13
2. Description
The Polytron optical SAT IF series consists of an optical transmitter OT 5 CWDM and optical receivers OR 5 QT and
OR 4 S and is used to distribute satellite and terrestrial signals via an optical network.
The optical transmitter
OT 5 CWDM
is used to receive signals in the range of 47 - 2150 MHz and provide them as an
optical signal in the range of 1510 - 1570 nm, which can be fed into an optical distribution network.
The optical receivers are used to convert the received optical signal into an RF signal.
The
OR 5 QT
optical receiver converts the incoming optical signal into four outputs with fixed SAT polarizations and
a terrestrial output for connecting multi switch devices.
The
OR 4 S
optical receiver converts the incoming optical signal into four switchable universal outputs for direct
connection of receivers or TV sets.
The subscribers can receive all programs on the transponders with a standard DVB-S/S2 Receiver or TV set with
integrated DVB-S/S2 tuner. It is not relevant whether the individual programs are broadcast in HDTV, as Pay-TV or
as free-to-air signals.
Accessory - external power supply
The devices are equipped with an external power supply unit.
3. Mounting
Firstly, please read the mounting and safety instructions in section 1. The installation of the receiving system must
be done in accordance with the standard IEC 60728-11. That ensures the safety of personnel and prevents
equipment damage by lightning or other sources of overvoltage. The transmitter must be mounted vertically on a
non-flammable wall with the SAT input sockets facing up and the receivers with the SAT output sockets from bottom.
Leave enough space for the connection of the optical cables in order to ensure the minimum bending radius of 30
mm. Steel screws are required for fastening. The screws are not included in delivery. The devices must have at least
15 cm clearance from the top, front and bottom after installation. The installation slots should be not covered by
objects. Otherwise, ventilation of the device will be impaired and may cause damage. Connect all necessary RF
cables with the appropriate inputs and/or outputs. To do this, remove the protective caps from the optical
connections on the devices and on the cable. Do not connect the power supplies of the transmitter or receivers to
the mains until all cables are fully connected to the devices.
Attention
The optical transmitter must not be connected directly to the optical receivers, otherwise the input
power will be exceeded and the device will be damaged! The input power must be adjusted with optical
attenuators according to the information in the technical specification.
