NETSYS is a trademark of National Enhance Technology Corp.
Other brand and product names are registered trademarks or trademarks of their respective holders.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect
to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the
device, National Enhance Technology Corp. hereby disclaims any and all warranties and liabilities of any kind, including without
limitation warranties of non-infringement of intellectual property rights of any third party.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETSYS reserves the right to make changes to
the products described in this document without notice. NETSYS does not assume any liability that may occur due to the use or
application of the product(s) or circuit layout(s) described herein.
Maximum signal rate derived from IEEE Standard specifications. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual
data throughput rate. Netsys does not warrant that the hardware will work properly in all environments and applications, and makes
no warranty and representation, either implied or expressed, with respect to the quality, performance, merchantability, or fitness for
a particular purpose. Make sure you follow in line with the environmental conditions to use this product.
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NM-102 KIT MEDIA CONVERTER SERIES USER’S MANUAL Ver. A6
Foreword
The NM-102 A20/B20 is a WDM Ethernet media converter that translates transmission signals from a twisted-pair
100BASE-TX cable to 100BASE-FX fiber optic cable. NM-102 A20 is for CO side. NM-102 B20 is for CPE side. It expands
network data transmission distances beyond the 100 meters limitation of copper wire to a maximum of 20 km by using
single fiber optic cable in 100 Mbps.
The NM-102 A20/B20 provides auto-sensing detection of full duplex or half duplex signaling. It has easy-to-read diagnostic
LED for continuous status reports on network speed, duplex media access control connection, and network traffic. The
NM-102 A20/B20 uses standard RJ-45 UTP/STP and SC fiber optic connectors and is IEEE 802.3u 100BASE-TX/FX
compliant and operates with all devices that adhere to this standard.
Attention:
Be sure to read this manual carefully before using this product. Especially Legal Disclaimer, Statement
of Conditions and Safety Warnings.
Caution:
The NM-102 A20/B20 is for indoor applications only. This product does not have waterproof protection, please do not use in
outdoor applications.
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NM-102 KIT MEDIA CONVERTER SERIES USER’S MANUAL Ver. A6
Safety Warnings
For your safety, be sure to read and follow all warning notices and instructions before using the device.
DO NOT open the device or unit. Opening or removing the cover may expose you to dangerous high voltage points or other
risks. ONLY qualified service personnel can service the device. Please contact your vendor for further information.
Use ONLY the dedicated power supply for your device. Connect the power to the right supply voltage (110V AC used for
North America and 230V AC used for Europe. NM-102 supports 5 VDC power input).
Place connecting cables carefully so that no one will step on them or stumble over them. DO NOT allow anything to rest on
the power cord and do NOT locate the product where anyone can work on the power cord.
DO NOT install nor use your device during a thunderstorm. There may be a remote risk of electric shock from lightning.
DO NOT expose your device to dampness, dust or corrosive liquids.
DO NOT use this product near water, for example, in a wet basement or near a swimming pool.
Connect ONLY suitable accessories to the device.
Make sure to connect the cables to the correct ports.
DO NOT obstruct the device ventilation slots, as insufficient air flow may harm your device.
DO NOT place items on the device.
DO NOT use the device for outdoor applications directly, and make sure all the connections are indoors or have waterproof
protection place.
Be careful when unplugging the power, because it may produce sparks.
Keep the device and all its parts and accessories out of the reach of children.
Clean the device using a soft and dry cloth rather than liquid or atomizers. Power off the equipment before cleaning it.
This product is recyclable. Dispose of it properly.
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NM-102 KIT MEDIA CONVERTER SERIES USER’S MANUAL Ver. A6
2.1 Front Panel ............................................................................................................................................................................7
2.3 LED Indicators.......................................................................................................................................................................8
Chinese SJ/T 11364-2006.................................................................................................................................. 18
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NM-102 KIT MEDIA CONVERTER SERIES USER’S MANUAL Ver. A6
Chapter 1.
Unpacking Information
1.1 Check List
Thank you for choosing Netsys NM-102. Before installing the router, please verify the contents inside the package.
Package Contents:
1. NM-102 A20 x 1
2. NM-102 B20 x 1
3. AC to DC (5V) Power Adaptor x 2
Notes:
1. Please inform your dealer immediately for any missing or damaged parts. If possible, retain the carton including the
original packing materials. Use them to repack the unit in case there is a need to return for repair.
2. If the product has any issue, please contact your local vendor.
3. Do not use sub-standard power supply. Before connecting the power supply to the device, be sure to check
compliance with the specifications. The NM-102 uses a DC 5V/1A power supply.
4. The power supply included in the package is commercial-grade. Do not use in industrial-grade applications.
5. Please look for the QR code on the bottom of the product, the user can launch the QR code scanning program to
scan and download the user’s manual electronic format file.
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NM-102 KIT MEDIA CONVERTER SERIES USER’S MANUAL Ver. A6
Chapter 2.
This section describes the important parts of the converter. It features the front and rear panel.
