CHAPTER 5: Measurements
When OMNIFiber is attached to OMNIRemote, the remote unit can be used as a light source. With the OMNIFiber adapter attached, press the lambda key to activate the light source and provide continuous or modulated light at 850 or 1300/1310 nm. The green LED of the appropriate wavelength will blink rapidly when modulated light is transmitted. If the transmitted light is continuous, the green LED will not blink.
Press 
to find the reference value, place it in the appropriate field, and start calculating the loss.
Press ESC to exit the Power Meter screen.
5.5 Coaxial Measurements with OMNIScanner
COAX TESTS
In coaxial cable, an insulated wire runs through the middle of the cable and a second wire, called the shield, surrounds the insulation of the inner wire like a sheath. The outer insulation jacket wraps around the second wire.
The Coax Tests screen displays the measured Length, Impedance, and Termination.
The Length function measures the cable length. OMNIScanner will display the overall length in meters or feet. If NEF (No End Found) is displayed instead of a value, the cable is either too long or terminated in its characteristic impedance.
Impedance defines the relationship of voltage and current in an electrical circuit.
95
