Fo-Link F-501 FTTX New PON User manual

PON Optical Power Meter
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Notice
Trademarks
All trademarks mentioned in this manual are registered
property of our.
Explanation
The content of this manual is subject to our explanation.

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Catalog
SECTION IOVERVIEW ............................................................................................3
SECTION Ⅱ
ⅡⅡ
ⅡSPECIFICATIONS..................................................................................4
SECTION Ⅲ
ⅢⅢ
ⅢSTANDARD PACKAGES.........................................................................5
SECTION Ⅳ
ⅣⅣ
ⅣPANELAND FUNCTIONS.......................................................................5
SECTION Ⅴ
ⅤⅤ
ⅤOPERATION.......................................................................................12
SECTION Ⅵ
ⅥⅥ
ⅥTROUBLESHOOTING…………………………….16
SECTION Ⅶ
ⅦⅦ
ⅦATTENTIONS...................................................................................16
SECTION Ⅷ
ⅧⅧ
ⅧWARRANTIESAND SERVICING………………….17

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Section I Overview
PON optical power meter is designed for designation, operation and maintenance
of FTTX network. It is able to concurrently measure the optical power values of voice,
data and video signals. It is an ideal choice for the construction and maintenance of
FTTX network works.
Features :
(1)In BPON / EPON / GPON architecture test voice, data and video signals
synchronized measurement and display.
(2)Simultaneously test the three wavelengths 1490,1550,1310 of PON system.
(3)For 1310nm wavelength the upstream burst-mode tests.
(4)Through the PC software, set the threshold, upload data, calibration wavelength.
(5)With the PC through the USB connection for data transfer.254 records in
equipment or software stored on a flight, view, delete.
(6)Containing common optical Power Meter module, including 1310,1490,1550 three
calibration wavelength.
(7)Chinese / English display device and software interface language.
(8)Provide ten threshold selection, three LED visual display were metering Road
status.
(9)Ten minutes after the device can be set to automatically shut down; can be date and
time settings.
(10)Beautiful rubber button design, button sensitivity, longer life, higher reliability.
Applications :
FTTx/PON opening: it is used to measure all PON signals during opening stage,
in order to verify and ensure network standards are satisfied;
FTTx/PON maintenance: it is used to solve various transfer problems, e.g.: dirty

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connector ends, bending, broken optical fiber, any of such problems may produce
signal loss or decrease transfer performance.
Section Ⅱ
ⅡⅡ
ⅡSpecifications
Calibrating wave length 1310 upstream
measurement
1490 downstream
measurement
1550
downstream
measurement
Spectral passband (nm) 1260～1360 1470～1505 1535～1570
Measurement range (dBm) -40～+10 -40～+10 -40～+20
Isolation 1310nm (dB) - >40 >40
Isolation 1490nm (dB) >40 - >30
Isolation 1550nm (dB) >40 >40 -
Measurement accuracy
Connatural uncertainty (dB) ±0.5
PDL (dB) <±0.25
Linearity (dB) ±0.1
Pass through insertion loss
(dB) <1.5
General Indicators
Display LCD:320×240
Unit dB/dBm/xW
Resolution 0.01dB

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Input voltage 5V
Rechargeable battery 2 AA2.4V
AC adapter 5V
Type of optical fibre Single mode optical fiber
Working temperature -10～60℃
Storage temperature -25～70℃
Dimensions (cm) 16.5×8.0×3.5cm
Section Standard PackagesⅢ
ⅢⅢ
Ⅲ
Section Panel and FunctionsⅣ
ⅣⅣ
Ⅳ
4.1 Operating Instructions
1 PON optical power meter 1 set
2 User Guide 1 copy
3 Meter bag 1 pcs
4 AA1.5V rechargeable battery 2pcs
5 Battery charger 1pcs
6 Pass Certificate 1pcs
7 Desiccant 1 bag

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4.2
Function description
4.2.1 Power on
OLT/VIDEO(1490/1
550)nm connector
O N T ( 1 3 1 0 n m )
connector
Auto
power off
B a tt e r y
p o w e r
d i s p l a y
LCD
USB data cable
Auto power off
Indicator light
Menu
Select functions
Power ON/OFF
Confirm
Cancel Select functions