Hardware Description
NM-102KIT Outward
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NM-102 KIT MEDIA CONVERTER SERIES USER’S MANUAL Ver. A6
2.1 Front Panel
2.2 Rear Panel
Figure 2.1 NM-102’s front panel
Figure 2.2 NM-102’s rear panel
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2.3 LED Indicators
FX
LEDs Color Status
FX LINK Green ON Optic fiber is connected
FX full duplex Green ON Full Duplex
POWER/PWR Green ON 5-V power is turned on
TX
LEDs Color Status
ETHERNET LINK Green ON RJ-45 Ethernet is connected
FX full duplex Green ON Full Duplex
10/100M Speed Green ON 100M Speed
Descriptions
Descriptions
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2.4 Installation
NM-102A20
NM-102B20
DC5V
FIBER
LAN
C P E
TX
RJ45 Ethernet
Optical Fiber
Figure 2.3 Applicaiotn diagram
DC5v
FIBER
TX
LAN
RJ45 Ethernet
C P E
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NM-102 KIT MEDIA CONVERTER SERIES USER’S MANUAL Ver. A6
Appendix A: Product Specification
Key Features:
1. Support auto-MDIX and 10/100Base T for RJ-45 port
2. Complies with IEEE 802.3 for 10BaseT/802.3u for 100Base-TX and 100Base-FX.
3. Supports WDM duple mode for TX/RX on single fiber cable
4.Compact in size, easy installation
5. Data Transfer Rate: 100Mbps
6. Duplex mode support: Full or half-duplex mode by Auto-Negotiation
7. LED indicators: PWR, LNK/ACT, SPD, FDX for copper RJ-45 LINK/ACT, FDX for Fiber optic.
8. Fiber: Single Mode: 8.3/125, 8.7/125, 9/125µm optic fiber and up to 20km
9. EMI certified by CE, FCC
10. External Power Adapter:Input:AC 85~240 volts/50~60Hz.Output:DC 5V/1A
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1. NM-102KIT of acceptable db loss of the fiber-optic cable connected is 18dBm.
2. NM-102 dose not accept SC/APC (angle-polished connectors) connector. NM-102 can accept SC/UPC (ultra-polished
connectors) connector.
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Appendix B: Troubleshooting
Diagnosing Media Converter Indicators
The Media Converter can be easily monitored through its comprehensive panel indicators. These indicators assist in identifying
problems the Media Converter may encounter. This section describes common problems you may encounter and possible
solutions
1. Symptom: POWER indicator does not light up (green) after power on.
Cause: Defective power outlet, power cord, internal power supply
Cheek the power outlet by plugging in another that is functioning properly.
Solution :
2. Symptom: Link indicator does not light up (green) after making a connection.
Check the power cord with another device. If these measures fail to resolve the problem, have the unit power
supply replaced by an qualified distributor.
Cause:
Solution :
3. Question: Can you please find out what the maximum transmit unit (MTU) is for the NM-102 units?
Answer: The MTU for the NM-102 is 1600 bytes.
Network interface (e.q., a network adapter card on the attached device, network cable) or switch port is
defective.
Verify if both of the switch and attached device are powered on.
Be sure the cable is plugged into both the switch and corresponding device.
Verify that the proper cable type is used and its length does not exceed specified limits.
Check the adapter on the attached device and cable connections for possible defects.
Replace the defective adapter or cable if necessary.
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Appendix C: Compliance and Safety Information
FCC Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a computing device, pursuant to Part 15 of FCC
class A rules. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generate, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. The equipment and the receiver should be connected to outlets on separate circuits.
4. Consult the dealer or an experienced radio/television technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to
operate the equipment.
If this telephone equipment causes harm to the telephone network, the telephone company will notify you in advance that
temporary discontinuance of service may be required. But if advance notice isn’t practical, the telephone company will
notify the customer as soon as possible. Also, you will be advised of your right to file a complaint with the FCC if you believe
it is necessary.
The telephone company may make changes in its facilities, equipment, operations or procedures that could affect the
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proper functioning of your equipment. If they do, you will be notified in advance in order for you to make necessary
modifications to maintain uninterrupted service.
This equipment may not be used on coin service provided by the telephone company. Connection to party lines is subject to
state tariffs.
Important Safety Instructions
Caution: The direct plug-in wall transformer serves as the main product for disconnecting. The socket outlet shall be
installed near the product and be readily accessible.
Caution: Use only the power supply included with this product. In the event the power supply is lost or damaged:In the
United States, use only with CSA certified or UL listed Class 2 power supply, rated 5Vdc 1A or above.
IN Europe, use only with CE certified power supply, rated 5Vdc 1A or above.
Do not use this equipment near water, for example in a wet basement.
Avoid using a telephone during an electrical storm. There may be a remote risk of electrical shock from lightning.
Do not use the telephone to report a gas leak in the vicinity of the leaking area.
If you experience trouble with this unit, please contact customer service of your dealer immediately.
DO NOT DISASSEMBLE THIS EQUIPMENT. It does not contain any user serviceable components.
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FCC Warning
This equipment has been tested 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 can
generate, use, and 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 owner’s
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.
WEEE Warning
To avoid the potential effects on the environment and human health as a result of the presence of hazardous
substances in electrical and electronic equipment, end users of electrical and electronic equipment should
understand the meaning of the crossed-out wheeled bin symbol. Do not dispose of WEEE as unsorted municipal
waste and have to collect such WEEE separately.
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Warranty
The original owner that the product delivered in this package will be free from defects in material and workmanship for one
year parts after purchase. For the warranty to apply, you must register your purchase by returning the registration card
indicating the date of purchase.
There will be a minimal charge to replace consumable components, such as fuses, power transformers, and mechanical
cooling devices. The warranty will not apply to any products which have been subjected to any misuse, neglect or
accidental damage, or which contain defects which are in any way attributable to improper installation or to alteration or
repairs made or performed by any person not under control of the original owner.
The above warranty is in lieu of any other warranty, whether express, implied, or statutory, including but not limited to any
warranty of merchantability, fitness for a particular purpose, or any warranty arising out of any proposal, specification, or
sample. We shall not be liable for incidental or consequential damages. We neither assume nor authorize any person to
assume for it any other liability.
WARNING:
1. DO NOT TEAR OFF OR REMOVE THE WARRANTY STICKER AS SHOWN, OR THE WARRANTY IS VOID.
2. WARRANTY VOID IF USE COMMERCIAL-GRADE POWER SUPPLY IS USED AT HARSH ENVIRONMENTS.
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