When you insert the ferrule into an adapter, make sure the ber end does
not touch the outside of the mating adapter. This ensures you will not rub
the ber end against any undesirable surface. Many connectors have a keyed
slot provided for optimum measurement repeatability that also helps to align
and seat the two connectors. After the ferrule is properly seated inside the
other connector, use one hand to keep it straight, rotate it to align the key,
and tighten it with the other hand.
Most connectors using springs to push ber ends together exert one to two
pounds of force. Over-tightening or under-tightening these connectors can
result in misalignment and nonrepeatable measurements. Always nger
tighten the connector in a consistent manner. Refer to the manufacturer's
data
sheet
for
any
torque
recommendations
.
CAUTION
OPTION
3XX
INSTRUMENTS:
T
o
avoid
damage
,
handle
the
pigtail
ber
with
care
.
Use
only
an
appropriate
ber
cleaver
tool
for
cutting
the
ber
.
Do
not
pull
the
bare
ber
out
of
its
jacket,
crush
it,
kink
it,
or
bend
it
past
its
minimum
bend
radius
.
Summary
When
making
measurements
with lightwave
instruments
or
accessories
,
the
following
precautions
will
help
to
insure
good,
reliable
,
repeatable
measurements:
Conrm
connector
type
compatibility
.
Use
extreme
care
in
handling
all
lightwave
cables
and
connectors
.
Be
sure
the
connector
interfaces
are
clean
before
making
any
connections
.
Use
the
cleaning
methods
described
in
this
handbook.
K
eep
connectors
and
cable
ends
covered
when
not
in
use
.
xxiv
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