1 channel SD/HD 3G SDI Fiber extender 1080p/60hz

Description Features Drawings Model Selection Specification Documents

3G SDI over fiber, 3G SDI Fiber Extender with RS485 control for data  

Optical Transmitter Receiver kit - F-1MSDI-3G-TX/RX  
Extend 3G, HD-SDI or SD-SDI digital video signals over single-mode fiber optic cable
Base Model F-M1SDI-3G-TX / RX support single mode fiber up to 20Km and it has ST / PC connector

Thor Fiber ultra compact 3G SDI fiber extender kits are designed to increase the range of digital 3G, SD-SDI or HD-SDI video signals over singlemode or multimode fiber optic cable. SDI is normally carried over coax cable on BNC connectors, however the maximum cable distance is limited to around 100 meters. Thor SDI extenders increase the distance to more than 80 miles by using lasers to send data over the fiber cable. 

F-M1SDI-3G-TX/RX kit with ST/PC fiber connector, supports single mode fiber up to 20Km  or 2000 feet over multimode fiber


BUY NOW TX / RX kit - $495

Up to 3G SDI Optical Fiber converters.

It allows the transport of SDI, HD-SDI, and 3G SDI over distances up to 20km using single-mode fiber optic cable or 2000 feet using multimode fiber, with your choice of LC, ST or SC connectors (ST/PC Standard)

  • Supports SMPTE-424m (3G-SDI), SMPTE-292M (HD-SDI), SMPTE-259M (SDL), DVB-ASI specifications
  • Telecast Rattler Comparable
  • Extends up to 15 miles (20km)
  • Transports Multi-rate HD-SDI Digital Video Over Fiber 1 SingleMode Fiber
  • Latch-Locking Power Connector
  • HD-SDI BNC input connector and ST terminated fiber optic connector (diffrent connectors available)
  • Robust metal die-cast enclosure for harsher environments
  • Automatic Input Equalization
  • Input Impedance: 75 Ohm
  • Data Rate: up to 3 Gbps
  • Signal Level: 800mVp-p +/- 50mV
  • Optical Fiber Types: ST (Multi mode and Single mode)
  • Number of Fibers: 1
  • Output Connector: BNC Female
  • Distance: Up to 15 miles (20km) using single-mode fiber. Up to 1 kilometer using multimode fiber
  • Propagation Delay (Sender): 1.3 ns
  • Propagation Delay (Receiver): 35 ns
  • Dimension: Dimensions: 0.77 "W x 0.77" H x 1.97 "D
  • Power Supply: 5V DC @ 0.5 A
  • Power Budget: 13dB
  • Operating Temperature: -20 to + 80C
  • Wavelength (Sender Unit): 1310nm
  • Wavelength (Receiver Unit): 1310 nm - 1670 nm
  • Shipping Weight 1 lbs

SDI 3 GS fiber extender application drawing

Model Selection


XX = Optical connector: SC / PC, FC / PC (same price)


YY = Fiber optic distance 40,60,80,100,120Km (add $)


ZZ = (MM) Multi-mode (SM) Single-mode (same price)

Single mode unit will for multimode fiber for up ro 2000feet

* All Specifiactions Subject to Change Without Notice
HD-SDI Input


0 - 3 Gbps Serial Digital Signal

Input Signal Standard: SMPTE292M, SMPTE259M, SMPTE297M, SMPTE310, SMPTE 424m,

SMPTE 372m SMPTE305 (SDTI), DVB-ASI (EN50083-9), Medi Audio

Number of Input
 1 SDI - (BNC)
 1 RS-485 (terminal block)
Signal Level
> 800mVp-p
20/30/60/80 / 100Km - model selection
mini box
25 × 116 × 110
Power Supply  
130 - 260 VAC @ 50-60 Hz
Power Consumption  
0 to +70 Degree
0 to 95%
ST / PC or (SC / PC or FC / PC per request)

Optical Channels

1310 or (1550nm and CWDM available)

LED Status Indicator Power

Power / Link LED


Supported Standards:

  SMPTE format   bitrates  video formats
270 Mbit / s, 360 Mbit / s, 143 Mbit / s and 177 Mbit / s
480i, 576i
540 Mbit / s
480p, 576p
1,485 Gbit / s and 1,485 / 1,001 Gbit / s
720p, 1080i
SMPTE 372m Dual Link HD-SDI  
2.970 Gbit / s and 2.970 / 1.001 Gbit / s
SMPTE 424m 3G-SDI  
2.970 Gbit / s and 2.970 / 1.001 Gbit / s
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1 HD-SDI + 2 10/100 Ethernet +RS485 + Audio over single fiber TX/RX

The F-1MSDI-2ET is a 1-channel HD-SDI video and 2 10/100 Bi-directional transceiver over single fiber which performs in real-time, loss-free, for high-quality video transmission over an optical single mode fiber. Provides one 100Mb/s Ethernet data(data transmission) which can be widely used in TV live broadcast, high-definition video conferencing, high-definition video monitoring; in addition it also transports 1 RS485 and two optional Analog Audio

Contact us

Thor Broadcast Sales

Email: Sales@ThorFiber.com
Phone: 1(800)521-THOR (8467) Ext 1
FAX: 1(800)521-6384

Customer Service/ Support

Phone: 1-800 521-THOR(8467) Ext 2
Email: Support@ThorFiber.com