Sun Microsystems SUN-VOA100 Series User manual

English
User’s Manual
SUN-VOA100 Series
Handheld Attenuator
All the trademarks mentioned in this manual are registered property of Sun Telecom.
The right to interpret this manual is reserved by Sun Telecom.

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CONTENTS
1.Overview..................................................................................................2
2.Specification............................................................................................2
3.Standard Accessories.............................................................................3
4．Function ................................................................................................4
5．Operation ............................................................................................10
6. Maintenance .........................................................................................13
7. Troubleshooting...................................................................................14
8. Notices..................................................................................................14
9. Warranty................................................................................................15

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1. Overview
Application
SUN-VOA100 series handheld attenuators are designed to continuously
and variably attenuate the optical signal.
The main application of this unit is for the laser system online test, so it is
applicable for the PDH、SDH which include the communication instrument,
and CATV system.
Function and Features
With built-in neutral density filter, VOA attenuate the optical signal through
the rotating dial on the keypad .The attenuation range is from 2.5-60dB.
2. Specification
Model
SUN-VOA100-H
SUN-VOA100-HB
Calibration Wavelength
(nm)
1310/1490/1550/1625
850/1300
Fiber Type
9/125um SM
62.5/125 (50/125
is option)
Connector
FC/PC (SC/FC/ST interchangeable port is
optional)
Attenuation Range
2.5～60dB
Resolution
0.05dB
Min Insertion Loss
<2.5dB
Linearity
±0.5 dB
Repeatability
±0.2 dB
Overall Attenuation
Acuracy
±0.8 dB

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3. Standard Accessories
1. Main Unit--------------------------------------------------------------------------1
2. Manual----------------------------------------------------------------------------1
3. Rechargeable Battery -------------------------------------------------1
4. Power Adapter -----------------------------------------------------------1
5. Recharger------------------------------------------------------------------------1
6. Cotton Swab---------------------------------------------------------------------1
Back Refletion
> 35 dB（typical value :40 dB）
Max Acceptable Input
+20 dBm
Rechargeable Battery
7.4V
Power Adapter
7～8.5V
Working Temperature
0～40℃
Storage Temperature
-10～60℃
Humidity
0～85%
Weight
450g

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4. Function
4.1Keypad
①“ ”key：Press this key for 2 seconds to turn on/off the unit. Press it shorter
time to activate or deactivate the auto-off function.
②“MENU/ENTER” Key：Menu/confirm。
③“▲”Key：Select the function or value increase。
④“▼”Key：Select the function or value decrease。
⑤“CANCEL”Key：Exit/cancel。
⑥“λ” Key: Switch the wavelength。

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⑦“Rotating Dial”Key：Rotate it clockwise to increase attenuation value,
otherwise decrease the value. The attenuation step is 0.5dB.
4．2 Function
4.2.1Press“ ”key，to turn on the unit. It displays the absolute or relative
attenuation value. Press“ ”key shorter, then the auto-off function is
activated. The unit will auto-shut down after 10 minutes idle time.
Draft1

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Draft2
4.2.2 Press“MENU/ENTER”key，it displays all the settings，press“▲”“▼”to
select the item to be revised ,press “CANCEL”to revert to the previous
menu.
Draft3
① Edit the wavelength
Under the option of “edit the wavelength” ,press “MENU/ENTER”key to
display the status of wavelength :1300/1310/1490/1550/1625nm.

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Draft4-1
Draft4-2
Press“MENU/ENTER”again，change the status of the wavelength. It doesn’t
show the hidden wavelength when switching the wavelength.
Draft5

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②Set “REF”
Under this option, press “MENU/ENTER” key to set reference value.
Draft6
Select the option 1,set the current attenuation value as the reference value.
Press “MENU/ENTER” back to draft 2
Select the option 2, edit the value as the reference value.
Press“▲”“▼”to increase or decrease the value. Press“MENU/ENTER”to
choose the value to be revised. It is back to the draft 2 interface after
you edit.
Draft 7

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③Display the relative /absolute value
Draft 8
Choose to display the absolute value, it is back to draft 1 interface; choose to
display the relative value, it is back to draft 2 interface。
④LCD backlight adjustment
Draft 9
Press “▲”“▼”to adjust the lightness of LCD screen.（draft 9）。

