• 10/100M Fast Ethernet Single Fiber Media Converter External Power Supply
  • 10/100M Fast Ethernet Single Fiber Media Converter External Power Supply

10/100M Fast Ethernet Single Fiber Media Converter External Power Supply

No.MR-101S20A/B

Features

Auto-negotiation function allows UTP port to auto select 10M or 100M, and Full Duplex or Half Duplex
UTP port supports MDI/MDI-X auto crossover
Indicator function of link fault (LFP): When the optical fiber or UTP is at fault, the converter could stop all the link
Multiple Optical Transceiver could be chosen: SC, ST or FC
Adopts WDM technology, transmitting and receiving data on one single fiber
Easy-to-view LED indicators to provide monitoring of network system easily
Compliant with IEEE 802.3 10Base-T and IEEE 802.3u 100Base-TX, 100Base-BX Standards
Status LED's for TX,FX LINK/ACT, POWER,100M to easily monitor network status
Internal Circuit of prevented thunder could greatly reduce the damage of the converter caused by thunderbolt induction
ROHS compliant and Lead-Free 10/100M media converter for copper-to-fiber links, supporting single-fiber WDM transmission and stable integration with ethernet switch, network switch, and transceiver deployments.
  • 10/100M Fast Ethernet Single Fiber Media Converter External Power Supply
  • Description

  • Applications

  • Specifications

Description

The MR-101S20A/B and series is a Fast Ethernet media converter designed to convert 10/100BASE-TX copper to 100BASE-BX single fiber. This media converter uses Wavelength-Division Multiplexing (WDM) technology, enabling Bi-Directional communication over a single fiber, doubling the capacity of your existing fiber infrastructure without having to install new cabling.
The MR-101S20A/B is manufactured with the latest IC packages from the USA or Taiwan and a high-quality fiber optical transceiver, which provides a good electrical characteristic to ensure reliable data transmission and long working life. 6 Group LED indicated lights could fully monitor the working conditions of Media Converters. It is easy for end-users to observe network operations. This media converter provides external power as default, it can be as a stand-alone unit or inserted into 14-slot Media Converter Rack Mount Chassis that allows all the media converters to be powered by a single internal power supply.
The MR-101S20A/B 10/100BASE-TX to 100BASE-BX WDM media converter provides 20km(12.4 miles) transmit distance over a single fiber at the wavelength of 1310nm-TX/1550nm-RX or 1550nm-TX/1310nm-RX. It is provided with SC, ST, and FC connector options for different users.



Single-Fiber Fast Ethernet Conversion for Efficient Network Expansion
The 10/100M Fast Ethernet Single Fiber Media Converter is built for organizations that need a practical way to extend Ethernet connectivity over fiber while reducing cabling overhead. By converting 10/100BASE-TX copper to 100BASE-BX single fiber, it supports efficient deployment in space-conscious and cost-aware network environments. For buyers comparing solutions from industrial ethernet switch manufacturers or evaluating a core network switch upgrade path, this converter offers a focused role: dependable media conversion that helps preserve existing infrastructure investment while improving fiber utilization.

WDM Technology and Component Quality That Support Stable Operation
Its core advantage comes from Wavelength-Division Multiplexing technology, which enables bi-directional communication over a single fiber strand rather than requiring dual-fiber links. This effectively increases the use of installed fiber resources and can reduce the need for new cabling projects. The MR-101S20A/B series is produced with current IC packages sourced from the USA or Taiwan and uses quality optical transmission components, giving procurement teams and integrators stronger confidence in day-to-day signal stability. For businesses that also source from optical transceiver manufacturers or manage inventories that include a transceiver, sfp module, ethernet switch, or poe switch, this device fits naturally into a broader structured networking environment.

Well-Suited for Enterprise Edge Links, Security Networks, and Fiber Access Projects
In real deployments, this media converter is a strong choice for connecting remote IP devices, linking building-to-building Fast Ethernet segments, supporting surveillance backhaul, or extending copper-based equipment into fiber access networks without major redesign. It is particularly relevant for system integrators, telecom contractors, and IT teams that need stable point extensions between legacy copper devices and fiber infrastructure. When shortlisted alongside products from top network switch manufacturers, this converter serves as a practical complement where full switch replacement is unnecessary, helping teams build efficient and reliable links with lower installation complexity.


Key Advantages

Stable Single-Fiber Conversion
This media converter changes 10/100BASE-TX copper signals into 100BASE-BX single-fiber transmission through WDM, which allows bi-directional data communication on one fiber strand. For business networks, this is a practical advantage because it helps reduce fiber usage while keeping the existing cabling structure usable. It is well-suited for projects that need a reliable ethernet switch extension path, especially when working with equipment from top network switch manufacturers and related fiber access devices.

