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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"。
Use the same method to check the relative attenuation value.
5.2.6 After your test，press"
dust-proof cap。
6. Maintenance
1. It is important to keep all optical connectors and surfaces free from oil,
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F i b e r O p t i c S o l u t i o n s P r o v i d e r
Draft15
"to turn off the unit and cover back the
13/15
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