TP-Link MC112CS User manual

User Guide
MC100CM
MC110CS
Fast Ethernet Media Converter
MC111CS
MC112CS
WDM Fast Ethernet Media Converter
7106503773

COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice.
is a registered trademark of TP-LINK
TECHNOLOGIES CO., LTD. Other brands and product names are
trademarks or registered trademarks of their respective holders.
No part of the specifications may be reproduced in any form or by
any means or used to make any derivative such as translation,
transformation, or adaptation without permission from TP-LINK
TECHNOLOGIES CO., LTD. Copyright © 2012 TP-LINK TECHNOLOGIES
CO., LTD. All rights reserved.
http://www.tp-link.com

FCC STATEMENT
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including
interference that may cause undesired operation.
Any changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
CE Mark Warning
This is a class A product. In a domestic environment, this product
may cause radio interference, in which case the user may be
required to take adequate measures.

IC STATEMENT
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe Aest conforme à la norme
NMB-003 du Canada.

CONTENTS
Package contents ...........................................................................1
Chapter 1 Introduction ...............................................................2
1.1 Overview of the Converter ..........................................2
1.2 Conventions ................................................................3
1.3 Features......................................................................3
1.4 Connectors and Network Cables Supported...............3
1.5 Appearance Indication ................................................4
1.5.1 LED Indicators ...............................................4
1.5.2 Switch ............................................................6
1.5.3 Link Fault Pass Through Function .................7
Chapter 2 Installation Guide ......................................................9
2.1 Fast Ethernet Media Converter...................................9
2.2 WDM Fast Ethernet Media Converter.........................9
Chapter 3 Configuration...........................................................11
3.1 Installation Procedure ...............................................12
Appendix: Specifications.............................................................13

1
Package contents
The following items should be found in your package:
¾One Converter
¾One AC-DC Power Adapter (DC9V/600mA)
¾One User Guide
¾One Purchasing Guide
Note:
Make sure that the package contains the above items. If any of the
listed items are damaged or missing, please contact your distributor.

2
Chapter 1 Introduction
Thank you for choosing the MC100CM/MC110CS Fast Ethernet
Media Converters
or the MC111CS/MC112CS WDM Fast Ethernet
Media Converters
!
1.1 Overview of the Converter
MC100CM and MC110CS are Fast Ethernet Media Converters.
MC111CS and MC112CS are WDM Fast Ethernet Media Converters,
which adopt WDM (Wavelength Division Multiplexing) technology
that increases the information carrying capacity of fiber via multiplex
transmit and receive signals at different wavelengths on single strand
cable. You can save half cabling cost when you use MC111CS and
MC112CS instead of your original dual fiber converter.
The converter mediates between a 10/100Base-TX segment and a
100Base-FX segment. It is primarily designed for large, higher
speed/bandwidth demanding workgroups that require expansion of
the Fast Ethernet network.
The converter also features the LFP (Link Fault Pass through)
function, and for its procedure illustrates, please refer to the section 1.5.3.
Note:
MC100CM(UN)REV3.0 and MC110CS(UN)REV3.0 can also be
powered by 5VDC adapter.

3
1.2 Conventions
The Converter mentioned in this guide stands for Fast Ethernet
Media Converters or the WDM Fast Ethernet Media Converters
without any explanation.
The TP port mentioned in this User Manual stands for the TX port
without any explanations.
Note:
The four converters are sharing this User Guide. The differences
between them please refer to the table of the section 1.4.
1.3 Features
¾Complies with 802.3u 10/100Base-TX, 100Base-FX standards.
¾Provides one SC fiber connector and one RJ-45 connector.
¾Supports auto negotiation of duplex mode on TP port.
¾Supports auto negotiation of 10/100Mbps and auto MDI/MDI-X for
TP port.
¾Supports Link Fault Pass Through function and Far End Fault
function.
¾Extends fiber distance up to 2km for multi-mode fiber and 20km
for single-mode fiber.
¾Easy-to-view LED indicators provide status to monitor network
activity easily.
¾External power supply.
1.4 Connectors and Network Cables Supported
The connectors and network cables supported by the converter are
listed as follows.

4
¾Connectors: RJ-45, SC.
¾Network Cables: Cat.5 Twisted-Pair (below abbreviated as
TP), 9/125um Single-mode fiber and 50/125, 62.5/125um
Multi-mode fiber.
Model NO. Interface Transmission
Distance
Transmission
Media
Output Center
Wavelength
MC100CM RJ45--SC 2km Multi-mode
Fiber, TP 850nm
MC110CS RJ45--SC 20km Single-mode
Fiber, TP 1310nm
MC111CS RJ45--SC 20km Single-mode
Fiber, TP
1550nmTX
1310nmRX
MC112CS RJ45--SC 20km Single-mode
Fiber, TP
1310nmTX
1550nmRX
1.5 Appearance Indication
1.5.1 LED Indicators
The converter has LED indicators which can provide a real-time
report. When you take a look at these indicators, you will know what’s
happening on your network. For details, please refer to the table as
shown below.

5
Name Status Indication
On Power on
PWR
Off Power off
On The Link Fault Pass Through function enable.
LFP
Off The Link Fault Pass Through function disable.
On There’s a valid link.
Flashing The converter is receiving or transmitting
data from the fiber optic connector.
FX Link/Act
Off There’s no valid link.
On The TP port is connected to 100Base-Tx
SPD
Off The TP port is connected to 10Base-Tx
device or no connection.
On The TP port is operating in Full-Duplex
Flashing There’s a collision.
FDX/Col
Off The TP port is operating in Half-Duplex mode.
On There’s a valid link.
Flashing The converter is receiving or transmitting
data from the TP port.
TP
Link/Act
Off There’s no connection on the TP port.

