l-com LC-MCGMM-ST User Manual Download Page 2

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Packing List

The box should contain the following items:
•  (1) LC-MCxx-XX 10/100/1000TX to Duplex SC or ST (See Order Chart below for details)
•  (1) AC-DC Power Adapter (Output: 5VDC, 2 Amps max.) For standalone use
• This User’s Manual
Please notify us immediately if any items are missing or damaged.

 

Overview

The LC-MCGxx-XX series of media converters are designed to meet the various needs for extending network segments and is able to extend a 
copper based network via fiber cable to a maximum distance up to 20km. (Depending on which unit you purchase)
Our LC-MCGxx-XX series of media converters are fully compliant with IEEE802.3, IEEE802.3U, IEEE802.3ab, 10/100/1000Base-Tx, and 
IEEE802.3z 1000Base-SX/LX, standards. They can be used as standalone converters or installed into one of our LC-MCC14AA 14 slot Media 
Converter chassis. Operation status can be locally monitored through a set of diagnostic LEDs located on the front panel. 

(See LED indicators Chart for Details)

Features

• 10/100/1000Base-Tx to 1000Base-SX/LX Converter
•  Complies to IEEE802.3, IEEE802.3U, IEEE802.3ab & IEEE802.3z 
•  One 10/100/1000 Mbps RJ45 Ethernet port (maximum segment length 100 meters)
•  One Duplex ST or SC port (depending on unit purchased, see order chart below  

for details)

• Auto MDI/MDI-X support on RJ45 port
•  Flow control: IEEE802.3x flow control for duplex mode, backpressure flow control  

for half duplex mode.

• Status LEDs for easy monitoring of device’s status
•  Extends distance up to 2km (6,561ft or 1.2 miles) when using either of our  

LC-MCGMM-XX  multimode fiber units or up to 20km (65,616ft or 12.4 miles) when  
using either of our LC-MCGSM-XX single mode fiber units.  
(See Order Chart below for details)

Ordering Chart 

LED Indicators

LC-MCGMM-ST

10/100/1000TX RJ45 to 1000SX Multimode Duplex 
ST (2Km)

LC-MCGMM-SC

10/100/1000TX RJ45 to 1000SX Multimode Duplex 
SC (2Km)

LC-MCGSM-ST

10/100/1000TX RJ45 to 1000LX Single mode Duplex 
ST (20Km)

LC-MCGSM-SC

10/100/1000TX RJ45 to 1000LX Single mode Duplex 
SC (2Km)

ITEM

SPECIFICATION

Ethernet
Standards

IEEE802.3: 10Base-T
IEEE802.3u: 100Base-TX
IEEE802.3ab: 1000Base-T
IEEE802.3z: 1000Base-SX/LX  
(Depending on Unit purchased)
IEEE802.3x: Flow control and back pressure

Ethernet Port

Cat-5e (or better) (10/100/1000Mbps) unshielded twisted 
pair cable (100m Max)

Fiber Port

Duplex ST or Duplex SC

LEDs

PWR, TP/ACT, 100M, 1000M, FX/ACT, FDX

Power

External 5VDC 2A

Dimensions

3.7L x 2.79W x 1H (95mm x 71mm x 26mm)

Safety

UL certified

Temperature

Operating: 32°~113°F (0°~45°C)
Storage: 14°~158°F (-10°~70°C)

Humidity

Operating: 10~90% (non-condensing)
Storage: 10~90% (non-condensing)

EMC

FCC Part 15 (Class B)
CE EMC (Class A)

TX

RX

RJ45

1000M

FX/ACT

FDX

100M
TP/ACT
PWR

1000M

FX/ACT

FDX

100M
TP/ACT
PWR

TX

RX

RJ45

Duplex SC port version

Duplex ST port version

LED

FUNCTION

STATUS DESCRIPTION

PWR

Power LED

ON

Power is ON

OFF

Power OFF

TP/ACT

UTP interface

link/action status

ON

10M Copper Cable Link or Better  

connected

Blink

Copper port is

transmitting data

OFF

No Cable connected or No 

Network Connection

100M

Copper

interface speed

ON

Copper port Network Connection 

speed at 100M

1000M

Copper

interface speed

ON

Copper port Network

Connection speed is at 1000M

FX/ACT

Fiber interface

link/action status

ON

Fiber Optic Network connection is 

present

Blink

Fiber Optic port is

transmitting data

OFF

Fiber is disconnected or no 

Network Connection

FDX

Copper interface

duplex mode

ON

Full duplex

OFF

Half duplex

Specifications

L-com Global Connectivity | 50 High St., West Mill, 3rd floor, Suite #30 | North Andover, MA 01845 | USA

© L-com, Inc. All Rights Reserved. L-com Global Connectivity and the L-com Logo are registered marks.

Toll Free Ordering and Technical Support: 1-800-343-1455     Visit our website at www.L-com.com

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