Fracarro OPT-TX-DT Operations Instructions download pdf (Page 12)

English

OPTICAL INPUT: SC-APC input connector for the optical receiver. Used for the ﬁbre link for the

satellite polarisation and TV signals.

TV+SAT OUT: 4 F connectors for mixed TV+SAT outputs (87 - 862MHz, 950 - 2150MHz)

Aerial system earth connection (according to EN60728-11 standard)

POWER ON LED: On (green) to show the product is turned on.

Aerial system earth connection (according to EN60728-11 standard).

System Functions:

The headend system in a ﬁbre optic distribution network uses traditional receptive devices, i.e.

aerials, dishes and traditional LNB’s and any signal equalisation and ampliﬁcation units.

TV and SAT signals are sent to an OPT-TX DT optical transmitter, which converts the electrical

signals into luminous signals, therefore enabling the distribution via a ﬁbre optic infrastructure

over long distances.

Like traditional systems, each time this signal has to be split over a number of lines, a device called

an optical divider or optical splitter (VOV or VOT) is used this splits the signal into a number of

optical transport lines without any fall in quality even with a calculated attenuation.

Once the optical signal is in the vicinity of the unit to be served, it is reconverted into a traditional

signal by the OPT-RX DT optical receiver which on output generates the RF signals provided to the

end user by means of traditional components (coaxial cables and ﬁltered outlet sockets).

3. PRODUCT INSTALLATION

ATTENTION: A direct optical connection cannot be made between the OPT-TX DT

and OPT-RX DT. The connection can only be made using optical line attenuators as the overall

input power to the OPT-RX DT optical receiver must not exceed -7dBm.

Check the optical level of the signal on the ﬁbre using an optical light meter

before connecting it to the OPT-RX DT receiver.

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TV + SAT

output

Optical

Input

Power on led

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Fracarro OPT-TX-DT Operations Instructions Page 12