Black Box LB9019A-R2 User Manual

October, 2003

Express

Ethernet Switch

LB9019A-R2

CUSTOMER
SUPPORT
INFORMATION

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Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
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Express Ethernet Switch LB9019A-R2

FEDERAL COMMUNICATIONS COMMISSION AND

CANADIAN DEPARTMENT OF COMMUNICATIONS

This equipment generates, uses and can radiate radio frequency energy and if not installed and used properly, that is, in
strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been
tested and found to comply with the limits for a Class A computing device in accordance with the specifications in
Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when
the equipment is operated in a commercial environment. Operation of this equipment in a residential area is likely to
cause interference, in which case the user at his own expense will be required to take whatever measures may be
necessary to correct the interference.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.

This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the
Radio Interference Regulation of the Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de la classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par le ministère des
Communications du Canada.

1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea
operado.

RADIO FREQUENCY INTERFERENCE STATEMENT

Normas Oficiales Mexicanas (NOM)

INSTRUCCIONES DE SEGURIDAD

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 a 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.

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Express Ethernet Switch LB9019A-R2

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.

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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Express Ethernet Switch LB9019A-R2

Table of Contents

About This Manual....................................................................................................................................... 5

Product Overview......................................................................................................................................... 5

Front View.................................................................................................................................................. 5

Package Contents........................................................................................................................................ 5

Front Panel Display .................................................................................................................................... 6

Physical Ports ............................................................................................................................................. 7

QoS (Quality of Service) Settings .............................................................................................................. 8

Installation .................................................................................................................................................. 10

Selecting a Site for the Equipment ........................................................................................................... 10

Connecting to Power ................................................................................................................................ 11

Connecting to Your Network ................................................................................................................... 12

Network Segmentation ......................................................................................................................... 12

Cable Specifications Table......................................................................................................................... 12

Technical Specifications............................................................................................................................. 13

Physical Specifications ............................................................................................................................... 13

Trouble-shooting Guide ............................................................................................................................. 14

No Power to the Switch............................................................................................................................ 14

No Connectivity to the Data Terminal Equipment................................................................................... 14

No Connectivity to Certain Nodes on the Network.................................................................................. 15

Transmission Problems ............................................................................................................................ 15

Glossary....................................................................................................................................................... 16

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Express Ethernet Switch LB9019A-R2

About This Manual

This manual describes how to install and use LB9019A-R2: 16 Ports QoS Switch. The switch introduced
here auto-negotiates the presence of 10/100Mbps and full/half-duplex mode.

To get the most out of this manual, you should have an understanding of networking concepts such as
bridging, IEEE 802.3 Ethernet, 100BASE-TX/FX Fast Ethernet, and local area networks (LANs).

In this manual, you will find:

• Introduction on the Switch

• Product features

• Illustrative LEDs functions

• Installation instructions

• Specifications

Product Overview

Front View

Figure 1: LB9019A-R2: 16 Ports QoS Switch

Package Contents

When you unpack the product package, you shall find these items listed below.

LB9019A-R2: The 16 Ports Qos Switch

3

3

One AC power cord

User’s Manual

3

Please inspect the contents, and report any apparent damage or missing items immediately to your
authorized reseller.

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Express Ethernet Switch LB9019A-R2

Product Features

♦ PLUG-AND-PLAY
♦ P

ROVIDES 16 × 10/100MBPS PORTS USING RJ-45 CONNECTORS

♦ SUPPORTS
♦ S

UPPORTS 16K MAC ADDRESSES FOR THE 16-PORT SWITCH

♦ A

UTO-NEGOTIATION FOR SPEED AND DUPLEX MODE ON TX PORTS

♦ T

RUE NON-BLOCKING ARCHITECTURE

♦ S

TORE-AND-FORWARD MECHANISM

♦ F

ULL WIRE SPEED FORWARDING RATE

♦ B

ACK-PRESSURE AND IEEE 802.3X COMPLIANT FLOW CONTROL

♦ T

HREE QOS (QUALITY OF SERVICE) LEVELS CHECKED VIA IP HEADER AND 802.1Q VLAN TAG

AND

/OR SELECTED PER PORT BASIS

♦ B

ROADCAST THROTTLING

♦ F

RONT PANEL PORT STATUS LEDS

Front Panel Display

An array of LED indicators on the front panel provides you with instant feedback on each port status, and,
helps you monitor and troubleshoot the switch.

Z Qos Status o Port Status

16- PORT RJ-45 CONNECTORS WITH AUTO MDIX

n Power

Figure 2: LB9019A-R2: Front Panel LEDs

n Power

This LED comes on when the switch is properly connected to power and turned on.

o Port Status

The RJ-45 ports numbered from 1 to 16 in one section on the 16 Ports QoS Switch.

