Promax PROLITE-67 Manuel page 82

Next are described each one of the fields on screen:
[1] Wavelenght at which it is measuring. Available wavelenght are 1310, 1490,
1550 and 1610 nm.
[2] It is an arrow which indicates if the value exceeds (arrow pointing up) or does
not arrive (arrow pointing down) to the minimum levels in order to be
graphically represented.
[3] Absolute optical signal power at the selected wavelenght. Absolute
measurement mode represents the absolute signal power value in dBm (dB
referred to 1 mW). Power measure is right only when the measured input
signal power is at the same wavelenght as selected in the instrument.
[4] Relative signal losses (attenuattion) at the selected wavelenght. It is in dB. It
is equal to:
[5] Signal status with respect to threshold values. Three status are possible:
LOW, PASS, HIGH.
[6] Upper threshold value.
[7] Maximal power value recommended for the selected wavelenght.
[8] Selected threshold group of values. Threshold values are grouped and saved
on the memory of the instrument, then later they can be selected in order to
the quality criterium to meet.
[9] Lower threshold value.
Page 20
Figure 9.- OPTICAL POWER METER.
ATTEN = Ref (dBm) - POT (dBm)
USER'S MANUAL. PROLITE-67
07-2012