AN-104
MTP-MTP Insertion Loss/Return Loss Testingwith OPL-Max
Over view
There are three (3) methods to measure an MTP-MTP patch cord. The first involves using the large area detector or
integrating sphere on the OP930. The second method uses a launch and receive cable and reference insertion loss
individually per channel through an OP710 Multichannel Power Meter. The third method is a combination of the two
where insertion loss is referenced to the large area detector or integrating sphere and the test measurements are taken
individually per channel using the OP710.
Note:W The third method is less reliable because the cables are referenced to a different detector than will be used forNE
testing. These procedures also assume a test cable which has different gender connectors.
This short instruction will focus on testing an MTP-MTP patch cord using the first method.

Testing with Large Area Detector
Cable and Software Setup
Using the MTP-breakout patch cord as a launch cable, connect the fanout side to the OP930 and the MTP endface
unmated. Return loss will be referenced first.

NE W-0.00
14.00
OP930-SM-SW12-RFigure 1
L A AD-MTP
HPR

RIN5

1To open the software, open from the Start
Menu or on the Desktop. Upon starting, the1 INI File Check splash screen will pop up.
Select the appropriate setup file via the2 Selected Setup drop-down menu. It willautomatically fill in the rest of the menus withthe saved sequences and descriptions. Whenthe proper setup is selected, click 3 Launch
Application. The assumed setup file for thisprocedure is shown.

1

SANTEC CORPORATION
OptoTestCorp.

5823 Calle
Ohkusa-Nenjozaka,
Komaki,
4750
Quetzal
Aichi 485-0802,
Japan
Camarillo,
CA 93012
Doc:AN-104 Rev.A 5 /17/13+81-568-79-3536

23Figure 2

www.santec.com

SANTEC USA CORPORATION
8 05.987.170 0USA Toll Free
+1-800-726-8321
sales@ optotest.com
engineering @ optotest.com
SANTEC EUROPE LIMITED
Tel. +44-20-3176-1550

MTP-MTP Insertion Loss/Return Loss Testingwith OPL-Max

When the software starts up, the chosensequence will be shown: 4AN-104

5NE W

This can also be edited and viewed inExcel through Edit > Edit Sequence inExcel on the toolbar. 5

4Figure 37Navigate to the Setup > Data File 6 tab
to select the proper data file for the test
report and go to the Measure 7 tab toconfigure the test report headers. Whenfinished and a reference is ready to bemade, click Ref. 8

6Insertion Loss Reference

The user will be prompted to prepare for an
insertion loss reference. To do so, attach
the unmated MTP side of the launch cable to
the Large Area Detector. This will reference
insertion loss from the MTP connector.

9Figure 48Return Loss Reference

When insertion loss is completed, the user
will be prompted for a return loss reference.
Upon clicking Yes 9 a popup screen will beshown. This is for referencing return loss. 10
Note that only the first channel is going
to be referenced; the remaining channels
will copy this reference. This is because allchannels are of same length in the fanout
end of the launch cable and they are all
being referenced to the same MTP endface.

10Figure 52SANTEC CORPORATION
OptoTest
Corp.

5823 Calle
Ohkusa-Nenjozaka,
Komaki,
4750
Quetzal
Aichi 485-0802,
JapanCamarillo,
CA 93012
Doc: AN-104 Rev. A 05 /17/13+81-568-79-3536

www.santec.com

SANTEC USA CORPORATION
8 05.987.170 0sales@ optotest.com
USA Toll Free+1-800-726-8321
engineering @ optotest.com
SANTEC EUROPE LIMITED
Tel. +44-20-3176-1550

MTP-MTP Insertion Loss/Return Loss Testingwith OPL-Max

AN-104

Testing

When insertion loss is completed, the user will be prompted for testing
Now that the MTP-fanout launch cable has been referenced to the Large Area Detector, attach the MTP-MTP DUT
to the MTP side of the launch cable and the other endface to the detector. When ready, click Test. The software
willNE W
begin testing and when completed, click PreView to view the test report/data file in Excel. This test may be viewed inSetup > Sequence or Measure tabs.

-0.00
14.00
OP930-SM-SW12-R

Figure 6HPRDevice
UnderTest

L A AD-MTP
RIN5

To test the second side of the cable under test, the aforementioned procedure should be repeated with a reference
cable that has the appropriate gender. It is advised that this process be done after all cables have their firstconnector tested since it requires a full reference cycle.

3

SANTEC CORPORATION
OptoTest
Corp.

5823 Calle
Ohkusa-Nenjozaka,
Komaki,
4750
Quetzal
Aichi 485-0802,
Japan
Camarillo,
CA 93012
Doc: AN-104 Rev. A 05 /17/13+81-568-79-3536

www.santec.com

SANTEC USA CORPORATION
8 05.987.170 0
sales@ optotest.com
USA Toll Free
+1-800-726-8321
engineering @ optotest.com
SANTEC EUROPE LIMITED
Tel. +44-20-3176-1550