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7106506762     REV4.0.0

For more information, please visit our website: 

http://www.tp-link.com 

MC111CS/MC112CS

WDM Fast Ethernet Media Converter

Enlarge Your Ethernet Network

Package Contents: Converter, Power Adapter, User Guide, Purchasing Guide

TP_AUTO/TP_DIS: 

Set

 

the TP port speed to Auto-Negotiation/FORCE.

TP_100M/TP_10M: 

Set

 

the TP port’s speed.

LFP_ON/LFP_OFF: 

Enable or disable the LFP function.

TP_FDX/TP_HDX: 

Set

 

the duplex mode for the TP port as

                                     Full-Duplex/Half-Duplex.

You can set the speed and duplex via different switch combinations as 

shown below.

Note:

1. It is recommended to leave the switches on TP_AUTO, TP_100M, TP_FDX and LFP_On to 

accommodate most situations.

2. Please reboot the converter after configuring the switches.

Switch Combination

TP_AUTO, TP_100M, TP_FDX
TP_DIS, TP_100M, TP_FDX
(TP_DIS or TP_AUTO), TP_100M, TP_HDX
TP_DIS, TP_10M, TP_FDX
(TP_DIS or TP_AUTO), TP_10M, TP_HDX

Speed and Duplex 

TP: AUTO
TP: FORCE,100M, FULL-Duplex
TP: FORCE,100M, HALF-Duplex
TP: FORCE,10M, FULL-Duplex
TP: FORCE,10M, HALF-Duplex

DIP Switches

TP_AUTO

TP_FDX
LFP_OFF

TP_100M

TP_DIS

LFP_ON

TP_10M

TP_HDX

1

2

3 4

Scenario 1: Connect Devices with and without Optical Interfaces

LC-SC Fiber Cable

Ethernet device 

with optical interfaces

Twisted-Pair Cable

Ethernet device 

without optical interfaces

Media Converter

10BASE-T/100BASE-TX interface

100BASE-X(Fiber) interface

Note:
1. Please use one MC111CS and one MC112CS to work properly.
2. With the LFP (Link Fault Pass Through) function enabled, when one side of the link fails, the media converter 

will disconnect the transmit link of the other side, thus minimizing the loss caused by link failure.

Scenario 2: Connect Devices without Optical Interfaces

SC-SC Fiber Cable

Twisted-Pair Cable

Twisted-Pair Cable

Ethernet device 

without optical interfaces

Media Converter

Media Converter

Ethernet device 

without optical interfaces

10BASE-T/100BASE-TX interface

10BASE-T/100BASE-TX interface

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