The LEDs are located at the left side of 16 RJ-45 ports, displaying status for each respective port.
Please refer to the table below for more information.

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Express Ethernet SwitchLB9019A-R2

p QoS (Quality of Service) Status

The LEDs displaying status for Layer 3 IP Header priority, Layer 2 VLAN Tagging priority, and
Port 1~6 Port based priority.

L Before you use this table for troubleshooting, make sure the switch is properly connected to power

and turned on.

Physical Ports

The 16 Ports QoS Switch has sixteen 10/100Mbps ports using RJ-45 connectors with AUTO MDIX
function.

Understanding Front Panel Design

Power LED

Port LED

QoS Status
LED

LNK/ACT

FDX/COL

Port 1~6

On Power feeding in
Off

On A valid network connection

Flashing Transmitting or receiving data

Off No connection
On Full duplex mode

Flashing Collision occurred

Off Half duplex mode

On

Off Layer 3 IP Header priority off
On Layer 2 VLAN Tagging priority on VLAN
Off Layer 2 VLAN Tagging priority off
On

Off Port 1~6 Port based priority off

Power switched off
Improper connection

LNK stands for LINK

ACT stands for ACTIVITY

FDX stands for Full Duplex

COL stands for Collision

Layer 3 IP Header priority on IP

Port 1~6 Port based priority on

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Express Ethernet SwitchLB9019A-R2

QoS (Quality of Service) Settings

1 2 3 4 5 6 7 8

O

Figure 3: Default Setting of the QoS (Quality of Service) DIP Switch on the Rear Panel

There are three Priority Queues on 1616Q, Normal (N), High (H), and Very High (VH)
Queues.

On the rear panel of the switch, there are eight pins on the DIP Switch for QoS (Quality
of Service) Settings.

z Toggle ON Pin 1 to enable Port based QoS on Port 1.
z Toggle ON Pin 2 to enable Port based QoS on Port 2.
z Toggle ON Pin 3 to enable Port based QoS on Port 3.
z Toggle ON Pin 4 to enable Port based QoS on Port 4.
z Toggle ON Pin 5 to enable Port based QoS on Port 5.
z Toggle ON Pin 6 to enable Port based QoS on Port 6.
z Toggle ON Pin 7 to enable layer 2 VLAN Tagging QoS.
z Toggle ON Pin 8 to enable layer 3 IP Header QoS.
z There is no DIP Switch pin for Port based QoS on Port 7 through Port 16.

If none of the DIP Switch pins are toggled ON, all packets are sent to the Normal Queue.

If PIN 1 or 2 is ON, Port 1 or 2 is set to VH priority. All packets entering these two ports
are sent to Very High Queue.

If PIN 3, 4, 5, or, 6 is ON, the corresponding port is set to H priority. All packets entering
these ports are sent to High Queue.

There is no pin for Port 7 through Port 16. These ports have default port-based priority
set to Normal. Packets entering these ports are sent to Normal Queue.

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Express Ethernet SwitchLB9019A-R2

If PIN 7 is ON, the 3-bit CoS of tagged VLAN will decide which queue the packet to
join. Packets with CoS (Class-of-Service) bits of 000(or 0) are sent to Normal Queue,
001(or 1) to High Queue, and 010 or higher (2 or higher) to Very High Queue.

If PIN 8 is ON, the ToS (Type-of-Service) byte in IP header will decide which queue the
packet to join. Packets with ToS value 0-63 are sent to Normal Queue, 64-127 to High
Queue, and 128-255 to Very High Queue.

If there is more than one applicable priority setting on a packet, the setting with the
highest priority will take effect.

The bandwidth distribution can be observed in the table below:

Priority Queues

If Empty

Normal (Low) Priority High Priority Very High Priority

Transmission Bandwidth Allocation

Normal X 33% 67%

High 11% X 89%

Very High 20% 80% X

None 8% 30% 62%

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Express Ethernet SwitchLB9019A-R2

Installation

Selecting a Site for the Equipment

As with any electric device, you should place the equipment where it will not be subjected to extreme
temperatures, humidity, or electromagnetic interference. Specifically, the site you select should meet the
following requirements:

- The ambient temperature should be between 32 and 104 degrees Fahrenheit (0 to 40 degrees Celsius).

- The relative humidity should be less than 90 percent, non-condensing.

- Surrounding electrical devices should not exceed the electromagnetic field (RFC) standards for IEC

801-3, Level 2 (3V/M) field strength.

