© Copyright Lenovo 2018
Chapter 2: Installing and Removing the NE2552E
23
Handling Transceiver Modules
The
switch
supports
the
10
GbE
SFP+
module,
the
25G
SFP28
module,
and
the
100G
QSFP28
module.
Before
you
install
transceiver
modules,
read
the
following
information.
The
housing
of
the
transceiver
modules
has
an
integral
guide
key
that
is
designed
to
prevent
you
from
inserting
the
module
incorrectly.
Use
minimal
pressure
when
you
insert
the
module
into
the
switch
port.
Forcing
the
module
into
the
port
can
cause
damage
to
the
module
or
port.
You
can
insert
or
remove
the
module
while
the
Lenovo
Flex
System
chassis
is
turned
on.
You
must
first
insert
the
module
into
the
switch
port
before
you
can
connect
the
cables.
You
must
remove
the
cable
from
the
transceiver
module
before
you
remove
the
module
from
the
switch
port.
Statement 3
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or
transmitters) are installed, note the following:
Do
not
remove
the
covers.
Removing
the
covers
of
the
laser
product
could
result
in
exposure
to
hazardous
laser
radiation.
There
are
no
serviceable
parts
inside
the
device.
Use
of
controls
or
adjustments
or
performance
of
procedures
other
than
those
specified
herein
might
result
in
hazardous
radiation
exposure.
DANGER
Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
Appareil À Laser de Classe 1
Some
laser
products
contain
an
embedded
Class
3A
or
Class
3B
laser
diode.
Note
the
following.
Laser
radiation
when
open.
Do
not
stare
into
the
beam,
do
not
view
directly
with
optical
instruments,
and
avoid
direct
exposure
to
the
beam.