6
1.5.2 Switch
¾TP_AUTO: The TP port operates in Auto-Negotiation mode;
¾TP_DIS: The TP port operates in FORCE mode;
¾TP_100M: The TP port operates in 100Base-Tx;
¾TP_10M: The TP port operates in 10Base-T mode;
¾TP_FDX: The TP port operates in Full-Duplex mode;
¾TP_HDX: The TP port operates in Half-Duplex mode;
¾LFP_OFF: The Link Fault Pass Through function disable;
¾LFP_ON: The Link Fault Pass Through function enable.
Connect different devices, we suggest leaving the switches like these
as shown below, otherwise the Media Converter may not work
normally.

7
The Mode Of The Device Switch
TP:AUTO; LFP ON TP_AUTO, TP_100M, TP_FDX,
LFP_ON
TP:AUTO; LFP OFF TP_AUTO, TP_100M, TP_FDX,
LFP_OFF
TP:FORCE,100M,FULL; LFP ON TP_DIS, TP_100M, TP_FDX,
LFP_ON
TP:FORCE,100M,FULL; LFP OFF TP_DIS, TP_100M, TP_FDX,
LFP_OFF
TP:FORCE,100M, HALF; LFP ON (TP_DIS or TP_AUTO), TP_100M,
TP_HDX, LFP_ON
TP:FORCE,100M, HALF; LFP OFF (TP_DIS or TP_AUTO), TP_100M,
TP_HDX, LFP_OFF
TP:FORCE,10M,FULL; LFP ON TP_DIS, TP_10M, TP_FDX,
LFP_ON
TP:FORCE,10M,FULL; LFP OFF TP_DIS, TP_10M, TP_FDX,
LFP_OFF
TP:FORCE,10M, HALF; LFP ON (TP_DIS or TP_AUTO), TP_10M,
TP_HDX, LFP_ON
TP:FORCE,10M, HALF; LFP OFF (TP_DIS or TP_AUTO), TP_10M,
TP_HDX, LFP_OFF
Note:
1) We suggest leaving the switches on TP_AUTO, TP_100M,
TP_FDX, and LFP_ON, because this configuration is suitable for
lots of situations.
2) You have to reset the converter after configuring the switches.
1.5.3 Link Fault Pass Through Function
In common situations, when one side of the link fails, the other side
continues transmitting packets, and waiting for a response that never
arrives from the disconnected side.

8
With the Link Fault Pass Through function enabled (optional with
switch LFP), TP port and FX port of the same converter will inform
each other the fault link status so that when one side of the link fails,
the other side will force the link to shut down as soon as noticed. The
procedure will be illustrated as shown below.
If link fail happens on TP port (A), the FX port (A) sends non-idle
pattern to notice the FX port (B). The FX port (B) then forces its TP
port (B) to link failed after receiving the non-idle pattern. Link status
LED will also be off for both Converters and Devices as shown below.
Link LED
Device A Off
Device B Off
FX_LFP FX_Link/Act TP_Link/Act
Converter A On Off Off
Converter B On Off Off

9
Chapter 2 Installation Guide
2.1 Fast Ethernet Media Converter
1. The SC fiber connector of MC100CM transmits/receives data by
850nm short wave laser on multi-mode fiber.
2. The SC fiber connector of MC110CS transmits/receives data by
1310nm short wave laser on single-mode fiber.
Transmits and receives data on different fibers
Note:
You have to use either two MC100CM connectors or two MC110CS
connectors to cooperate.
2.2 WDM Fast Ethernet Media Converter
1. The SC fiber connector of MC111CS transmits data by 1550nm
short wave laser while receives data by 1310nm short wave laser
on one single-mode fiber.

10
2. The SC fiber connector of MC112CS transmits data by 1310nm
short wave laser while receives data by 1550nm short wave laser
on one single-mode fiber.
Transmits and receives data on the same fiber
Note:
You have to use MC111CS and MC112CS at the same time to
cooperate.

11
Chapter 3 Configuration
In order to achieve the aim of effectively expanding a Fast Ethernet
network, you can use the converter like the following examples:
1. Place two converters back to back between the following end
devices.
Note:
You should use two MC100CM Media Converters or two MC110CS
Media Converters, or one MC111CS and one MC112CS to expand
your network. Error will occur when you use other ways.
2. Another effective application is to place one converter directly
between a 10/100Base-TX network and a 100Base-FX device.

12
3.1 Installation Procedure
Use a fiber cable to connect two converters, or connect a converter
with a 100Base-FX Device.
1. Connection of a Converter and a 10/100Base-TX Device (HUB or
Switch).
•Make sure that the length of the Cat.5 twisted pair cable
between the 10/100Base-TX device and the converter is less
than 100 meters.
•Connect one end of the Cat.5 twisted pair cable to the RJ45
jack on the converter and the other end of the cable to the
RJ45 jack on the 10/100Base-TX device.
2. Connection of two Converters or a Converter and a 100Base-FX
Device.
•Use a SC fiber cable to connect the two Converters’ SC
connector or the SC connecter of a Converter and a
100Base-FX Device.
3. Turn on the power.

13
Appendix: Specifications
Standard IEEE 802.3 / IEEE 802.3u
Connector 1 SC fiber optic; 1 RJ45 jack
Cat.5 Twisted Pair:100m
Multi-mode Fiber Optic: 2km
Max.
Distance
Single-mode Fiber Optic: 20km
Operation: 0ºC ～40ºC
Temperature
Storage: -40ºC ～70ºC
Storage: 5% ～90% RH
Non-condensing
Humidity
Working: 10% ～90% RH
Non-condensing