POEGEM24T4SFP
User
Manual
8
1.
Introduction
1.1.
Overview
of
the
POEGEM24T4SFP
SNMP
Managed
POE
Switch
The
POEGEM24T4SFP
features
20
PoE
compliant
ports
running
at
10/100/1000Mbps
and
4
paired
10/100/1000Mbps
Copper/mini
‐
GBIC
(SFP)
ports.
The
POEGEM24T4SFP
is
designed
for
high
port
density
PoE
applications
such
as
VoIP
phone
deployment
or
IP
security
camera
environments.
The
Intelligent
Layer
2
SNMP
management
features
enable
reliable
transport
of
critical
VoIP
and
Security
data,
even
in
congested
network
environments.
VoIP
requires
prioritisation
of
Voice
Calls
over
general
Network
Data
and
Security
systems
require
not
only
prioritisation,
but
also
port
based
link
security
and
reporting
of
link
failures
to
intelligent
SNMP
applications.
These
and
other
intelligent
network
features
are
all
supported
from
the
POEGEM24T4SFP
switch.
All
ports
of
the
POEGEM24T4SFP
support
the
IEEE
802.3af
PoE
standard
for
Power
Injection
(PSE).
This
injects
PoE
power
onto
the
Cat5e
or
above
Cable
when
it
detects
the
presence
of
a
PoE
compliant
device.
When
operating
with
non
PoE
devices
the
switch
will
shut
down
the
power
injecting
circuitry
and
as
such
not
cause
any
damage
to
your
network
devices
‐
but
still
allow
them
to
run
on
the
switch
as
in
the
case
of
a
normal
Ethernet
device.
The
POEGEM24T4SFP
uses
an
injection
voltage
of
about
48VDC
on
pins
1,
2,
3,
6
Intelligent
Network
features
offer
a
complete
management
solution
that
can
enable
you
to
scale
your
network
from
a
single
departmental
switch
right
up
to
any
Enterprise
environment.
STP,
RSTP
and
MSTP
offer
network
redundancy
features,
IGMP
snooping
offers
support
for
Streaming
Video
and
Multicasting
images,
Tagged
VLAN
offers
logical
security
and
management
of
nodes
within
defined
groups.
QOS
based
on
port
priority
queues
and
TOS
bytes
ensure
efficient
forwarding
of
critical
network
data.
The
SFP
ports
can
support
the
following
optional
mini
‐
GBIC
modules
for
fibre
optic
cable
connections
(either
single
mode
or
multimode
terminated
in
LC
type
connectors):
•
1000Mbps
multimode
1000Base
‐
SX,
850nm,
max.
range
500m
•
1000Mbps
single
mode
1000Base
‐
LX,
1310nm,
max.
range
10Km
•
1000Mbps
single
mode
1000Base
‐
LHX,
1310nm,
max.
range
40Km
•
1000Mbps
single
mode
1000Base
‐
LHX,
1550nm,
max.
range
40Km
•
1000Mbps
single
mode
1000Base
‐
ZX,
1550nm,
max.
range
70Km
•
1000Mbps
single
mode
1000Base
‐
EZX,
1550nm,
max.
range
100Km
•
1000Mbps
WDM
single
mode/single
core
1310nm,
max.
range
20Km
•
1000Mbps
WDM
single
mode/single
core
1550nm,
max.
range
20Km
Notes:
*
The
two
WDM
(Wave
Division
Multiplexer)
mini
‐
GBIC
modules
are
designed
to
facilitate
a
link
over
a
single
core
of
single
mode
fibre
cable.
The
two
units
must
be
used
in
a
paired
manner,
one
at
either
end
of
the
link.
*
Mini
‐
GBIC
modules
that
are
designed
to
the
relevant
standards
should
be
compatible
with
any
make
of
switch
with
SFP
ports.
If
you
have
concerns
regarding
compatibility,
please
contact
the
supplier
of
your
mini
‐
GBIC
product.
Summary of Contents for POEGEM24T4SFP
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