Santec PEM-320, Operation Manual

Page: 24 / 46

POLARIZATION EXTINCTION RATIO METER PEM-320
7-3
CAUTION
7.2. Optical Fiber Connection
Before connecting an optical fiber, always clean the end face of the connector. Dust or
dirt on the connector face will result in optical loss and consequently inaccurate
measurements.
Before connecting the input light, check that the optical power does not exceed the
maximum specified level for the PEM-320. The maximum level of the standard model
PEM-320 is +10dBm. If the optical input exceeds this limit, there is a risk of damage to
the units's internal optical elements.
Remove the dust cover from the optical input connector and connect the optical fiber to the
connector.