14
Loopback Mode Reference Using Test Method B
Setting a Method B reference using the Megger provided duplex reference cord. If the fiber optic link uses non-SC style connectors refer
to Appendix B for establishing a reference using the modified test method B setup.
1.
Attach either the SCT-MMA or SCT_SMA fiber optic adapter
2.
Using the navigation keys select “Autotest” from the “HOME” menu and press [ENTER].
3.
Select the desired project and press [ENTER].
4.
Using the navigation keys select “Set Reference” from the “HOME” menu and press [ENTER].
5.
Verify the fiber optic reference cord is attached per the displayed reference configuration.
6.
Press the [TEST] button. If the fiber optic link is incorrect the SCT will display the Fiber Map to prompt a correction.
7.
When the reference measurement is complete the SCT will display the measured power and the option to set the reference
patch cord lengths.
8.
Verify the measured power, and set the patch cord lengths if desired, then press [ENTER]
9.
Verify the fiber optic reference cords will be attached per the displayed measurement configuration and press [ENTER]
SCT PRIMARY
`
Duplex SC - SC style fiber
optic reference cord
Do not disconnect the reference cord from the output
connector. Disconnecting the reference cord from the
output connector will invalidate the reference setting.
Caution
Figure 3 Loopback Mode Method B Reference Setting