LGB516A
LGB524A
Gigabit Unmanaged Switch with SFP Uplinks
Solid Gigabit switching in a rackmount chassis.
LGB516A has (12) RJ-45 ports and (4) RJ-45/SFP combo ports.
LGB524A has (20) RJ-45 ports and (4) RJ-45/SFP combo ports.
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax
724-746-0746 • Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence,
Customer
Support
Information
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FCC Class B and IC RFI Statements/CE Warning
FEDERAL COMMUNICATIONS COMMISSION AND
INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS
Class B Digital Device. This equipment has been tested and found to comply with
the limits for a Class B computing device pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. However, there is no guarantee that
interference will not occur in a particular installation. This equipment generates,
uses, and can radiate radio frequency energy, and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. If this equipment does cause harmful interference to radio or
telephone reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
• Consult an experienced radio/TV technician for help.
Caution:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
To meet FCC requirements, shielded cables and power cords are required to
connect this device to a personal computer or other Class B certified device.
This digital apparatus does not exceed the Class B limits for radio noise emission
from digital apparatus set out in the Radio Interference Regulation of Industry
Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les
limites applicables aux appareils numériques de classe B prescrites dans le
Règlement sur le brouillage radioélectrique publié par Industrie Canada.
CE Warning
This is a Class B product. In a domestic environment, this product may cause
radio interference in which case the user may be required to take adequate
measures.
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NOM Statement
Normas Oficiales Mexicanas (NOM)
Electrical Safety Statement
INSTRUCCIONES DE SEGURIDAD
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes
de que el aparato eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas para
referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de
operación deben ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la
tina de baño, lavabo, sótano mojado o cerca de una alberca, etc.
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean
recomendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea
recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá
lo descrito en las instrucciones de operación. Todo otro servicio deberá ser
referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera
su uso. La colocación del aparato eléctrico sobre una cama, sofá, alfombra o
superficie similar puede bloquea la ventilación, no se debe colocar en libreros o
gabinetes que impidan el flujo de aire por los orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como
radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores)
que producen calor.
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo
descrito en el instructivo de operación, o como se indique en el aparato.
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del
equipo no sea eliminada.
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NOM Statement
13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean
pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo
particular atención a los contactos y receptáculos donde salen del aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las
recomendaciones del fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de
energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado
por un largo periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean
derramados sobre la cubierta u orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en su
desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.
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Table of Contents
Table of Contents
1. Specifications ................................................................................................. 7
2. Overview........................................................................................................ 8
2.1 Introduction............................................................................................. 8
2.2 Features................................................................................................... 8
2.3 What’s Included ...................................................................................... 9
2.4 Hardware Description.............................................................................. 9
2.4.1 Gigabit Unmanaged Switch with SFP Uplinks, 16-Port.................. 9
2.4.2 Gigabit Unmanaged Switch with SFP Uplinks, 24-Port ................10
