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Trademarks
Trademarks mentioned in this publication are used for identification
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Federal Communications
Commission (FCC)
FCC Interference Statement
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 operations.
2
MC100FX-SC2/30 User’s Guide
FCC Warning
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 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.
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.
Taiwanese BSMI (Bureau of Standards,
Metrology and Inspection) A Warning:
Certifications
Refer to the product page at www.zyxel.com.
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is
free from any defects in materials or workmanship for a period of up to
two years from the date of purchase. During the warranty period, and
upon proof of purchase, should the product have indications of failure
due to faulty workmanship and/or materials, ZyXEL will, at its
discretion, repair or replace the defective products or components
without charge for either parts or labor, and to whatever extent it shall
3
MC100FX-SC2/30 User’s Guide
deem necessary to restore the product or components to proper
operating condition. Any replacement will consist of a new or remanufactured functionally equivalent product of equal value, and will
be solely at the discretion of ZyXEL. This warranty shall not apply if
the product is modified, misused, tampered with, damaged by an act of
God, or subjected to abnormal working conditions.
Note
Repair or replacement, as provided under this warranty, is the exclusive
remedy of the purchaser. This warranty is in lieu of all other warranties,
express or implied, including any implied warranty of merchantability
or fitness for a particular use or purpose. ZyXEL shall in no event be
held liable for indirect or consequential damages of any kind of
character to the purchaser.
To obtain the services of this warranty, contact ZyXEL's Service Center
for your Return Material Authorization number (RMA). Products must
be returned Postage Prepaid. It is recommended that the unit be insured
when shipped. Any returned products without proof of purchase or
those with an out-dated warranty will be repaired or replaced (at the
discretion of ZyXEL) and the customer will be billed for parts and
labor. All repaired or replaced products will be shipped by ZyXEL to
the corresponding return address, Postage Paid. This warranty gives you
specific legal rights, and you may also have other rights that vary from
country to country.
Safety Warnings
1. Do not use this product near water, for example, in a wet basement or
near a swimming pool.
2. Avoid using this product during a thunderstorm. There may be a risk
of electric shock from lightening.
General Syntax Conventions
For brevity’s sake, we will use “e.g.” as shorthand for “for
instance”, and “i.e.” as shorthand for “that is” or “in other words”
throughout this manual.
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MC100FX-SC2/30 User’s Guide
The MC100FX-SC2 and MC100FX-SC30 may be referred to as
the MC100 or media converter or device in this manual.
ZyXEL Web Site
The ZyXEL download library at www.zyxel.com contains additional
support documentation and an online glossary of networking terms.
Please have the following information ready when you contact customer
support.
WORLDWIDE NORTH AMERICA GERMANY
Tel: +886-3-578-3942
Fax: +886-3-578-2439
Email: sales@zyxel.com.tw
http://www.zyxel.com
http://www.zyxel.com.tw
SPAIN FRANCE DENMARK
Tel: +34 902 195 420
Fax: +34 913 005 345
Email: sales@zyxel.es
http://www.zyxel.es
NORWAY SWEDEN FINLAND
Tel: +47 22 80 61 80
Fax: +47 22 80 61 81
Email: sales@zyxel.no
http://www.zyxel.no
Tel: +1-800-255-4101
Tel: +1-714-632-0882
Fax: +1-714-632-0858
Email: sales@zyxel.com
http://www.us.zyxel.com
Tel: +33 (0)4 72 52 97 97
Fax: +33 (0)4 72 52 19 20
Email: info@zyxel.fr
http://www.zyxel.fr
Tel: +46 31 744 7700
Fax: +46 31 744 7701
Email: sales@zyxel.se
http://www.zyxel.se
Tel: +49 2405 6909 0
Fax: +49 2405 6909 99
Email: sales@zyxel.de
http://www.zyxel.de
Tel: +45 39 55 07 00
Fax: +45 39 55 07 07
Email: sales@zyxel.dk
http://www.zyxel.dk
Tel: +358-9-4780 8400
Fax: +358-9-4780 8448
Email: sales@zyxel.fi
http://www.zyxel.fi
6
MC100FX-SC2/30 User’s Guide
Introduction
The MC100FX-SC media converters allow seamless integration
between a (Fast) Ethernet network using unshielded twisted pair (UTP)
copper cabling and a fiber network.
The MC100FX-SC2 media converter comes with a built-in multimode
fiber transceiver module with SC connector that can be used for
distances of up to 2km.
The MC100FX-SC30 media converter comes with a built-in single
mode fiber transceiver module with SC connector that can be used for
distances of up to 30km.
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MC100FX-SC2/30 User’s Guide
Use the LEDs to quickly check status and the DIP switches to set
transmission settings and “link loss forwarding”.
