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© Copyright 2015. Black Box Corporation. All r ights reser ved.
Black Box and the Double Diamond log o are registered trademarks of
BB Technologies, I nc. Any other trademarks mention ed in this manual
are acknowledged to be the property of the tra demark owner s.
Quick Start Guide
Conver t 10/10 0 /10 0 0 -Mbps tw is te d-pair
to 100/1000-Mbps fiber (SFP model) or
1000 Mbps fiber (fixed fiber models).
Compact Media Converter
LGC 5150A
LGC 5151A
LGC 5152A
Black Box Tech
Support: FREE! Live.
24 /7. Tec h supp ort
the way it should be.
Great tech support is just 60 seconds
away at 724-746-5500 or blackbox.com.
Order toll-free in the U.S.:
Call 877- 877-BBOX
(outside U.S. call 1-724-746-5500)
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, PA 15055-1018
Web site: www.blackbox.com
E-mail: info@blackbox.com
Customer
Support
Information
LGC5150A-2A Quick Start Guide
lgc5150a_qsg_ rev1
Troubleshooting
• Check Type of Cable Used
A CAT5 or higher Ethernet cable is required for the
RJ-45 port. Make sure pins are not pulled out of the
connector’s casing, which will cause damage to the
media converter’s copper port.
• Check Fiber Type and Speed
Make sure fiber types match on both sides of the fiber
connection. Confirm that each end of the installation
is capable of supporting the desired speed.
• Using LFPT
When troublshooting media converters, first disable
any diagnosic features, such as LFPT. Disable the LFPT
front DIP switch.
To download the full user manual:
1. Go to www.blackbox.com
2. E nter the part number (LGC5150A, LGC5151A, or
LGC5152A) in the search box:
3. Click on the “Resources” tab on the product page,
and select the document you wish to download.
If you have any trouble accessing the Black Box site
to download the manual, you can contact our
Technical Support at 724-746-5500 or
info@blackbox.com.
These SFPs work with the LGC5150A:
Product
Code
Description
LFP401 SFP, 155-Mbps Fiber 850-nm MM, LC, 2 km
LFP402 SFP, 155-Mbps Fiber 1310-nm MM, LC, 2 km
LFP403 SFP, 155-Mbps Fiber 1310-nm, SM, LC, 30 km
LF P 411 SFP, 1.25-Gbps Fiber 850 -nm MM, LC, 300 m
LFP412 SFP, 1.25-Gbps Fiber, 1310-nm MM, LC, 2 km
LFP413 SFP, 1.25-Gbps Fiber 1310-nm SM, LC, 10 km
LFP414 SFP, 1.25-Gbps Fiber 310-nm SM, LC, 30 km
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LGC5150A-2A Quick Start Guide LGC5150A-2A Quick Start GuideLGC5150A-2A Quick Start Guide
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Product Overview
Compact Media Converters enable you to connect
10/100/1000-Mbps devices together over fiber optic
cable. The fiber optic cable provides high-speed, clear
data communication between the devices at both
ends of the link.
10/ 100 /1000 -Mbp s
RJ- 45 copper ports
DIP switches
On the LGC5150A, fiber
cage houses SFP module
and supports 100 Mbps or
1000 Mbps speeds.
LGC5151A an d L GC 5152 A
have fixed MM or SM fiber
SC connectors
Internal power supply
LGC5150A pictured here
Getting Started:
Step 1: Connect Your Converter.
1. Using a CAT5 or better twisted-pair cable, connect
the RJ-45 ports on the converter to your
10/100 /10 0 0 M bp s d ev ices.
2. If you are using a duplex fiber optic cable, connect
the transmit port of one unit to the receive port on
the other. Make sure the fiber types match on both
sides of the link. If you are using a single-strand
single-mode fiber optic cable, attach the fiber optic
connector on one end of the link to the fiber optic
cable on the other end of the link.
Once the cables are connected, observe the LEDs on
the RJ-45 and fiber optic connectors of the media
converter.
The LNK/ACT LEDs on the RJ- 45 ports light green
when the link is valid. This LED blinks green when
activity is detected.
The LNK LEDs on the fiber ports light green when the
link is valid.
NOTE: Single-strand fiber requires one strand of fiber
but two mated products.
Step 2: Set the DIP switches.
The SFP version of the media converter (LGC5150A)
supports a LOW SPD DIP switch located on the front
of the unit.
Low-Speed (LOW SPD) DIP switch
(on the LGC5150A only).
Low SPD DIP
Switch Position
Description
Switch ON SFP forced to 100 Mbps
Switch OFF SFP not forced
All three media converter models (LGC5150A,
LGC5151A, and LGC5152A) include a Link Fault
Passthrough (LFPT) DIP switch, located on the front of
the unit.
LFPT is a troubleshooting feature that combines TX
and FX LinkLoss from both the local and remote media
converters.
To enable LFPT, set the DIP switch to ON. This feature
allows either end of the conversion to detect a link
fault occurring at the other end of the media
conversion chain.
The connector closest to the DIP switch on the media
converter supports LFPT.
LFPT DIP Switch Position Description
Switch Up LFPT ON
Switch Down LFPT OFF
Step 3: LED Operation
Top panel LEDs. LEDs on the RJ-45 connectors.
(pictured at left). (pictured at right).
LED Description
FLT Lights red when a fault has been
detected on the unit.
LNK Lights green with a valid link.
1000 Mbps Lights green when media converter is
running at 1000 Mbps
PWR Lights green when media converter is
powered on.
LNK /ACT Lights green with a valid link.
Blinks green when activity is detected.
FDX Lights amber when port is running
full duplex.
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