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Press to power on the device, the following screen will appear：
There are the measurement results of three wavelength appearing on the screen,
i.e.: 1310nm upstream test and 1490nm/1550nm downstream test. The measurement
value will appear when there is light passing through the optical channel,otherwise
“LOW” will appear. Icon tips off automatically after ten minutes,press
“ ”, Show or hide the icon that represents the settings automatically shut
down or canceled.
4.2.2 Power off
While the power meter is on, press and hold it for about 2 seconds to
power off the device.

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4.2.3
Set threshold value
Press“ ” While in main interface，the following feature set:
Relative value measurement
According to the test requirements, choose to display different wavelengths and
reference values, relative power value = absolute power value - reference value.
press“ or ”to choose different wavelength, press“ ”change the
reference value.
Threshold selection
Reference
Relative power

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Threshold of 10 groups chosen to provide, with three lights on the keypad to use.
Each light has three states: green, testing equipment for normal①; yellow, can be②
used but problems; red, testing equipment for an exception③.
Press or 1db increase or decrease the threshold. Press Skip to
next edit (or operation)
Unit switching
units used “dBm”or“xW”. Press ,choose or change option.
Press exit and cancel the setup.
Language switching
Set the instrument user interface language, there are two options for Chinese and
English. Press“ ”，“ or ” change option. Press“ ” exit and
cancel the setup.

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Time set
Set the current time, shown as year - month - day - time – minute.
Press“ ”change year, then press“ ”change month, followed by modification
date, time and minutes，after setting minutes and then press“ ”save time setting
and exit。Use“ or ”modify the value. In the setup process press“ ”
exit and cancel the setup.
Historical data
View and delete historical data stored in meters. There are three options are
"Record View", "delete the current" and "Delete All, use“ or ” change
option.
①
①①
①“Record View”, press“ ”,display to view historical data,

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press“ ”exit.
As above，Matt Way detection 1310nm, 1490nm display-40dBm, 1550nm
display-40dBm, when the display light to enter the corresponding test value. Thresh
Sel 5 show that the selection of the fifth set threshold. Time is at 15:45 on June 2nd,
2009.0001/0002 data, 0001 is the current view of the data serial number, 0002 is the
instrument in the total number of historical data。use“ or ”change the
current view of the data sequence number. No historical data show that "No Record!
②
②②
②．“Delete the current", that is to delete the current view of the historical
record。Press“ ”. 0001/0006 meaning as same as the above.
③
③③
③．"Delete all", that is, delete all history.Press“ ”,prompted to "Delete all,

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press“ ”to delete, “ ”to cancel. Press“ ”to delete, display the "Delete ..."
that is being deleted, delete the automatically disappear.
Section OperationⅤ
ⅤⅤ
Ⅴ
5.1Press“ ” to power on the device into the PON testing interface.
press“ ”to select whether to automatically shut down after ten minutes.
Press“ ”into menu

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Use“ or ”into selected threshold option, press“ ”.
Use“ or ” select the desired threshold. for example, select the threshold
value of the name test 1 as the first threshold group, press“ ” the change will
take effect.
Press“ ” go back to test page.
5.2 Access to measuring optical fiber
Pure optical fiber measurement, connected to the instrument OLT/VIDEO and
ONT（FC/SC/ST）.
ONT(1310nm)
OLT/VIDEO
(1490/1550nm)

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Note that the measured fiber connector type, connector type does not
match the access instrument, which may damage the instrument's output optical head,
and get an incorrect measurement results.
It supports measurement of three wavelength i.e.: 1310nm upstream, 1490nm
and 1550nm downstream at the same time.
For example: threshold value of the name test 1(+3dBm,-20dBm,-30dBm),the
measurement readings of the meter are: the value for 1310nm upstream test is -10dBm,
which is within +3～-20dBm, it means that the optical circuit is normal, so the power
value for 1310nm is displayed in green, if the power value falls within -20～-30dBm,
it means that the optical circuit may be wrong but is still usable, so in the testing

