POEGEM24T4SFP
User
Manual
19
2.1.2.
Cabling
Requirements
To
help
ensure
a
successful
installation
and
keep
network
performance
at
optimum
levels,
take
care
to
use
Cat.5e
grade
or
higher
cabling.
Ensure
that
stranded
core
UTP
cable,
if
used,
runs
for
no
more
than
10
metres,
and
that
solid
core
runs
for
a
maximum
of
100
metres.
Poor
cabling
is
the
most
common
cause
for
network
dropouts
or
poor
performance.
2.1.2.1.
Cabling
Requirements
for
UTP
Ports
•
For
Ethernet
copper
network
connections,
the
UTP
cable
used
must
be
Cat.
3
grade
as
a
minimum,
with
a
maximum
length
of
100
metres
•
For
Fast
Ethernet
copper
network
connections,
the
UTP
cable
used
must
be
Cat.
5
grade
as
a
minimum,
with
a
maximum
length
of
100
metres
•
For
Gigabit
Ethernet
copper
network
connection,
UTP
cable
used
must
be
Cat.5
grade
or
higher,
with
a
maximum
length
of
100
metres.
Cat.5e
grade
UTP
cable
is
recommended.
2.1.2.2.
Cabling
Requirements
for
1000SX/LX/ZX
SFP
Modules
There
are
two
categories
of
fibre
optic
cable
‐
multimode
(MM)
and
single
mode
(SM).
The
later
is
categorised
into
several
classes
by
the
distance
it
supports.
These
are
SX,
LX,
LHX,
ZX
and
EZX.
The
majority
of
mini
‐
GBIC
modules
available
use
a
LC
type
connector.
The
connector
types
used
currently
on
Alloy
mini
‐
GBIC
modules
are
LC
and
WDM
SC,
for
the
following
module
types:
•
Gigabit
Fibre
with
multimode
LC
SFP
mini
‐
GBIC
modules
•
Gigabit
Fibre
with
single
mode
LC
mini
‐
GBIC
modules
•
Gigabit
Fibre
with
single
mode/single
core
WDM
SC
1310nm
SFP
mini
‐
GBIC
modules
•
Gigabit
Fibre
with
single
mode/single
core
WDM
SC
1550nm
SFP
mini
‐
GBIC
modules
The
following
table
lists
the
types
of
fibre
optic
cable
that
are
supported
by
SFP
mini
‐
GBIC
modules
installed
in
Alloy
POEGEM24T4SFP.
Other
cable
types
not
listed
here
may
be
supported;
please
contact
the
supplier
of
your
switch
for
details.
IEEE
802.3z
Gigabit
Ethernet
1000SX
850nm
Multimode
Fibre
Cable
and
Modal
Bandwidth
Multimode
2.5/125
μ
m
Multimode
50/125
μ
m
Modal
Range
Modal
Range
160MHz
‐
Km
220m
400MHz
‐
Km
500m
200MHz
‐
Km
275m
500MHz
‐
Km
550m
1000Base
‐
LX/LHX/XD/ZX
Single
Mode
Fibre
9/125
μ
m
Single
Mode
transceiver
1310nm
10Km,
40Km
Single
Mode
transceiver
1550nm
40Km,
70Km,
100Km
1000Base
‐
LX
Single
Fibre
(WDM
SC)
Single
mode
*20Km
TX(Transmit)
1310nm
RX(Receive)
1550nm
Single
mode
*20Km
TX(Transmit)
1550nm
RX(Receive)
1310nm
Cont.
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