With a new series of optical satellite IF components, consisting of the optical transmitter OT 5 CWDM and the optical receivers OR 5 QT and OR 4 S, Polytron is expanding its range for optical transmission.
Polytron is expanding its program with new products that serve to distribute satellite and terrestrial signals in an optical network. In addition to classic high-frequency technology (HF) using coaxial cables, optical transmission technologies using fiber-optic cables are becoming increasingly popular. For this purpose, Polytron a new series consisting of the optical transmitter OT 5 CWDM and the receivers OR 5 QT and OR 4 S. The system uses the proven CWDM technology (Coarse Wavelength Division Multiplexing), in which a fixed wavelength is assigned to individual Sat IF elements and this is made available as a combined optical signal via multiplexing with other signals.
According to the manufacturer, the advantages of this system are that the signals processed in this way cannot interfere with one another due to the different wavelengths. In addition, the use of glass fibers results in a potential separation between transmitter and receiver and the low system attenuation enables long ranges to be achieved. Furthermore, no optical LNB is required, reception is via a Quattro LNB with a satellite IF output. The implementation and operation of the assemblies as well as an expansion or retrofitting of existing systems to optical systems can be easily realized. Terrestrial signals should just as easily be integrated and transmitted in the optical network.
The technical details of the new components
All components of the new optical Sat-IF series from Polytron are equipped with SC / APC connections for optical plug connections. This should allow preconfigured patch cables and passive optical distribution components to be installed quickly and easily, which means that there is a high degree of compatibility, even with the existing single-mode distribution structure. According to the manufacturer, the OT 5 CWDM optical transmitter converts HF signals in the frequency range from 47 to 862 and 950 to 2150 MHz into optical signals in the range from 1510 to 1570 nm for feeding into optical distribution networks. It has four SAT IF and one terrestrial input. Quattro or Quad LNBs can be connected.
The optical receivers are used to convert the optical signals in the range from 1510 to 1570 nm into RF signals. According to the manufacturer, the OR 5 QT model converts the incoming optical signal into four outputs with fixed satellite polarization levels and into a terrestrial output for connecting satellite IF multiswitches. The OR 4 S model, in turn, converts the incoming optical signal into four switchable universal satellite IF outputs for direct connection of standard satellite receivers or TV sets with integrated satellite receivers. All programs in the signal are available at each of the four outputs. The OPM-FS 300 splicer and the OME 100 and OME 200 optical measuring devices are available from Polytron as additional accessories or tools for creating optical distribution networks.
Source: DIGITAL FERNSEHEN by www.digitalfernsehen.de.
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