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Fiber Optic Video Converter ULTIMODE V-208D
(WDM, 8 x video, 1 x data)
Code: L2821
Withdrawn from the offer
Fiber optic video converter ULTIMODE V-208D allows to transmit eight video channels and telemetry data channel (RS-485) via one optic fiber up to 20 km.
Fiber Optic Video Converter ULTIMODE V-208D<br />(WDM, 8 x video, 1 x data)
View of the V-208D converter set
Fiber Optic Video Converter ULTIMODE V-208D<br />(WDM, 8 x video, 1 x data)
Front view
Fiber Optic Video Converter ULTIMODE V-208D<br />(WDM, 8 x video, 1 x data)
Rear view
Distinguishing features:
  • 8 video channels
  • 1 one-way RS-485 data channel
  • maximum transmission distance 20 km
  • transmission via one single-mode fiber (WDM)
  • LED indicators showing operating status
  • the set contains video transmitter and video receiver, and 2 power supplies
  • very easy installation
The ULTIMODE V-208D video converter uses the latest optical technology. It ensures transmission via single optical fiber of 8 video channels and 1 one-way RS-485 data channel (in opposite direction - from the video receiver to the video transmitter). It is possible due to the use of wavelength-division multiplexing technology (WDM) - different wavelengths of laser light to carry different signals, over one strand of fiber. It significantly lowers installation costs. The L2821 set contains 2 modules - video transmitter marked "T" and video receiver marked "R" - and 2 power supplies (output: 12VDC/3A).
One of the devices transmits optical signal in the III transmission window (1550 nm), whereas the second uses the II window (1310 nm). Sensitivity of the receiver and output power of the transmitter is adapted to transmit information up to 20 km. In the case of shorter distances (up to 2 km), it is required to use additional 2dB attenuators by the receivers. They will protect them against "burning". Durable laser diode with Fabry-Perot resonator ensures the mean-time-between-failure (MTBF) at least of 100000 hours (more than 11 years).
The set is compatible with NTSC/PAL/SECAM systems and ensures high quality transmission of live video over distances up to 20 km, much longer than those offered by standard devices. The possibility of sending control signal (RS-485) from the video receiver to the video transmitter allows to use PTZ cameras.
Optical port
 Connector: SC
 Max range: 20 km
 Wavelength: 1310/1550 nm
 Video transmitter: Rx sensitivity:-35dB ... -3dB
 Tx power:-8dB ... -3dB
 Video receiver: Rx sensitivity:-22dB ... -3dB
 Tx power (data):-15dB ... -5dB
Video Number of channels:


 Connectors: BNC
 Level/impedance: 1 Vpp / 75 Ω
 Bandwidth: 5 ... 7.5 MHz
 DG: < 1%
 DP: < 1%
 SNR: > 70 dB
Data Number of channels: 1
 Bandwidth: 0 – 400 kb/s
 BER: < 10-9
 Interface: RS-485
Power and Environment
 Operating temperature range: -10 ... 75 oC
 Operating humidity: 0 – 95 % (no condensation)
 Power: 5VDC/3A
NOTICE!! It is not allowed to look directly at the fiber port when the device is plugged. The radiation invisible for the human eye can damage the retina!
Why to choose fiber optics:
  • possibility of sending signal over long distances (low attenuation of optical fibers - e.g. for the wavelength of 1550 nm the attenuation is about 0.2 dB per kilometer, which means that the signal can be sent at a distance of 200 km - without regeneration)
  • high-volume information transfer via single fiber
  • resistance to electromagnetic interference
  • resistance to weather conditions (humidity, electrostatic discharges and others)
  • no tapping possibility
  • low weight and small dimensions
ULTIMODE video converters are widely used for the transmission of CCTV signals over long distances and in areas exposed to harsh weather conditions. Optical fibers provide full electrical insulation and resistance to electromagnetic interference. Below there is a sample application of ULTIMODE converters.
Vandal-proof Dome Camera: V-CAM 515 (550 TVL, Sony Super HAD II CCD , 0.01 lx, 4mm, IR)Day/Night Speed Dome Camera TPOWER-S2Network DVR: ULTIMAX-204 (H.264, 4 channels)Fiber Optic Video Converter ULTIMODE V-204D (WDM, 4x video, 1x data)CCTV 19System Control Unit: KB-2000-3A - CLEARANCE SALE!
Example application of ULTIMODE video converter

Video converters of ULTIMODE series can cooperate with all CCTV cameras. They are designed for indoor operation. Our offer also includes video converters with 1 video input and data channel (L2121), with 4 video inputs and data channel (L2421), and a model with audio and alarm channels (L2423).
List of parameters of ULTIMODE media converters from V-20x... series
Optical connectorsSCSCSCSC
Max range [km]20202020
Wavelength [nm]1310/15501310/15501310/15501310/1550
Number of video channels14
Video connectorsBNCBNCBNCBNC
TV systemsNTSC/PAL
Number of data channels1
Data interfaceRS-485
Throughputup to 400 kb/sup to 400 kb/sup to 400 kb/sup to 400 kb/s
Number of audio channels-
Number of alarm channels-
Power 5VDC/2A5VDC/3A5VDC/3A5VDC/3A

Withdrawn from the offer
Fiber Optic Video Converter ULTIMODE V-208D
(WDM, 8 x video, 1 x data)
Code: L2821