Optical devices
The optical LNB OPM-LNB converts the received satellite signal into optical signals. Each SAT level is stacked one after another and is converted to the 950 MHz – 5.45 GHz frequency range. The newly created frequency band is then transmitted via an optical wavelength of 1310 nm
Optical devices
Satellite signal distribution via fibre optic cable
The distribution of satellite signals via fibre optic cables allows to distribute signals easily over very large distances with few losses.
With this system it is possible to build distribution networks with up to 256 optical terminal stations. So large distribution systems - if needed with more than 10000 subscribers - can be run.
The concept
The principle of satellite distribution over fibre is simple: an optical LNB converts the received signals into light waves right at the dish. The distribution is performed over the pre-assembled fibre optic cables.
The terminal converters convert the light wave signal back to its original satellite polarizations.
Optical LNB
Optical Converter
Optical Splitter
Optical Transmitter
Optical Nodes
Optical LNB
LNB with optical output OPM-LNB (Data Sheet)
The optical LNB OPM-LNB converts the received satellite signal into optical signals. Each SAT level is stacked one after another and is converted to the 950 MHz - 5.45 GHz frequency range. The newly created frequency band is then transmitted via an optical wavelength of 1310 nm.
The optical signal distribution occurs over a single single-mode fibre optic cable.
The LNB is powered via coax cable by the external 12 V power supply which has an F-connector.
OPM-LNB 100 Kit (Data Sheet)
If more than 64 optical terminal units are needed, the OPM-LNB 100 kit will be used. In this case, the HF output signal of the LNB 100 will be split by a four way splitter OPM-AS32 to up to four electrical / optical converters OPM-CON.
Concurrently a terrestrial signal can be fed to the converter.
The converter features two optical outputs with 7 dBm performance, enabling 8 optical distribution networks with 256 optical termination units in total.
Optical Converter
OPM-QTS optical converter QUATTRO (Data Sheet)
The converter OPM-QTS is a terminal station of the fibre-optic network which converts the light-wave signal back into the original satellite signal with terrestrial signal.
The OPM-QTS quattro converter gives out the four sat levels: HH, VH, HL, VL and a terrestrial signal, which allows for the direct connection to a multiswitch system.
The converter can be powered by the connected receivers, as well as by the multiwitch system. Alternatively, a 20 V DC power supply can assure the necessary power.
PM-QMS optical converter QUAD (Data Sheet)
The converter OPM-QMS is a terminal station of the fibre-optic network which converts the light-wave signal back into the original satellite signal.
Four receivers can be connected to the quad converter OPM-QMS.
The converter is powered by the connected receivers. Alternatively, a 20 V DC power supply can assure the necessary power.
Optical Splitter
Optical splitters OSF 200, OSF 300, OSF 400, OSF 800 (Data Sheet)
The splitters OSF split an optical signal to 2, 3, 4 or 8 outputs. Each connection is equipped with a FC/PC socket. The incoming and outgoing optical cables can be connected directly to the splitter avoiding faults and needless couplings.
OPM-AS 04 active splitter (Data Sheet)
OPM-AS 04 is an active 4-way splitter distributing the incoming HF signals of the OPM-LNB 100 (950-5450 MHz) up to four OPM-CON. The attenuation is 0 dB.
All connections are N-type.
To connect the LNB and the OPM-CON the N-type interconnection cables OPM HFN 03 or OPM HFN 10 are used.
At all four inputs the DC power pass for the LNB power supply is given.
Optical Transmitter (Data Sheet)
A POLYTRON headend receives e.g. terrestrial signals, SAT signals or HDMI signals and converts the signals to DVB-C or DVB-T.
The optical transmitter OT ... DFB converts the electrical into optical signals, which can be distributed via fibre optic cables.
The optical transmitters operate with a distributed feedback laser. The senders’ control is managed with buttons and a LC display in front of the device. The output power is 4, 6, 8 resp. 20 mW.
ON 1000, ON 1065 - Optical Nodes (Data Sheet)
The optical nodes ON 1065 with built-in 65 MHz return path and ON 1000 without return path combine the superior proven technologies of both a POLYTRON RF amplifier and optical devices.
The two ways optical node delivers RF-signals (digital or analog) as well as high-speed data services over advanced hybrid fiber / coax (HFC) network. With the modular design the POLYTRON nodes can provide the full complement of functions required by advanced networks.