- Make sure that the equipment receives adequate ventilation. Do not block the ventilation holes on

each side of the switch or the fan exhaust port on the side or rear of the equipment.

- The power outlet should be within 1.8 meters of the switch.

The switch can be placed on any flat surface with adequate space and ventilation. If you want to place it
onto a shelf, make sure the shelf can withstand the weight of the switch.

Step 1: Simply put the switch on the desired place.

Step 2: Ensure the switch receives good ventilation.

Step 3: Proceed to the “Connecting to Power” section.

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Express Ethernet SwitchLB9019A-R2

Connecting to Power

Locate the supplied AC power cord.

Step 1: Connect the AC power cord to the receptacle at the back of the switch.

Step 2: Attach the plug into a standard AC outlet with a voltage range from 100~260Vac.

Step 3: Locate the power ON/OFF switch beside the receptacle at the back.

Turn on the switch by flipping the ON/OFF switch to ON position.
The power LED on the front panel will come on then.

Figure 4: LB9019A-R2: Rear view of the switch

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Express Ethernet Switch LB9019A-R2

Connecting to Your Network

Cabling

Step 1: First, ensure the power of the switch and end devices are turned off.

L It may cause electric shock or any possible harm to you if the power is not switched off.

Step 2: Prepare cable with corresponding connectors for each type of port in use.

Consult the table below for cabling requirements based on connectors and speed considerations.

Step 3: Connect one end of the cable to the switch and the other end to a desired device.

Step 4: Once the connections between two end devices are made successfully, turn on the power and the

switch is operational.

Network Segmentation

Cable Specifications Table

Ethernet
Standards

10BASE2 BNC 10/20 Mbps Coaxial 185 m

10BASE-T RJ-45 10/20 Mbps

100BASE-TX RJ-45 100/200 Mbps Cat. 5 UTP/STP 100 m

100BASE-FX
Multi-mode
100BASE-FX
Single-mode
100BASE-FX
Single-mode
100BASE-FX
Single-mode

Connector

ST, SC, MT-RJ,
VF-45

SC 100/200 Mbps

SC 100/200 Mbps

SC 100/200 Mbps

Port Speed
Half/Full Duplex

100/200 Mbps

Cable

Cat. 3, 4 or 5
UTP/STP

62.5/125 µm
multi-mode fiber
10/125 µm
single-mode fiber
10/125 µm
single-mode fiber
10/125 µm
single-mode fiber

Max.
Distance

100 m

2 km

15 km

40 km

75 km

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Technical Specifications

LB9019A-R2 16 Ports QoS Switch

Express Ethernet Switch LB9019A-R2

Applicable Standards

Fixed Ports

Speed

Switching Method

Performance

Chassis LED
Indicators

QoS LED Indicators

IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX
Back Pressure and Flow Control IEEE 802.3x Compliant,
IEEE 802.1Q VLAN Tagging

Sixteen ports for the 16 Ports QoS Switch

100BASE-TX: 200Mbps for full-duplex; 100Mbps for half-duplex

10BASE-T: 20Mbps for full-duplex; 10Mbps for half-duplex

Store-and-Forward

148,800pps forwarding rate per port for 100Mbps
14,880pps forwarding rate per port for 10Mbps

Power

For fixed ports: LNK/ACT; FDX/COL (2 LEDs)

For IP QoS, IP (1 LED)

For VLAN QoS, VLAN (1 LED)

For Port based QoS, 1~6 (1 LED for each Port, Port 1~6)

Physical Specifications

LB9019A-R2 16 Ports QoS Switch

Dimensions

Weight Approx. 1.6kg (3.5lb.)

Power Input 100 ~ 260 Vac, 47~63 Hz

Power Consumption 15W Max.

Operating Temperature 0° ~ 40°C (32° ~ 104°F)

Storage Temperature -25° ~ 70°C (-13° ~ 158°F)
Humidity 10 ~ 90%, non-condensing

Emissions FCC part 15 Class A, CISPR Class A, VCCI Class A, CE Mark

Safety UL

254 × 135 × 35 mm (10 × 5.3 × 1.4 inch)
Compact Size

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Express Ethernet Switch LB9019A-R2

Trouble-shooting Guide

This trouble-shooting guide describes problems that could occur with the Express Ethernet Switch. The
guide states possible reasons for the symptoms, and proper steps to take to solve the problems.

No Power to the Switch
Symptom: Power cord is connected to the switch, but all LEDs, including the Power LED, are off.

Possible Problem

Solution

Loose power connection or
faulty power supply

1. Check both ends of the power cord to make certain that they are securely

connected to the power receptacle on the switch and to the power outlet.

