Black Box lb9902a Guia De Especificaciones
Thermal design for use
in harsh environments
of uncontrolled heat
or cold.
in harsh environments
of uncontrolled heat
or cold.
Rugged steel cases act
as heat sinks.
as heat sinks.
100-Mbps switching
for high-performance
LANs.
for high-performance
LANs.
Two fiber ports for
extended distances.
extended distances.
Autonegotiating on
six copper ports per
802.3u standard.
six copper ports per
802.3u standard.
AC or DC power
options.
options.
Daisychain units for
even greater distance.
even greater distance.
Top-mounted LEDs for
easy monitoring.
easy monitoring.
Plug-and-play
installation.
installation.
E
thernet is increasingly being
used in ”out-of-the-way” and
used in ”out-of-the-way” and
industrial applications, whether
it’s for heavy manufacturing or
roadside traffic control.
it’s for heavy manufacturing or
roadside traffic control.
But you want to be sure that
extreme temperatures and the
processes themselves won’t
adversely affect your network.
The BLACK BOX
processes themselves won’t
adversely affect your network.
The BLACK BOX
®
Hardened
Ethernet Switches give you
the durability you require.
the durability you require.
They’re designed specifically
for unheated and uncooled
applications, such as for use in
roadside control boxes, industrial
plants, mining and military sites,
or anywhere adverse weather or
industrial processes can wreak
havoc on your expensive circuitry.
applications, such as for use in
roadside control boxes, industrial
plants, mining and military sites,
or anywhere adverse weather or
industrial processes can wreak
havoc on your expensive circuitry.
Cased in 18-gauge steel,
the switches seal out bugs, dirt,
smoke, and other elements. The
plenum-rated switches come
packaged in a metal case and
hardware that serves as a heat sink
to draw heat away from the internal
electronics and dissipate it. To help
with this, each switch uses only
10 watts of power.
smoke, and other elements. The
plenum-rated switches come
packaged in a metal case and
hardware that serves as a heat sink
to draw heat away from the internal
electronics and dissipate it. To help
with this, each switch uses only
10 watts of power.
The switches can be used as
standalone units or mounted on a
metal shelf, pedestal, or wall.
metal shelf, pedestal, or wall.
Where the temperature can’t be
controlled, these industrial-strength
switches do the job.
Key Features
HARDENED ETHERNET SWITCHES
When used in the field, the
switches are typically fastened
to a metal pedestal or post planted
in the ground. This provides an
even larger heat sink to normalize
the operating temperature of the
internal electronics. Although
the switches’ packages aren’t
waterproof, they can be placed
in waterproof metal enclosures
to provide an all-weather
outdoor solution.
switches are typically fastened
to a metal pedestal or post planted
in the ground. This provides an
even larger heat sink to normalize
the operating temperature of the
internal electronics. Although
the switches’ packages aren’t
waterproof, they can be placed
in waterproof metal enclosures
to provide an all-weather
outdoor solution.
The ruggedness of the steel
case and temperature-control
packaging combined with the
high reliability of the design—more
than 10 years of MTBF!—make
for industrial-strength Ethernet
products.
packaging combined with the
high reliability of the design—more
than 10 years of MTBF!—make
for industrial-strength Ethernet
products.
The switches provide Fast
Ethernet switching on all ports.
All models have six 10-/100-Mbps
RJ-45 ports that autonegotiate
for speed and duplex mode. These
ports support twisted-pair copper
segment connections with 10- or
100-Mbps speed per the IEEE
802.2u standard.
All models have six 10-/100-Mbps
RJ-45 ports that autonegotiate
for speed and duplex mode. These
ports support twisted-pair copper
segment connections with 10- or
100-Mbps speed per the IEEE
802.2u standard.
For extended distance and
higher bandwidth through fiber
optic cabling, the switches
are available with a choice of
100-Mbps fiber port connectors
optic cabling, the switches
are available with a choice of
100-Mbps fiber port connectors
with multimode or single-mode
fiber connectors or a combination
of both. The fiber ports are set to
full-duplex mode. No media
converters are required.
fiber connectors or a combination
of both. The fiber ports are set to
full-duplex mode. No media
converters are required.
The switches perform high-
speed filter/forward operations on
the traffic to remove faulty packets
and minimize traffic congestion
while giving each port’s segment
a full 100 Mbps of bandwidth.
the traffic to remove faulty packets
and minimize traffic congestion
while giving each port’s segment
a full 100 Mbps of bandwidth.
To achieve high performance,
each switch is non-blocking on all
ports and has 1-MB packet buffers
and a 16K-node address table for
advanced performance
ports and has 1-MB packet buffers
and a 16K-node address table for
advanced performance
And you’re given a choice
of power supplies: standard input
for autosensing AC power or DC
power. The latter is ideal for high
reliability and convenience in out-
of-the-way locations. We even
offer an AC power supply as a
separate item, which you can use
as a backup to your primary AC
power input or apply it to the DC
model. Because the AC power
source is surge protected, it can
withstand lightning strikes. What’s
more, it features a military-style
screw-lock plug for secure
connections to the switch.
for autosensing AC power or DC
power. The latter is ideal for high
reliability and convenience in out-
of-the-way locations. We even
offer an AC power supply as a
separate item, which you can use
as a backup to your primary AC
power input or apply it to the DC
model. Because the AC power
source is surge protected, it can
withstand lightning strikes. What’s
more, it features a military-style
screw-lock plug for secure
connections to the switch.
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: info@blackbox.com
© 2002. All rights reserved.
Black Box Corporation.
01/31/2002
#26073