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4280 SDI Optical Bidirectional Transceivers

4280 SDI Optical Bidirectional Transceivers

The 4280 SDI Optical Transceiver offers simultaneous independent SDI to Optical and Optical to SDI conversion, supporting SD, HD & 3G SDI, DVB/ASI 270Mbps

It is housed in an extremely compact and rugged aluminium case ideally suited to both studio and portable applications.

The unit requires an external power supply or a rack mounting frame. Please see MiniBlox Accessories.

Key features:


  • Supports data rates from 50Mbps to 3Gbps
  • Automatic Cable Equalisation
  • Multi-rate reclocking with automatic rate detection and automatic bypass for non SDI data rates
  • LEDs display power and SDI lock status
  • Wide input voltage range 6-12VDC
  • Locking DC jack
  • Optical input and output on female LC connectors
  • Provides reclocked loop-through SDI output
  • Optical transmit on 1310nm (1550nm and CWDM options available)
  • Optical receive on 1260-1620nm Wavelength
  • Use two 4280 units together for a complete bidirectional SDI-over-fibre system


Technical Specifications
Video Specification
Video input
Standards SMPTE 297M, SMPTE 259M, SMPTE 292, SMPTE 424M, DVB-ASI
Connector 75 Ohm BNC
Data rate 50Mbps – 3Gbps
Signal Level 800mVp-p ±10%
Return loss >15dB to 1.5GHz, >10dB 1.5GHz-3GHz
Cable equalisation 3G to 140m, HD to 200m, SD to 400m
(Bryant BD SD10, Belden 1694A or equivalent)
Compliance Class 1 FDA and IEC60825-1 Laser safety
Centre wavelength 1310nm ± 20nm @ 25ºC (1550nm and CWDM options available
TX Laser FP (DFB for CWDM Version)
Fibre type Singlemode
Optical Transmitter Power –2dBm typ.
Receiver Wavelength 1260-1620nm
Receiver Sensitivity –22dBm typ.
Receiver Photodiode Type PIN
Voltage 6-12VDC
Other Specifications
Indicators Power and SDI lock
Size (mm) 63.5mm x 84mm x 30mm plus connectors
Weight 145g
Temperature 5°C to 40°C
Humidity 80% max (non condensing)
Description      Each:
Price Qty
DTL 4280MiniBlox SDI 1310nm optical bidirectional transceiver£388.00
DTL 4280-2MiniBlox SDI 1550nm optical bidirectional transceiver£483.00
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