2. Verify that the power outlet has power.

No Connectivity to the Data Terminal Equipment.
Symptom: An Ethernet switch cannot communicate to the directly connected computers or network

segments.

Possible Problem

Solution

1. Check cables for a secure connection.

2. Verify that the correct type of cable is in use.

• For connection to a PC or a network interface card (NIC), use a straight-

through cable.

• For uplink to another switch or hub, use a cross-wire cable, or use a regular

straight-through cable connected to the uplink port with the uplink button

Incorrect or faulty cabling

activated.

• Refer to Table 1 for cable specifications.

1. Verify proper cable preparation.

2. Use a time domain reflectometer (TDR) or other cable-checking device to

Dysfunctional NIC on a
PC or workstation

Packet Overflow or
Hardware problem

14

verify that the cable has no opens, shorts, or other problems.

3. Swap the cable with another of the same kind to see if the cable is bad.

• Replace or fix the faulty cable as necessary.

Run the diagnostic supplied by the vendor on the NIC to determine if it is

functioning properly. If it is not, replace it.

Reset the switch by pressing the reset button or turn the switch off, then on

again.

Express Ethernet Switch LB9019A-R2

No Connectivity to Certain Nodes on the Network

Symptom: Data terminal equipment (DTE) connected to the switch can not send or receive information

from certain segments on the same network or across to another LAN or WAN.

Possible Problem Solution

Hardware problem Check for a damaged RJ-45 jack, or fiber SC or ST type connector.

Transmission Problems

Symptom: Connections across a LAN switch are slow or unreliable.

Possible Problem Solution

Express Ethernet Switches are all equipped with auto-negotiation to

communicate with other DTEs on the network for the best available

Incorrect full- or half­duplex settings

Exceeded cabling

distance or misused

cable

Bad adapter in attached

device

performance.

1. Verify if the connected NIC is equipped with auto-negotiation (this is not the

same as auto-sensing).

2. Change the DIP switch setting if available.

1. Ensure that the proper cable is in use and that the recommended distance is

not exceeded. For information, refer to Table 9.

2. Check the cable distance using a cable tester or TDR. Verify that the cable

lengths attached to the switch meet Ethernet/IEEE 802.3 specifications.

3. If the distance is out of specification, reduce the length of the cable or add a

repeater, ensuring no more than four repeaters are attached.

Check the switch port statistics. If excessive errors are found, run the adapter card

diagnostic utility to determine the problem.

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Express Ethernet Switch LB9019A-R2

Trademarks

Any trademarks are acknowledged to be the property of the trademark owners.

Glossary

10BASE-T

100BASE-TX

Networking standard for twisted-pair cabling capable of carrying data at 10 Mbps.
Networking standard for two pairs of high-quality twisted-pair wires carrying data at 100
Mbps.

100BASE-FX

auto-negotiation

Networking standard for fiber-optic cabling capable of carrying data at 100 Mbps.
Two-part process by which a network device automatically senses the speed and duplex
capability of another device.

Category 5

collision

Ethernet

Fast Ethernet

fiber-optic cable

full-duplex

Networking standard certifying that a copper wire cable can carry data at up to 100 Mbps.
Concurrent Ethernet transmissions from two or more devices on the same segment.
Networking standard for transmitting data at 10 Mbps.
Networking standard for transmitting data at 100 Mbps.
Cable made of thin glass threads that carry data in the form of light pulses.
A communications technique that allows bi-directional, simultaneous transmission between
two devices on a single segment.

half-duplex

A communications technique in which one device on a segment transmits while the other
receives, then the process is reversed.

IEEE 802

Set of Institute of Electrical and Electronic Engineers standards for defining methods of
access and control on LANs.

LAN

Local area network. A network where computers are connected in close proximity, such as
in the same building or office park. A system of LANs connected at a distance is called a
wide-area network (WAN).

MAC address

Media access control address. A hardware address that uniquely identifies each node of a
network.

Mbps

segment

Millions of bits per second.
Section of a network bounded by bridges, routers, hubs, or switches. Dividing an Ethernet
into multiple segments is a common way to increase bandwidth on a LAN.

store-and­forward

Switching feature where the port receives the entire incoming frame and stores it in the
buffers while checking for runts and error frames before forwarding it to the destination
port.

switch

UTP

Device that filters and forwards packets between LAN segments.
Unshielded twisted pair; cabling with wires that are twisted around each other. The
individual wires are not insulated.

wire speed

The ability to handle the fastest rate of traffic that a generator can deliver without dropping
packets. On a 100 Mbps connection, wire-speed traffic is 148,809 packets per second using
64-byte frames or 8,127 packets per second using 1,518-byte frames.

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