Black Box LB9214A Manual De Usuario
BLACK BOX
®
3 of 5
05/05/2010
#23276
The LB9006A-SC, LB9006A-ST, LB9021A, and LB9022A models
provide DIP switches for controlling port operation manually. For
greater versatility, the LB9007A-R3 models have a console port that
enables you to control ports and set up port-based VLANs and
trunking.
greater versatility, the LB9007A-R3 models have a console port that
enables you to control ports and set up port-based VLANs and
trunking.
Both LB9007A-R3 models support management. The management
type is an ASCII console port (cable included) that provides access to a
text-based menu. The menu permits basic configuration of port
parameters (such as changing speed or duplex settings), and has a
proprietary method for assigning the ports into VLAN and Port-
Trunking groups. The LB9007A-R3 models also feature auto MDI/
MDI-X.
text-based menu. The menu permits basic configuration of port
parameters (such as changing speed or duplex settings), and has a
proprietary method for assigning the ports into VLAN and Port-
Trunking groups. The LB9007A-R3 models also feature auto MDI/
MDI-X.
The LB9006A-SC, LB9006A-ST, LB9021A, and LB9022A models
can be rackmounted (hardware is included). The LB9007A-R3 models
are intended for desktop use; if you wish to rackmount them, contact
Tech Support for the appropriate hardware.
10-/100-Mbps Copper, 100-Mbps Fiber, Modular (LB9017A-R4,
LB9024A-R2) and Optional Fiber Uplink Modules (LB9017C-SC-R2,
LB9007C-ST-R2)
are intended for desktop use; if you wish to rackmount them, contact
Tech Support for the appropriate hardware.
10-/100-Mbps Copper, 100-Mbps Fiber, Modular (LB9017A-R4,
LB9024A-R2) and Optional Fiber Uplink Modules (LB9017C-SC-R2,
LB9007C-ST-R2)
These
Express Ethernet Switches
feature 16 or 24 auto-sensing
10-/100-Mbps RJ-45 ports. They’re an economical way to quickly
expand your 10BASE-T/100BASE-TX network with the option of
adding a fiber uplink later if you need it.
expand your 10BASE-T/100BASE-TX network with the option of
adding a fiber uplink later if you need it.
Although the switches are easy to set up, they offer powerful
features to help you control heavy network loads. The 2048 MAC
address table handles a large number of end users.
address table handles a large number of end users.
These modular switches also include an RS-232 RJ-45 console
port for basic management (cable included) that provides access
to a text-based menu. The menu permits basic configuration of
port parameters (such as changing speed or duplex settings) and
has a proprietary method for assigning the ports into VLAN and Port-
Trunking configuration groups. Remote configuration via the network
is also possible.
to a text-based menu. The menu permits basic configuration of
port parameters (such as changing speed or duplex settings) and
has a proprietary method for assigning the ports into VLAN and Port-
Trunking configuration groups. Remote configuration via the network
is also possible.
Trunking provides extra bandwidth of up to 400 Mbps between
two connected switches. You can also regulate standard backpressure
and autonegotiation on individual ports. The crossover button enables
you to configure one port as an uplink. These switches occupy only
1U of rack space and are easily rackmountable with the included
hardware.
100-Mbps Fiber Express Ethernet Switch
(LB9008A-FO-R2)
and autonegotiation on individual ports. The crossover button enables
you to configure one port as an uplink. These switches occupy only
1U of rack space and are easily rackmountable with the included
hardware.
100-Mbps Fiber Express Ethernet Switch
(LB9008A-FO-R2)
For simplicity, speed, and distance, choose this fiber-only switch.
It provides eight ports of blazing speed and distances of up to 1.2 miles
(1.9 km) with all the security of fiber. Best of all, this entry-level switch
is simple to set up—just plug-and-play.
(1.9 km) with all the security of fiber. Best of all, this entry-level switch
is simple to set up—just plug-and-play.
The switch has SC-style fiber connectors and supports 1024 MAC
address entries. It has DIP switches and is easy to rack-mount with
the included hardware.
the included hardware.
Layer 2 switching.
A switch helps provide a clear path from each workstation
to its destination on demand, whether that destination is
another workstation or a server. In contrast with bridges and
routers (which process data packets on an individual, first-
come, first-served basis), switches maintain multiple, simulta-
neous data conversions among attached LAN segments.
another workstation or a server. In contrast with bridges and
routers (which process data packets on an individual, first-
come, first-served basis), switches maintain multiple, simulta-
neous data conversions among attached LAN segments.
From an end-user workstation’s perspective, a switched
circuit appears as a dedicated connection—a direct, full-
speed LAN link to an attached server or other remote LAN
node. Although this technique is somewhat different from
what a LAN bridge or router does, switching hubs are based
on similar technologies.
speed LAN link to an attached server or other remote LAN
node. Although this technique is somewhat different from
what a LAN bridge or router does, switching hubs are based
on similar technologies.
Switching hubs that use bridging technologies are called
Layer 2 switches—a reference to Layer 2 or the Data Link
Layer of the OSI Model. These switches operate using the
MAC addresses in Layer 2 and are transparent to network
protocols. Layer 2 switches connect different parts of the
same network, as determined by the MAC address contained
in the packet. You can install a Layer 2 switch anywhere on
a network without reconfiguring the LAN.
Layer of the OSI Model. These switches operate using the
MAC addresses in Layer 2 and are transparent to network
protocols. Layer 2 switches connect different parts of the
same network, as determined by the MAC address contained
in the packet. You can install a Layer 2 switch anywhere on
a network without reconfiguring the LAN.
technically Speaking
Modular Express Ethernet Switch (LB9217A-R2) and
Modules (LB9213A–LB9216A, LB9218A–LB9219A, LB9220C-ST-R2,
LB9220C-SC-R2)
Modules (LB9213A–LB9216A, LB9218A–LB9219A, LB9220C-ST-R2,
LB9220C-SC-R2)
For the rapidly changing and growing network, the 2
1
⁄
2
-port
Modular
Express Ethernet Switch
offers an affordable modular
solution that enables you to customize your switch with any
combination of copper and fiber ports as well as fiber uplinks.
combination of copper and fiber ports as well as fiber uplinks.
The switch has two slots that you can fill with 8-port modules in
combinations of 100-Mbps multimode fiber ports or 10/100 RJ-45
copper ports. A third “half” slot is reserved for a 1-port fiber uplink
module.
copper ports. A third “half” slot is reserved for a 1-port fiber uplink
module.
The switch supports several “smart” features such as port-based
VLAN and MAC-based trunking.
The 10/100 copper ports are autosensing for speed and duplex,
and they support auto MDI/MDI-X. Speed and half- or full duplex can
be programmed as either fixed or auto negotiating. Fiber ports are all
100-Mbps Fast Ethernet and come in a choice of ST or SC connectors.
be programmed as either fixed or auto negotiating. Fiber ports are all
100-Mbps Fast Ethernet and come in a choice of ST or SC connectors.
The switch is rackmountable, occupying only 1U of rack space in
a standard 19" rack. Rackmount ears are included.