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screen, the power value for 1310nm is displayed in yellow, if the power value falls
outside of threshold value, >+3dBm or <-30dBm, it means that there exists abnormal
in optical circuit, the power value of the optical circuit is too strong or too weak, so in
the testing screen, the power value for 1310nm is displayed in red. So does 1490nm
and 1550nm test.
5.3
Save the test records
Press“ ”, Prompted to save the test records，as shown above, data record
number is 2，Confirm the save by “ ”, press“ ”cancel. Test records can view
stored in the "Record View" from "historical data" menu "Record View".
5.4 Data upload
The measurement results can be saved in the device, or be uploaded to PC using
upper computer software. Connect one end of data cable to the port of PC Link in the
device, the other end USB port of PC, run the upper computer software, and set the
software as per default configuration, then you can directly click “Upload” on upper
computer to transfer the data to PC.
5.5 Finish the test. Instrument interfaces to keep clean, covered with dust cap
immediately after shutdown

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Section Ⅵ
ⅥⅥ
ⅥTroubleshooting
Section Ⅶ
ⅦⅦ
ⅦAttentions
7.1 Regularly clean the end of sensor, keep it free of grease, dirt. Don’t use dirty,
non-standard connector, don’t insert in the end in poor polishing conditions, otherwise
the sensor's end may be damaged, otherwise the performance of entire system may
degrade.
Fault performance Possible causes Solution
No LCD display.
Or can not boot
1.Power is not turned on.
2.Power .isn’t enough
1.press“ ” open
2.Replace the batteries
Then turn off
automatically
1.Power isn’t enough.
2.To set an automatic
shutdown
1.Replace the batteries.
2.Check the product automatic
shutdown settings.
Measurement error or
instability
1.Connector is not clean.
2.Fiber connected
properly
1.Clean the connector.
2.Re-connection fiber

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7.2 Use only one adapter if possible.
7.3 If you are not going to use the tester for the time, cover the dust-proof cap
immediately to keep the end clean. Long-time exposure in air may gather dust
therefore influencing measurement accuracy.
7.4 Plug and unplug the adapter with care, don’t leave any scratches on the ports.
7.5 Regularly clean the surface of sensor, when cleaning the sensor, please gently
wipe the surface using cotton swab by circling the perimeter.
7.6 Handle the tester with care, protect it against fall or collision.
Section Ⅷ
ⅧⅧ
ⅧWarranties and Servicing
No parts of the product can be repaired by user himself.
1. Warranty period: 12 months since the date of shipment. If any product defect
within the above said period, we will repair or replace the defective product,
however, in no events we will bear responsibilities in excess of the product’s
sales price.
2. If any fault occurs during usage, user can first solve them according to above
trouble-shooting instructions, however, if such efforts fail, the user shall not open
the cabinet of the product by himself, he should contact our market department
or local dealers.
For any quality problem arising of production defect, the manufacturer will repair or
replace the defective product free of charge, however, any damage caused by
improper-operation or good product will not be covered by the above warranty。
Notwithstanding the foregoing terms, any problem/fault caused for the following
reasons are not included warranty.
1. The product has been repaired or modified without the authorization of the

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manufacturer
2. The problem or fault arising of improper use, negligence or incidence
Warranty Registration
The product is accompanied by a Warranty Registration Card, please complete it and
send it back to us together with a photocopy of the invoice, they will be used as the
voucher for any maintenance, technical update or calibration that we may make in the
future.

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Product Warranty Card
Product Type:
Product Serial Number:
Buy Date:
User Name:
TEL: FAX:
Address:
Zip Code: E—mail:
Seal:
(Please keep this together, cut the second line and on this basis, send.)
----------------------------------------------------------------------------------
(Please cut along the dotted line and return the company.)
Product Type:
Product Serial Number:
Buy Date:
User Name:
TEL: FAX:
Address:
Zip Code: E—mail:
Notes:
User should return this part to the Company in a month, when user
purchase the products.Just do that, it’s valid.