Nemal Fiber Optic Media Converter — CAVU-S8

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The Nemal CAVU-4K consists of camera fiber optic adapter (TX) and fiber optic base station (RX), designed for long-distance transmission of 4 individual 3G/HD-SDI signals from the camera side to the Base Station, Sony Remote control data, intercom, and tally. The system puts all of the signals needed for multi-camera 3G/HD-SDI production onto 2-SM fibers, terminated in ST connectors.


  • Designed and tested for use outdoors in harsh environments
  • SD, HD, 3G automatic input detection, supports 270Mbit / s – 1.48Gbit / s – 3Gbit / s rate, supports SMPTE-424M 3Gbps HD-SDI, SMPTE-292M HD-SDI, SMPTE-259M SDI serial digital video signals and DVB-ASI signals
  • Uncompressed transmission without delay; Negligible loss
  • More than 10KM transmission distance up to a maximum 80KM
  • Precision aluminum housing, lightweight and convenient, A-type with a flexible pinch
  • Supports Sony Remote control (CCA5)
  • Mic level input (with mute function) and amp functions (volume adjustment)
  • Tally output +12V or dry Contact Closure
  • Wide operating temperature range, low power consumption

Typical Applications:

  • Television studio, mobile studio, remote production
  • EFP Electronic Field Production, major sporting events and large outdoor events
  • ENG camera (outdoor photo camcorders) upgraded to a EFP camera


General index
Operating Temp-25°C to 55°C
Storage Temp-40°C to 85°C
Humidity0 ~ 95% (non-condensing)
Camera Optic Adaptor
Input powerDC 12~19V
Power consumption<10W
Net weight1kg (2,2lb)
Dimensions (A Mount)160mm x 100mm x 44mm
Optic Base Station
Input powerAC90~240V
Power consumption<10W
Net weight3kg
Dimensions19” 1 Rack Unit
Wavelength1310nm / 1550nm / CWDM
Output Power -6~-1dBm
Rx sensitivity<-18dBm
Transmission DistanceSM fiber 10+km, MM fiber 300m
Optical connectorDual ST
SDI input/output
Signal formatSMPTE 424M, SMPTE 292M, SMPTE 259M
Data rate270Mbit/s – 1.48Gbit/s – 3Gbit/s
Cable EqualizationAutomatic cable EQ (Belden 1694A/Nemal 1580 cable)

250m @ 270Mbit/s, 140m @ 1.5Gbit/s, 80m @ 3Gbit/s

SDI interfaceBNC 75 Ohm (4)
SDI Channels4 CH (camera to base )