miConverter Gx

1000BASE-T to 1000BASE-X Gigabit Ethernet Media Converter

miConverter Gx
Application Example




  • Miniature Gigabit Ethernet media converter
  • Supports 1000BASE-T, 1000BASE-X and the IEEE 802.3 specification
  • Plug-and-Play capability
  • USB power via optional Power Adapter Cable
  • Supports Full/Half-Duplex fiber optic auto-negotiation
  • Multimode and single-mode fiber options
  • LED indicators for UTP and fiber status
  • Domestic, Universal and Country/Region specific power supply options
  • Wall-mount with optional mounting brackets or included Velcro® strips
  • Small and lightweight (5 ounces)
  • Cost-effective
  • Lifetime Warranty and free 24/7 Technical Support


The miConverter Gx connects to the laptop via two cables. The USB Power Adapter Cable powers the miConverter Gx by drawing electrical current from the USB port (1.0 or 2.0) of the laptop. The UTP cable links the laptop network port and the miConverter Gx copper port. The miConverter Gx converts the 1000BASE-T UTP signal to a 1000BASE-X fiber signal, which can extend the fiber link up to 80km. Power from the USB port of the computer is automatically shut off when the computer is powered down, turning off the miConverter Gx when fiber conversion is no longer needed.

The miConverter Gx is a miniature 1000BASE-T UTP copper to 1000BASE-X fiber Gigabit Ethernet media converter. The miConverter Gx provides cost-effective fiber connectivity from Gigabit switches to diagnostic equipment, desktop and laptop computers.

The miConverter Gx is the first Gigabit media converter powered by a USB port (1.0, 1.1, and 2.0). An optional USB Power Adaptor Cable is available, which reduces the module's weight and eliminates the need to tether the miConverter Gx to an electrical outlet.

The Plug-and-Play capability of the miConverter Gx simplifies fiber-to-the-laptop and fiber-to-the-desktop deployments. The miConverter Gx features auto-negotiation, which allows connected network devices to auto-negotiate their Duplex and Pause modes. The miConverter Gx also provides manual configuration with built-in DIP-switches for compatibility with legacy Gigabit fiber products. These features ensure the miConverter Gx is compatible with the widest range of Gigabit fiber equipment.

The miConverter Gx is available in multimode dual fiber, single-mode dual fiber and single-mode single-fiber options. It supports SC and ST connectors with fiber link distances up to 550m over MM fiber, 80km over SM fiber and 40km over single-fiber.

The miConverter Gx supports industry standard wavelengths depending on the fiber type. For multimode dual fiber, the miConverter Gx uses 850nm (Sx). When using single-mode dual fiber models with distances of up to 34km, the miConverter Gx uses 1310nm (Lx). For distances of up to 80km, the miConverter Gx uses 1550nm (Zx).

Single-mode single-fiber miConverter Gx models use 1310nmTx/1550nmRx and 1550nmTx/1310nmRx wave division multiplexing. The SF converters must be used in pairs where the transmit (Tx) wavelength of one converter matches the receive (Rx) wavelength of the other.

The LED indicators provide diagnostic data such as availability of power, port activity, link status, and Duplex modes to assist in network installation and maintenance.

The miConverter Gx combines Gigabit Ethernet connectivity with the lightweight design and low power consumption required for both permanent deployment and mobile service networks.

The external AC power supply is available in US, Universal and Country/Region specific models. Country/Region specific models feature optional interchangeable connectors, allowing for compatibility with electrical outlet types found around the world.

The miConverter Gx can be mounted in the miConverter 18-Module Power Chassis to consolidate individual modules into a rack-mount form factor that can be deployed where multiple fiber optic links are distributed from UTP switch equipment. The chassis powers converter modules with barrelstyle DC connectors, and is available with a single universal AC, 24VDC or 48VDC internal power supply. This compact, high-density chassis is 1.5 rack units high, and can be mounted in a standard 19” or 23” equipment rack.