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5. Operation
5．1 First, please correctly put the battery in unit.
Press“ ”to turn on the unit，it will show the absolute or relative attenuation
value interface（draft 10）。
Draft10
When the battery is low or empty “ ”，please take out and charge it on
time. When the battery is not work, you could also insert the power supply
to power the whole unit. This icon “ ” means the external power is under
use. The auto-shut down function is invalid if using the external power.
5．2 Connect it to the light source。
5.2.1 Take out the dust-proof cap and connect the light source。
5.2.2 Press“λ”key to select the wavelength。
5.2.3 Set2.5dB in draft 10 as the reference value。
Press“MENU/ENTER”to enter menu，Select“REF” via“▼”key，then

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press“MENU/ENTER”to confirm and enter the “REF value set/edit menu”
（draft 6）。
① Select “1.set REF value” option（draft 11）, REF value is
2.50dB，press “MENU/ENTER”to confirm and return to interface
draft 12。Press“CANCEL”to cancel the operation。
Draft11
Draft12
②Press“▼”key to select“2.set REF value”option，user could define the

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REF value. Press “MENU/ENTER” to edit it（draft 13）。Press“▲”“▼”to revise
change the value and press“MENU/ENTER”to choose the digits to be
revised and press it again to save. Press“CANCEL” key to exit or cancel。
Draft13
5.2.4 After setting REF value as 2.5dB（draft 12），please clockwise rotate the
“rotating dial”, the attenuation step is 0.5dB.If you continuously rotate it to
attenuation value -19.15dBr (draft 14),it means this optical link relatively
attenuates -19.15dBr.
Draft14
5.2.5 Check the absolute attenuation value of relative value -19.15dBm

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Press “MENU/ENTER” to enter the menu ，press“▼”to select“display
absolute/relative value”option 选，Press “MENU/ENTER”key again to enter
the absolute/relative value menu（draft 8）。
Select “1.display absolute power”，press “MENU/ENTER” to confirm and
back to interface draft 15.Absolute attenuation value is 21.65dB。It is
calculated by formula “relative power=absolute power-reference power”。
Draft15
Use the same method to check the relative attenuation value.
5.2.6 After your test，press“ ”to turn off the unit and cover back the
dust-proof cap。
6. Maintenance
1. It is important to keep all optical connectors and surfaces free from oil,

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dirt or other contamination to ensure proper operation.
2. Keep using one type of adapter to avoid excess loss from different
connectors.
3. Please turn off the unit and cover dust proof cap after your test.
4. Please use the power adapter within regulated voltage when using
external power
5. Please take out the battery when it is not in use for a period of time.
7. Troubleshooting
Description
Possible Reason
Method
No display after
turning on the unit
Battery is weak/Others
Fail to turn on the unit
Turn on the unit
again/Charge battery
Wrong test result
Dirty connector or bad
connection
Clean the connector
Re-connect the fiber
8. Notices
8.1 Before the test, please ensure the connector is clean.
8.2 Cover well the dust-proof cap when not in use
8.3 Use the original charger to charge the battery. Otherwise, it will lead to
serious damages.

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9. Warranty
Caution: Repair it in the field is NOT recommended.
Sun Telecom warrants that SUN-VOA100 series Variable Optical Attenuators
will be free from defects in material and workmanship for a period of 18
months. This warranty covers the original user only and is not transferable.
Should the device fail at any time during this warranty period, Sun Telecom
will, at its sole discretion, replace, repair or refund the purchase price of the
product.
This warranty is limited to defects in workmanship and materials and does not
cover damage from accident, acts of God, neglect, contamination, misuse or
abnormal conditions of operation or handling.
To establish original ownership and provide date of purchase, please
complete and return the registration card to Sun Telecom. This warranty will
not go into effect until we have received the warranty registration.
A warranty registration card is included with the original shipment of
equipment. Please take a few moments to fill out the card and mail or fax it to
us to ensure proper initiation of your warranty term.

Warranty Registration Card
Serial Number:
Model Number:
Date of Purchase:
Company Name:
Company Address:
TEL: FAX:
E-mail:
Note: Please fax this note within one month from the date of receiving
units.
YOUR OPINION:
Do you have any comments on the quality of this product or the service from
us?
SHANGHAI SUN TELECOMMUNICATION CO., LTD.
Building No.145 Lane 666, Xianing Rd.
Jinshan Industrial Zone, Jinshan District
ShangHai, China 201506
Tel: [phone] Fax: [phone]
E-mail: [email protected]
http://www.suntelecom.cn