3. Connections..................................................................................................12
3.1 Switch/Hub Connected to 24-Port Gigabit Unmanaged Switch
with SFP Uplinks (LGB516A)...................................................................12
3.2 PC/Other Devices Connected to 24-Port Gigabit Unmanaged Switch
with SFP Uplinks (LGB516A)...................................................................12
4. Troubleshooting.............................................................................................13
4.1 Contacting Black Box .............................................................................13
4.2 Shipping and Packaging .........................................................................13
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Chapter 1: Specifications
1. Specifications
Buffer Memory — LGB516A: 340 KB;
LGB524A: 500 KB
Certifications — FCC Class B, CE
Filtering/Forwarding Rates — 1000-Mbps port: 1,488,000 pps;
100-Mbps port: 148,800 pps;
10-Mbps port: 14,880 pps
Jumbo Frames — 9.6 KB
Method — Store-and-forward
MAC Address — 8 K
Standards — IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.3ab
1000BASE-T, IEEE 802.3z, IEEE 802.3x flow control
Transmission Media — 10BASE-T CAT 3, 4, 5 UTP/STP;
100BASE-TX CAT5 UTP/STP;
1000BASE-T CAT5e UTP/STP
Connectors — LGB516A: (12) RJ-45 ports, (4) combo SFP ports;
LGB524A: (20) RJ-45 ports, (4) combo SFP ports
Indicators — LGB516A: (37) LEDs: (16) Link/Act, (16) 1000M, (4) F1–F4,
(1) Power;
LGB524A: (53) LEDs: (24) Link/Act, (24) 1000M, (4) F1–F4, (1) Power
Temperature Tolerance — Operating: 32 to 104° F (0 to 40° C);
Storage: -4 to +194° F (-20 to +90° C)
Relative Humidity — 10 to 90% noncondensing
Power — Input: 115–240 VAC, 50–60 Hz;
Consumption: 25 watts maximum
Size — 1.7"H x 17.3"W x 8.7"D (4.4 x 44 x 22 cm)
Weight — LGB516A: 6.4 lb. (2.9 kg);
LGB524A: 6.6 lb. (3 kg)
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Chapter 2: Overview
2. Overview
2.1 Introduction
The Switch provides (16) or (24) 10-/100-/1000-Mbps RJ-45 ports and can
support (4) Combo SFP ports for uplink. The switch is easy to install and provides
high performance in an environment where traffic on the network and the
number of users increases continuously. The switch uses the latest Gigabit chipsets
providing it with the best performance and features available; this enables the
switch to support full-duplex Gigabit speed on every port without any issues.
The switch also provides MDI/MDI-X automatic crossover detection on every port,
so it connects to another switch without crossover cable.
The 19" rackmount size makes the switch a perfect fit for medium to large work-
groups. It fits easily into your existing 19" racks and only uses 1 rack unit (RU) of
space. Because the switch is unmanaged, it’s easy to install. Just install the switch
in your rack or cabinet and you are ready to connect up to 16 more devices to
your network.
2.2 Features
• Complies with the IEEE 802.3 Ethernet, IEEE 802.3u Fast Ethernet and IEEE
802.3ab Gigabit Ethernet standards.
• Provides (16) or (24) 10-/100-/1000-Mbps Gigabit switching ports
and (4) Combo SFPs.
• 19" rackmount size.
• Supports non-blocking and non-head-of-line blocking full-wire-speed
forwarding.
• Supports store-and-forward operation.
• Features an embedded 500 KB packet buffer.
• Supports 9.6 KB JUMBO packets
• Provides 8K MAC address entry.
• Supports broadcast storm filtering.
• All ports provide autonegotiation and Auto-MDI/ MDI-X functions.
• Supports flow control: backpressure for half-duplex and IEEE 802.3x for
full-duplex mode.
• Smart plug-and-play.
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Chapter 2: Overview
2.3 What’s Included
Before you start to install this Switch, verify that your package contains the
following items:
• (1) Gigabit Unmanaged Switch with SFP Uplinks, 16-Port (LGB516A) or 24-Port
(LGB524A)
• (1) rackmount kit for rack installation
• (1) AC power cord
• This user’s manual
NOTE: If any of these items is found missing or damaged, please contact your
Black Box Technical Support at 724-746-5500 or [email protected] for
replacement.
2.4 Hardware Description
2.4.1 Gigabit Unmanaged Switch with SFP Uplinks, 16-Port
Figures 2-1 and 2-2 illustrate the front and back panels of the Gigabit Unmanaged
Switch, 16-Port. Table 2-1 describes its components.
3
6
5
1
2 4
6
6
5
Figure 2-1. LGB516A front panel.
7
8
Figure 2-2. Power switch and connector on the LGB516A back panel.
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Chapter 2: Overview
Table 2-1. LGB516A components.
Number in Figures 2-1
and 2-2
Component
Status
Description
1
(1) Power LED
On
Lights when power to unit is on.
On
Fiber port(s) are active.
(4) FIber LEDs (F1–
F4)
2
3
Flashing
On
Switch is passing data.