Practical Deployment and Maintenance
With an external power supply and a straightforward media conversion design, this unit supports stable daily operation and easier fault isolation during maintenance. In structured network environments, that matters because technical teams can identify link issues between copper and fiber segments more clearly and keep service interruptions under control. It is a practical choice for integrators comparing products from industrial ethernet switch manufacturers, optical transceiver manufacturers, and deployments involving a network switch, transceiver, or linked fiber interface devices.


Use Scenarios

Enterprise Campus and Building Links
In office buildings, school campuses, or business parks, network managers often need to connect copper-based access equipment to fiber backbones across longer distances without adding new fiber lines. This media converter fits that role by turning existing RJ45 Ethernet connections into single-fiber transmission, which helps preserve infrastructure resources and maintain stable Fast Ethernet links. It is well-suited for environments where a network switch must connect to remote cabinets and where compatibility with equipment associated with sfp module and transceiver deployments is important.

Industrial Edge and Security Networks
In factory zones, warehouse monitoring points, or perimeter security installations, users often need a stable way to carry network traffic from field devices back to a central control room over fiber. This converter serves as a practical link device between copper equipment and single-fiber infrastructure, helping support consistent communication in layouts where distance and cabling efficiency matter. It is a suitable option alongside systems that include a poe switch, standard ethernet switch equipment, and solutions sourced from industrial ethernet switch manufacturers for structured industrial or surveillance deployments.


FAQ

Q1. Can this media converter connect our existing copper ethernet switch to a single-fiber link?
Yes, it is designed to convert 10/100BASE-TX copper to 100BASE-BX single fiber. This makes it well-suited for linking an existing network switch on copper to a WDM-based fiber segment, using one fiber strand for bi-directional communication.

Q2. Will this help us expand fiber capacity without installing additional cabling?
The unit uses Wavelength-Division Multiplexing technology for bi-directional transmission over a single fiber. With this approach, we help you use current fiber infrastructure more efficiently, which is practical where spare fiber strands are limited.

Q3. Is this product appropriate for Fast Ethernet applications rather than Gigabit deployments?
This model is specified as a Fast Ethernet media converter, converting 10/100BASE-TX to 100BASE-BX. For buyers comparing suppliers such as industrial ethernet switch manufacturers or optical transceiver manufacturers, we recommend confirming your network speed requirement before selection.

Q4. Do we need an external power source for installation?
Yes, this version is supplied as an external power supply model. Installation typically involves connecting the converter within your copper-to-fiber link and powering it from the included external supply, which supports practical deployment in standard network environments.

Q5. Does this converter use SFP slots or a removable sfp module like some switch platforms?
No, the provided description identifies it as a dedicated 10/100M single-fiber media converter, not a modular transceiver platform. Our specification also does not indicate poe switch functionality, so buyers should evaluate it as a fixed-purpose conversion device.

Product Series

MR-101S20A/B WDM Fiber Media Converter

Standards

IEEE 802.3, IEEE 802.3u, IEEE 802.3x

Wavelength

Type A: 1310nm-TX/1550nm-RX
Type B: 1550nm-TX/1310nm-RX

Transmission Distance

Fiber:
Multi-mode: 2 km (fiber size: 62.5/125 or 50/125 μm)
Single-mode: 25/40/60/100/120 km
UTP:

Cat. 3/4/5/6: 100 m

Port

1 x 10/100BASE-TX RJ45 port
1 x 10/100BASE-BX Single SC port (ST or FC also available)

MDI/MDI-X

Auto selection

Flow control

Full Duplex: IEEE802.3x
Half Duplex: back pressure

Buffer space

128KB

MAC address

1K

LED Indicator

PWR: Green Illuminated to indicate unit is operating under normal operation
TX LNK/ACT: Green Illuminated indicates receiving link pulses from compliant copper device and flashes when data being sent / received
FX LNK/ACT: Green Illuminated indicates receiving link pulses from compliant fiber device and flashes when data being sent / received
100M: Green Illuminated when data packets are being transmitted at 100 Mbps

Transmitter Power

-14 ~ -3 dBm

Receiver Sensitivity

< -34 dBm

Power Supply

Outside: 5 V DC 1 A
Built-in: 100 V to 240 V AC 50 Hz to 60 Hz

Power Consumption

2.5W

Operating Temp

0 °C to +50 °C

Storage Temp

-20 °C to +70 °C

Storage Humidity

5% to 90% (non-condensing)

Dimensions

94 mm × 71 mm × 26 mm

Net Weight

0.165 kg

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