3.4, press button to interface shown in Figure 3.5 and press

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or button to adjust relative attenuation value; Press button to confirm
and return to the initial interface of relative attenuation mode.
1550 nm
10.30
dB
：
0.05
SET ATTRef
Figure 3.5
3.4 Program
Press button to program attenuation mode, see Figure 3.6
1550 nm
dB
：
0.05
10.00
0123456789
Figure 3.6
There are 10 preset attenuation values in the program attenuation mode; black arrow
indicates the currently selected preset.
Press or button to select the preset attenuation value.
Press button, the black arrow on the top of the selected preset will blink, press
or button to adjust the value of the current preset attenuation; Press
button to toggle between the steps of 0.05/0.10/1.00/10.00; Press button to confirm
and return to the initial interface of program attenuation mode.

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3.5 Output Power Control
Press button to output power control mode, see Figure 3.7.
1550 nm
dBm
- 15.00
OUTPUT PWR
Figure 3.7
Press button to enter output power setting interface, see Figure 3.8.
1550 nm
dBm
- 15.00
SET OUTPUT
Figure 3.8
Press button to shift digit position of the output power value; Press or
button to adjust the value of output power; Press button to confirm and
return to the initial interface of output power control mode.
Note: “IN: XXXXXdBm”will display when set value is equal or greater than input
value, and “OUT OF RANGE”will display on the bottom of interface, and then the function
is invalid.
1550 nm
dBm
：
-20.00dBm
- 15.00
IN
OUT OF RANGE

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4. Calibration
4.1 Optical Interface Cleaning
Optical interface must be always kept clean. Always put protective dust cap on when the
unit is not in use, and keep the protective dust cap clean.
4.2 Calibration Requirements
Calibration of the instrument is recommended every 3 years. Please contact our
representatives or customer service centers for proper calibration.

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5. Specifications
Note: (1) Input power level should be at least 3 dB higher than selected output power level;
Input power variations in frequency range <0.5 Hz
* Specifications subject to change without notice
Model
OVA-50
Wavelength Range
1260~1650nm
Calibrated Wavelengths
1310/1490/1550/1625nm
Fiber Type
9/125μm Singlemode
Attenuation Range
2.5 - 60dB
Insertion Loss
<2.5dB
Max Input Power
+21dBm
Output Power Range (1)
+18 ~ -55 dBm
Setting Time
<3s
Display Resolution
0.01dB
Attenuation Accuracy
±0.25dB @+25℃( Output power control mode)
Repeatability
±0.25dB @+25℃
Return Loss
≥55dB
Connector
FC/PC (Interchangeable SC,ST)
Power Saving
Auto-off after 5 minutes idle
Backlight
Yes
Power Supply
Li-Ion Battery/AC Adaptor
Battery Life
Continuous operation >30hours
Weight
345g (0.7 lbs)
Dimensions (H ×W ×T)
177×80×44mm (6.97×3.15×1.73 inch)

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6 Warranty Information
6.1 Warranty Period
All ShinewayTechproducts are warranted against defective material and workmanship
for a period of one (1) year from the date of shipment to the original customer. Any product
found to be defective within the warranty period would be repaired or replaced by Shineway
Technologies Inc free of charge.
In no case will Shineway Technologies, Inc liabilities exceed the original purchase price of
the product.
6.2 Exclusion
The warranty on your equipment shall not apply to defects resulting from the following:
Unauthorized repair or modification
Misuse, negligence, or accident
Shineway Technologies, Inc. reserves the right to make changes to any of its products at any
time without having to replace or change previously purchased units.
6.3 Warranty Registration
A warranty registration card is included with the original shipment of equipment. Please
take a few minutes to fill out the card and mail or fax it to the local Customer Service Center
of Shineway Technologies, Inc. for your product warranty activation.
6.4 Returning Instrument
To return instrument for yearly calibration or other purposes, please contact the local
Customer Service Center of Shineway Technologies, Inc to obtain additional information
and a RMA (Return Materials Authorization) number. And describe brief reasons for the
return of the equipment to help us offer you efficient services.
To return the instrument in the case of repair, calibration or other
maintenance, please note the following:

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Be sure to pack the instrument with soft cushion like Polyethylene, so as to protect
the shell of the instrument.
Please use the original hard packing box. If you use other packing material, please
ensure at least 3 cm soft material around the instrument.
Be sure to correctly fill out and return the warranty registration card, which should
include the following information: company name, postal address, contact, phone
number, email address and problem description.
Be sure to seal the packing box with exclusive tape.
Be sure to ship to your representative or agent of Shineway Technologies, Inc in a
reliable way.
6.5 Contact Customer Service
Please check our web site (www.shinewaytech.com) for updates to this manual and
additional application information. If you need technical or sales support, please contact
local Shineway Technologies Customer Service.
Shineway Technologies (China), Inc.:
Address: Fl.7, Zhongtai Plaza, No.3 Shuangqing Rd, Haidian District, Beijing,
China
Postal code: 100085
Tel: [phone]
Fax: [phone]
Email: [e-mail]
WEB: www.shinewaytech.com
THANK YOU FOR CHOOSING
SHINEWAY TECHNOLOGIES!
DOC.P/N：MAN-OVA-EN. V300. 05/10

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