Key Features
Each media converter has the following key features:
Converts speed and media type
Built-in fiber transceiver module with SC connector
Auto-crossover Ethernet port (auto MDI/MDI-X detection allows
use of either straight-through or crossover Ethernet cables)
Auto-negotiating Ethernet port (can detect and adjust to the
optimum speed (10/100Mbps) and mode (full duplex or half
duplex) of the connected device)
LED status display
DIP switches to configure fiber link negotiating defaults, Link
Loss Forwarding and store-and-forward switching
Link Loss Forwarding to notify the peer link if a link goes down
Fiber Modes
Multi-Mode Fiber (MMF) allows more than one mode of light to
propagate through the cable at one time. It is usually used as horizontal
cable (cable from your equipment room to each designated outlet or
8
MC100FX-SC2/30 User’s Guide
work area) and sometimes as backbone cable (between equipment
closets or rooms).
Light in a Single-Mode Fiber (SSF) travels straight down the fiber and
does not bounce off the surrounding cladding as it travels. This is most
commonly used by telephone companies and as backbone cable.
Applications
In the following figures, “A” is the media converter, “B” is a 10/100
Mbps Ethernet switch and “C” is a layer-3 switch with 100Mbps fiber
module.
MC100FX-SC2 MMF Applications
Use MC100FX-SC2 media converter for multimode fiber connections
for distances of up to 2km.
2Km
2Km
MC100FX-SC30 SMF Application
Use the MC100FX-SC30 media converter for single mode fiber
connections for distances of up to 30km.
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MC100FX-SC2/30 User’s Guide
30Km
Hardware
The media converter can be placed on a desktop. Make sure that there is
proper heat dissipation from and adequate ventilation around the device.
Do not place heavy objects on the media converter.
Front Panel
The front panel consists of an RJ-45 port for 100 Mbps UTP
connections, LED indicators, DIP switches and a built-in fiber
transceiver with SC connector.
MC100FX-SC2
MC100FX-SC30
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MC100FX-SC2/30 User’s Guide
100Base-TX Port
Connect an Ethernet cable from a switch to this port. This port is autonegotiating and auto-crossover.
An auto-negotiating port can detect and adjust to the optimum Ethernet
speed (10/100Mbps) and duplex mode (full duplex or half duplex) of
the connected device. An auto-crossover (auto-MDI/MDI-X) port
automatically works with a straight-through or crossover Ethernet cable.
LED Indicators
The following table describes the LEDs in detail.
LED STATUS DESCRIPTION
PWR Green The media converter is on.
Off The media converter is off.
100 Green The media converter has a 100Mbps Ethernet
Off The media converter has a 10Mbps Ethernet
LNK/ACT
(Ethernet)
Blinking The media converter Ethernet port is
Off The media converter Ethernet link is down.
FDX/COL
(Ethernet)
Blinking Packet collisions are occurring on the Ethernet
Off The Ethernet port is operating in half-duplex
Green The media converter Ethernet link is up.
Orange The Ethernet port is operating in full-duplex
connection.
connection or no Ethernet connection.
transmitting or receiving.
mode.
port.
mode or the Ethernet link is down.
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MC100FX-SC2/30 User’s Guide
LED STATUS DESCRIPTION
LNK/ACT
(Fiber)
Blinking The media converter is transmitting or
Off The media converter fiber link is down.
FDX/COL
(Fiber)
Blinking Packet collisions are occurring on the fiber
Off The fiber port is operating in half-duplex mode
Green The media converter fiber link is up.
receiving on the fiber link.
Orange The fiber port is operating in full-duplex mode.
port.
or the fiber link is down.
Link Loss Forwarding
Without Link Loss Forwarding, if one side of a link fails (), the
other side will keep on transmitting packets () and wait for responses
that will never arrive.
With Link Loss Forwarding, a link down () detected on the Ethernet
port will force a link down on the fiber port and vice-versa. The up link
() will stop transmitting and turn "off" as soon as the remote link is
down.
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MC100FX-SC2/30 User’s Guide
DIP Switches
All DIP switches are off by default.
DIP
Switch 1
DIP
Switch 2
DIP
Switch 3
DIP
Switch 4
The Ethernet link is auto-negotiating when the switch is off.
Turn it on to force the Ethernet link to be up at only 100Mbps
in full duplex mode.
The fiber link operates in full-duplex mode when the switch is
off. Turn it on to have the fiber link operate in half-duplex
mode.
Turn this switch on to enable Link Loss Forwarding. A
message is sent to the Ethernet port if the fiber link goes
down (thus forcing the Ethernet link down) and vice-versa.
When this switch is off, the Ethernet port uses a store-andforward switching scheme, in which incoming data frames are
first stored in buffer memory and checked for errors before
being forwarded. Turn this switch on to have the Ethernet port
operate in pure converter mode in which the port forwards the
received data frame immediately after being received (without
error checking).
