Black Box LB308A User manual

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BL A C K B O X®
8-Port 10/100BASE-TX Hardened Ethernet Extender Switch
LB308A
Quick Start Guide
Use this managed hardened switch plus VDSL extender
in extreme environments.

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8-Port 10/100BASE-TX Ethernet Extender Switch Quick Start Guide
Quick Start Guide
This quick start guide describes how to install and use the 8-Port 10/100BASE-TX
Ethernet Extender Switch. Use it in harsh environments where space is limited.
QS.1 Physical Description
Figure QS-1 illustrates the port status LEDs and power inputs. Tables QS-1, QS-2,
and QS-3 describe these components.
3 2 1
4
5
6
13
13
13
13
9
8
11
7
10
12
Figure QS-1. Port status LEDs and power inputs.
Table QS-1. Port status LEDs.
Number Indicator State Indication
1Power 1 Steady Power on.
2Power 2
Off Power off.
3Power 3
10/100BASE-TX Port
4LINK/ACT
Steady A valid network connection is established.
Flashing Transmitting or receiving data. ACT stands for Activity.
5100
Steady Connection at 100-Mbps speed.
Off Connection at 10-Mbps speed.
Ethernet Extender Port
6LINK/ACT
Steady A valid network connection is established.
Flashing Transmitting or receiving data. ACT stands for Activity.

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8-Port 10/100BASE-TX Ethernet Extender Switch Quick Start Guide
Table QS-2. Power input assignment.
Number Input Polarity Voltage Connector
7Power 3 12 VDC DC jack
8Power 2
+12–48 VDC
Terminal block
-Power ground
9Power 1
+12–48 VDC
-Power ground
10 Ground
11 Relay output rating 1 A @ 24 VDC
Table QS-3. Ports on the switch.
Number Number of Ports Description Mode Selection
12 (8) RJ-45 10/100BASE-TX ports
10BASE-T full-duplex mode
10BASE-T half-duplex mode
100BASE-TX full-duplex mode
100BASE-TX half-duplex mode
Autonegotiating mode
13 (2) RJ-11 and terminal blocks Ethernet Extender ports Asymmetrical or symmetrical
DC Terminal Block Power Inputs:
You can use two power inputs to power on the Ethernet Extender Switch.
Redundant power supplies are supported.
QS.2. Functional Description
The Ethernet Extender Switch:
• Meets NEMA TS1/TS2 environmental requirements, including temperature,
shock, and vibration for traffic control equipment.
• Meets EN61000-6-2 and EN61000-6-4 EMC generic standard immunity for an
industrial environment.
• Manageable via SNMP, Web browser, Telnet, and RS-232 console port.
• RS-232 console supports command-line interface.

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8-Port 10/100BASE-TX Ethernet Extender Switch Quick Start Guide
• Ethernet Extender ports are asymmetrical or symmetrical on the VDSL, full-
duplex 59-Mbps downstream/31-Mbps upstream asymmetrical, or full-duplex
50-Mbps symmetrical communications link over an existing copper telephone
line.
• Operates transparently to higher-layer protocols such as TCP/IP.
• Two DIP switches configure local (LOC) and remote (REM).
• Supports 802.3/802.3u/802.3x autonegotiating, 10-/100-Mbps, full-/half-
duplex, Auto MDI-MDI-X Ethernet ports.
• Suports 8192 MAC addresses.
• Provides 2 MB of memory buffer.
• Relay output alarms indicate power and port link failure.
• Includes redundant 12–48-VDC power terminal block power inputs and 12 VDC
jack with a 100–240-VAC external power supply.
• Operating voltage and maximum current consumption are: 0.92 A @ 12-VDC,
0.46 A @ 24 VDC, 0.23 A @ 48 VDC. Maximum power consumption is 11 W.
• Operating temperature range is -40 to +167° F (-40 to +75° C).
• Supports DIN rail and panel-mounting installation.
QS.3. Console Configuration
1. Connect to the Ethernet Extender Switch console: Connect the DB9 straight
cable to the RS-232 serial port of the device and the RS-232 serial port
of the terminal or computer running the terminal emulation application.
For direct access to the administration console, connect a terminal or PC
equipped with a terminal emulation program (such as Hyperterminal®)
to the Ethernet Extender Switch console port.
2. Configure the settings for the terminal emulation program:
Baud rate: 115,200 bps
Data bits: 8
Parity: none
Stop bit: 1
Flow control: none

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8-Port 10/100BASE-TX Ethernet Extender Switch Quick Start Guide
3. Press the Enter key. The Command Line Interface (CLI) screen should appear as
shown in Figure QS-2.
4. Log on to Exec Mode (View Mode): At the “switch_a login:” prompt, type
“root” and press “Enter” to log on to Exec Mode (or View Mode). The
“switch_a>” prompt will show on the screen. See Figure QS-3.
Figure QS-2. switch_a> prompt.
5. Log on to Privileged Exec Mode (Enable Mode): At the “switch_a>” prompt,
type “enable” and press “Enter” to log on to Privileged Exec Mode (or Enable
Mode). The “switch_all” prompt will show on the screen.
6. Log on to Configure Mode (Configure Terminal Mode): At the “switch_all”
prompt, just type in “configure terminal” and press Enter to log on to
Configure Mode (or Configure Terminal Mode). The “switch_a(config)#”
prompt will appear on the screen as shown in Figure QS-3.

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8-Port 10/100BASE-TX Ethernet Extender Switch Quick Start Guide
Figure QS-3. switch_a(config)# prompt.
QS.4 Web Configuration
1. Log in to the Ethernet Switch: Specify the default IP address (192.168.1.10) of
the Ethernet Extender Switch in the Web browser. A login will appear as shown
in Figure QS-4.
Figure QS-4. Login screen.

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8-Port 10/100BASE-TX Ethernet Extender Switch Quick Start Guide
2. Enter the factory default login ID: root. Enter the factory default password (no
password), then click on the “Login” button to log in to the Ethernet Extender
Switch. You’ll then see the Welcome screen as shown in Figure QS-5.
Figure QS-5. Welcome screen.

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About Black Box
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© Copyright 2011. Black Box Corporation. All rights reserved. Black Box®and the Double Diamond logo
are registered trademarks of BB Technologies, Inc. Hyperterminal is a registered trademark of Hilgraeve, Inc. Any
third-party trademarks appearing in this manual are acknowledged to be the property of their respective owners.
BL A C K BOX®
LB308A QSG, version 1