Link is running at 1000 Mbps.
Link is running at 10/100 Mbps.
Light when SFP is connected.
(16) 1000M LEDs
Off
On
4
(16) Link/Act LEDs
(12) RJ-45 ports
Flashing
—
Switch is passing data.
Links to RJ-45 ports.
5
6
(4) RJ-45/SFP
combo ports
—
Link to either RJ-45 or SFP devices.
ON
OFF
—
Power to switch is on.
Power to switch is off.
90–260 VAC, 50–60 Hz
7
8
ON/OFF switch
AC input connector
2.4.2 Gigabit Unmanaged Switch with SFP Uplinks, 24-Port
Figures 2-3 and 2-4 illustrate the front and back panels of the Gigabit Unmanaged
Switch, 24-Port. Table 2-2 describes its components.
3
6
5
1
2 4
6
6
5
Figure 2-3. LGB524A front panel.
7
8
Figure 2-4. Power switch and connector on the LGB524A back panel.
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Chapter 2: Overview
Table 2-2. LGB524A components.
Number in Figures
2-3 and 2-4
Component
Status
Description
Lights when power to unit is on.
1
(1) Power LED
On
On
Fiber port(s) are active.
(4) FIber LEDs (F1–
F4)
2
Flashing
On
Switch is passing data.
Link is running at 1000 Mbps.
Link is running at 10/100 Mbps.
Light when SFP is connected.
3
4
(24) 1000M LEDs
Off
On
(24) Link/Act LEDs
(20) RJ-45 ports
Flashing
—
Switch is passing data.
Links to RJ-45 ports.
5
6
(4) RJ-45/SFP
combo ports
—
Link to either RJ-45 or SFP devices.
Power to switch is on.
ON
7
8
ON/OFF switch
OFF
—
Power to switch is off.
AC input connector
90–260 VAC, 50–60 Hz.
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Chapter 3: Connections
3. Connections
3.1 Switch/Hub Connected to 24-Port Gigabit Unmanaged Switch with SFP
Uplinks (LGB524A)
The switch provides automatic crossover detection for any port. This enables you
to connect to another switch without using a crossover cable.
24-Port Gigabit
Unmanaged Switch
with SFP Uplinks
Uplink
(LGB524A)
Ethernet
switch
Ethernet
switch
Ethernet
switch
Mac®
PC
PC
PC
PC
Server
Workstation
PC
Server
Figure 3-1. Switch connected to LGB524A.
3.2 PC/Other Devices Connected to 24-Port Gigabit Unmanaged Switch
with SFP Uplinks (LGB524A)
The switch provides automatic crossover detection for any port. This enables you
to connect to PCs, servers, and other network devices without using either a
straight-through or crossover cable.
24-Port Gigabit
Unmanaged Switch
with SFP Uplinks
(LGB524A)
Mac
PC
Server
Workstation
Figure 3-2. PC/other devices connected to LGB524A.
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Chapter 4: Troubleshooting
4. Troubleshooting
4.1 Contacting Black Box
If you determine that your Gigabit Unmanaged Switch with SFP Uplinks is
malfunctioning, do not attempt to alter or repair the unit. It contains no
user-serviceable parts. Contact Black Box Technical Support at 724-746-5500
Before you do, make a record of the history of the problem. We will be able to
provide more efficient and accurate assistance if you have a complete description,
including:
• the nature and duration of the problem.
• when the problem occurs.
• the components involved in the problem.
• any particular application that, when used, appears to create the problem or
make it worse.
4.2 Shipping and Packaging
If you need to transport or ship your Gigabit Unmanaged Switch with SFP Uplinks:
• Package it carefully. We recommend that you use the original container.
• If you are returning the unit, make sure you include everything you received
with it. Before you ship for return or repair, contact Black Box to get a Return
Authorization (RA) number.
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NOTES
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NOTES
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Black Box Tech Support: FREE! Live. 24/7.
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way it should be.
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724-746-5500 or blackbox.com.
About Black Box
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