Operation: Automatic Measurements; Setting The Reference; In Normal Operation - Black Box CertiFiber TS655A Manual

CERTIFIBER™
4. Operation: Automatic
All connectors and fiber-end faces need to be clean
prior to testing. Use the appropriate optical cleaning
supplies to keep connectors and adapters free from
contamination.
Both CertiFiber units come with covers on their ST
connectors to protect the connectors from dirt and
other foreign matter. Keep the connectors covered
when the units are not in use. This helps to ensure that
contaminants do not affect test measurements.

4.1 Setting the Reference

4.1.1 I N
N ORMAL
+
Accurate, repeatable measurements of optical
power and signal loss are fundamental for the
installation and maintenance of fiber optics.
To make an accurate measurement, you need
to know the loss in your attached launch cable
and the power being transmitted. (The launch
cable used to set the reference value should be
the same type of fiber as the
cables to be tested and certified,
either 50/125 or 62.5/125.)
The reference value must be
stored before a loss
measurement can be calculated.
CertiFiber requires the
reference value to compensate
for the signal loss in the launch
cable. This value is then
subtracted from the actual
34
Measurements
CAUTION!
O
PERATION