Do not turn a DIP switch on or off when a port is transmitting
or receiving data as it may cause data error or loss.
Fiber Transceiver
The MC100FX-SC2 comes with a built-in multimode fiber transceiver
with SC connector that can be used for connections of up to 2km.
The MC100FX-SC30 comes with a built-in single mode fiber
transceiver with SC connector that can be used for connections of up to
30km.
SFP transceiver modules are dust sensitive. Avoid getting dust and other
contaminants into them.
SFP transceivers are equipped with a Class 1 laser, which emits
invisible radiation. To avoid possible eye injury, do not look into an
operating fiber-optic module’s connectors. Laser radiation is also
present when the media converter is turned on.
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MC100FX-SC2/30 User’s Guide
Use DIP switch 2 to change the default fiber connection
settings.
Rear Panel
The rear panel contains a power port. Connect the included power
adapter (9V DC voltage with minimum 0.7A current) to the port labeled
9VDC and connect the power adaptor to a power supply (outlet).
Specifications
ITEM SPECIFICATION
Ethernet and
Fiber Standards
Fiber
Wavelength
Fiber Distance
Ethernet Port CAT-5 (100Mbps) unshielded twisted pair cable.
IEEE802.3 10BASE-T
IEEE802.3u 100BASE-TX/100BASE-FX
IEEE802.3x Flow Control and Back pressure
Transceiver with SC connector.
1310nm(Multi-mode) 1310nm(Single-mode)
Multi-Mode Fiber (2KM) Single-Mode Fiber (30 KM)
Auto-crossover (MDI/MDI-X) and auto-negotiation
support
14
MC100FX-SC2/30 User’s Guide
ITEM SPECIFICATION
LEDs PWR, 100, 2 LNK/ACT, 2 FDX/COL
Power External adapter: 9V DC at minimum 0.7A
Dimensions 119 x 85 x 26 Millimeters
4.68504 x 3.34646 x 1.02362 Inches
Safety UL, cUL
Temperature Operating: 0 ~ 45oC (32 ~ 113 oF)
Storage: -10 ~ 70
Humidity Operating: 10 ~ 90% (non-condensing)
Storage: 10 ~ 90% (non-condensing)
EMC FCC Part15 (Class A)
CE EMC (Class A)
o
C (14 ~ 158 oF)
15
MC100FX-SC2/30 User’s Guide
Troubleshooting
Use the LEDs to identify possible problems and then take corrective
action.
PROBLEM POSSIBLE CAUSES AND REMEDIES
The PWR LED
is off
The 100M LED
is off
The LNK/ACT
(Ethernet) LED
is off
Make sure you are using the supplied power adaptor
and that it is plugged in to an appropriate power source.
Check that the power source is turned on.
If the problem persists, you may have a hardware
problem. In this case, you should contact your local
vendor.
Check if the media converter has a connection with a
10Mbps Ethernet device.
Check the Ethernet cable connection between the
media converter and the Ethernet device. The distance
between them should not be more than 100 meters
Check for faulty Ethernet cables.
If the connected Ethernet device does not support autonegotiating, turn on DIP switch 1 to force a 100 Mbps
full-duplex link.
If Link Loss Forwarding is enabled (DIP switch 3 is on),
then check if the fiber link is down (thereby forcing the
Ethernet link down).
Check the Ethernet cable connection between the
media converter and the Ethernet device. The distance
between them should not be more than 100 meters
Check for faulty Ethernet cables.
Check that the Ethernet device supports autonegotiating at half/full duplex and 100MBps speed.
If Link Loss Forwarding is enabled (DIP switch 3 is on),
then check if the fiber link is down (thereby forcing the
Ethernet link down).
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MC100FX-SC2/30 User’s Guide
PROBLEM POSSIBLE CAUSES AND REMEDIES
The FDX/COL
(Ethernet) LED
is off
The LNK/ACT
(Fiber) LED is
off
The FDX/COL
(Fiber) LED is
off
The RJ-45 port is operating in half-duplex mode or the
Ethernet link is down. See above for possible causes
and remedies.
Check the fiber cable connection between the media
converter and the remote device. Check that the
distance between them does not exceed limits for
single mode (MC100FX-SC30) or multi mode fiber
(MC100FX-SC2).
Check for faulty cables.
Check what duplex mode the remote device supports
and then set DIP switch 2 (off for full-duplex and on for
half-duplex).
If Link Loss Forwarding is enabled (DIP switch 3 is on),
then check if the Ethernet link is down (thereby forcing
the fiber link down).
The fiber port is operating in half-duplex mode or the
fiber link is down. See above for possible causes and
remedies.
17
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