Weighing less than 5 oz. with the USB Power Adapter Cable, the miConverter Gx can easily fit into any pocket or laptop carrying case. It can also be attached to portable equipment using the included Velcro® strips or wall-mounted using the optional wall-mounting bracket kit.


  miConverter Gx
Description 1000BASE-T UTP to 1000BASE-X Fiber
Converter with Auto-negotiation
Protocols 802.3ab, 1000BASE-T, 1000BASE-X
Cable Types  
UTP EIA/TIA 568A/B, Category 5 and higher
Fiber Multimode: 50/125, 62.5/125, 100/140 um,
Single-mode: 9/125 um
Connector Types


Fiber Dual fiber: SC, ST
Single-fiber: SC
LED Display Pwr, FO-Lk/Act, UTP-Lk/Act, FO-AN/MAN, HDX/FDX
Power Requirements  
DC Power 0.5A @ 5VDC
DC Power Connector 2.5mm DC Jack
AC Power Adapter
0.03A @ 120VAC
AC Power Adapter [Universal] 100-240VAC/50-60Hz
0.03A @ 120VAC
Dimensions W:1.71" x L:4.10" x H:0.84"
without power adapter 5 oz.
with USB power adapter 6 oz.
with AC power adapter [US] 12 oz.
Compliance UL, CE, FCC Class A
Standard 0 to +50ºC
Storage Temperature -50 to +80ºC
Humidity (non-condensing) 5 to 95%
Altitude -100m to 4000m
MTBF (hrs)  
without power adapter 810,000
with US and Country/Region Specific power adapter 250,000
with Universal power adapter 100,000
Multimode [MM] or Single-Mode [SM] /
Dual Fiber [DF] or Single-Fiber [SF]
Tx λ (nm)Rx λ (nm)Min.
Tx Power (dBm)
Tx Power (dBm)
Rx Sense (dBm)
Rx Sense (dBm)
Link Budget
MM/DF 220/550m 1200-0-x 1202-0-x 850 850 -10 -4 -17 -3 7
SM/DF 12km 1201-1-x 1203-1-x 1310 1310 -9.5 -3 -19.5 -3 10
SM/DF 34km - 1203-2-x 1310 1310 -5 0 -23 -3* 18
SM/DF 80km - 1203-3-x 1550 1550 -5 0 -23 -3* 18
SM/SF 20km - 1210-1-x 1310 1550 -9.5 -3 -20 -3 10.5
SM/SF 20km - 1211-1-x 1550 1310 -9.5 -3 -20 -3 10.5
SM/SF 40km - 1210-2-x 1310 1550 -3 0 -20 -3* 17
SM/SF 40km - 1211-2-x 1550 1310 -3 0 -20 -3* 17

When choosing power options, replace (-x) in the model number with the suffix number that corresponds to the selected power supply.

-1 US Power Supply - 120Volt / 60Hz
-2 Universal Power Supply (requires AC power cord) - 100-240Volt / 50-60Hz
-3 European Power Supply - 100-240Volt / 50-60Hz
-4 UK Power Supply - 100-240Volt / 50-60Hz
-5 Australian Power Supply - 100-240Volt / 50-60Hz
-6 USB Power Adapter -8 US/JPN Power Supply - 100-240Volt / 50-60Hz
-8 US/JPN Power Supply - 100-240Volt / 50-60Hz

For power supplies -3, -4 -5 and -8, country/region specific clips are used to provide the necessary power connection.

When using single-fiber media converter models, the Tx wavelength on one end has to match the Rx wavelength on the other.
Contact Omnitron for other fiber options and operational temperature ranges.
* A minimum attenuation of 3db is required for these models.

18-Module AC Powered Chassis 1020-1
18-Module 48VDC Powered Chassis 1025-1
18-Module 24VDC Powered Chassis 1026-1
Wall Mounting Hardware Kit 1091-0
USB Power Adapter 9130-2
US Domestic AC Power Adapter 9113-PS
Universal AC Power Adapter (requires AC power cord) 9115-PS
AC Country/Region Specific Power Adapter w/ European Connector Clip 9116-PS-3
AC Country/Region Specific Power Adapter w/ UK Connector Clip 9116-PS-4
AC Country/Region Specific Power Adapter w/ Australian Connector Clip 9116-PS-5
AC Country/Region Specific Power Adapter w/ Japanese Connector Clip 9116-PS-8
Country/Region Specific European Connector Clip* 9116-3
Country/Region Specific UK Connector Clip* 9116-4
Country/Region Specific Australian Connector Clip* 9116-5
Country/Region Specific Japanese Connector Clip* 9116-8
*All spare Connector Clips can be used with AC Power Adapters 9116-PS-3, 9116-PS-4, 9116-PS-5 and 9116-PS-8