Black Box LB304A User manual

Provides one channel for Ethernet over existing
voice grade copper wire.
Hardened Ethernet Extender Quick Start Guide
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BL A C K B O X®
Provides one channel for Ethernet over existing
voice-grade twisted-pair copper wire.
Hardened Ethernet Extender Quick Start Guide
LB304A
LBPS301A
LBPS304A

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Hardened Ethernet Extender Quick Start Guide
724-746-5500 | blackbox.com
Quick Start Guide
This quick start guide describes how to install and use the Hardened Ethernet
Extender. This is the Hardened Ethernet Extender of choice for harsh
environments with space constraints.
QS1. Physical Description
The Port Status LEDs and Power Inputs
Figure QS-1. LB304A, LBPS301A, LBPS304A.
Table QS-1. Power input assignment.
Power Signal Voltage Connector
Power 1 48 VDC DC jack
Power 2
+24–48 VDC
Terminal block
-Power Ground
Power 3 +24–48 VDC
-Power Ground
Earth Ground

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Hardened Ethernet Extender Quick Start Guide
Table QS-2. DIP switch assignment.
DIP Switch Description
Loc The device operates in local mode.
Rmt The device operates in remote mode.
Table QS-3. LED indicators
Power LEDs State Indication
Power 1
Power 2
Power 3
Steady Power on
Off Power off
Ethernet LEDs
PoE
Steady Powered device (PD) is connected
Off Powered device (PD) is disconnected.
Link/ACT (Green)
Steady Valid network connection established.
Flashing Transmitting or receiving data. ACT stands for
AC TI VIT Y.
Off Valid network connection not established, or not
transmitting/receiving data.
Speed (Yellow)
Steady Valid port connection at 100 Mbps.
Off Valid port connection at 10 Mbps.
Ethernet Extender LEDs
Remote Steady The device operates in remote mode.
Local Steady The device operates in local mode.
Error Steady Error occurred.
Link Steady A valid connection established.

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Hardened Ethernet Extender Quick Start Guide
Table QS-4. Speed/distance.
Speed Distance
1 Mbps 6232 ft. (1900 m)
3 Mbps 5904 ft. (1800 m)
5 Mbps 5249 ft. (1600 m)
10 Mbps 4593 ft. (1400 m)
15 Mbps 3936 ft. (1200 m)
20 Mbps 3280 ft. (1000 m)
25 Mbps 2624 ft. (800 m)
30 Mbps 2296 ft. (700 m)
40 Mbps 1968 ft. (600 m)
50 Mbps 984 ft. (300 m)
• PoE LED is only on the Hardened IEEE 802.3at PoE PSE Ethernet Extender
versions (LBPS301A and LBPS304A).
• DC Terminal Block Power Inputs: There are two pairs of power inputs that you
can use to power up this Ethernet Extender. Redundant power supplies function
is supported. You only need to have one power input connected to run the
Ethernet Extender.
• DC jack: Power Input: 48 VDC.
10/100BASE-TX and Ethernet Extender Connectors
10/100BASE-TX connection
Figure QS-2 shows the pinouts of 10/100BASE-TX RJ-45 port. Table QS-5
describes the functions.
Figure QS-2. RJ-45 port pinout.

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Hardened Ethernet Extender Quick Start Guide
Table QS-5. 10/100BASE-TX RJ-45 port pin assignments.
Pin Regular Ports Uplink Ports
1Output Transmit Data + Input Receive Data +
2Output Transmit Data - Input Receive Data -
3Input Receive Data + Output Transmit Data +
4Positive (VCC+) Positive (VCC+)
5Positive (VCC+) Positive (VCC+)
6Input Receive Data - Output Transmit Data -
7N e g a t i v e ( V CC- ) N e g a t i v e ( V CC- )
8N e g a t i v e ( V CC- ) N e g a t i v e ( V CC- )
• Pin 4, 5 Positive (VCC+) and Pin 7, 8 Negative (VCC-) are only available for
Hardened IEEE 802.3at PoE PSE Ethernet Extender version.
Ethernet Extender Connection
The RJ-11 and terminal block port pinouts
Pin 3: Tip, Pin 4: Ring.
Figure QS-3. Ethernet connector pinout.
Use a twisted-pair telephone line to connect two RJ-11 or terminal block ports
between two Hardened Ethernet Extenders.
WARNING: Inappropriate operation might damage the terminal block.
QS.2 Functional Description
• Meets NEMA TS1/TS2 environmental requirements: temperature, shock, and
vibration for traffic control equipment.
• Meets EN61000-6-2 & EN61000-6-4 EMC Generic standard Immunity for
industrial environment.
• Operates transparent to higher layer protocols such as TCP/IP.

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Hardened Ethernet Extender Quick Start Guide
• Ethernet port: Supports IEEE 802.3/802.3u/802.3x. Autonegotiation:
10/100 Mbps, full-/half-duplex; Auto MDI/MDI-X.
• Complies with IEEE 802.3at standard for high power input required device and
also compatible with IEEE 802.3af powered devices (Only available for Hardened
IEEE 802.3at PoE PSE Ethernet Extender version.)
• Ethernet Extender port (RJ-11 and terminal block): Symmetrical on the VDSL,
full-duplex 50-Mbps communications link over existing twisted-pair copper
telephone line.
• One DIP switch for configuring Local (Loc) and Remote (Rmt).
• Ten speeds with speed indicator LEDs on front panel of unit, up to 50 Mbps @
about 984 feet (300 meters), down to 1 Mbps @ about 6232 feet (1900
meters).
• 4-port 10/100BASE-TX (2-port IEEE 802.3at PoE PSE) Ethernet Extender: 2.88 A
@ 24 VDC, 1.44 A @ 48 VDC. Power consumption: 69.12 W Max.
• 2-port IEEE 802.3at PoE PSE Ethernet Extender: 2.88 A @ 24 VDC, 1.44 A
@ 48 VDC. Power consumption: 69.12 W Max.
• 1-port IEEE 802.3at PoE PSE Ethernet Extender: 1.6 A @ 24 VDC, 0.8 A
@ 48 VDC. Power consumption: 38.4 W Max.
• 4-port 10/100BASE-TX Ethernet Extender: 0.36 A @ 24 VDC, 0.18A @ 48 VDC.
Power consumption: 8.64 W Max.
• Power Supply: Redundant 24-48 VDC terminal block power inputs and 48 VDC.
DC jack with 100–240 VAC external power supply.
• Field Wiring Terminal Markings: Use copper conductors only, 140/167° F (60/75°
C), wire range 12-24 AWG, torque value 7 lb-in.
• Operating temperature range @ -40 to +167° F (-40 to +75° C). Tested for
functional operation @ -40 to +185° F (-40 to +85° C). UL®508 Industrial
Control Equipment certified. Maximum surrounding air temperature @ 167° F
(75° C).
• For use in Pollution Degree 2 Environment.
• Supports DIN rail, panel, and rackmounting installation.

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Hardened Ethernet Extender Quick Start Guide
QS.3. Assembly, Startup, and Dismantling
• Assembly: Place the Hardened Ethernet Extender on the DIN rail from above
using the slot. Push the front of the Hardened Ethernet Extender toward the
mounting surface until it audibly snaps into place.
• Startup: Connect the supply voltage to start up the Hardened Ethernet Extender
via the terminal block (or DC jack).
• Dismantling: Pull out the lower edge and then remove the Hardened Ethernet
Extender from the DIN rail.

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LB304A Quick Start Guide, version 1
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