OPU-1
UNIVERSAL POWER-LINE CARRIER SYSTEM TYPE OPU-1
GENERAL DESCRIPTION - Rev 7 (May 2019)
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FDPU
DIGITAL TRANSIT FILTER
It is used to select a specific band and to carry out the two-way transit towards
other communication channels.
It includes a transformer-balanced input and output with programmable level.
The cutoff frequency is selected by means of jumpers.
Filters with other cutoff frequencies can be supplied on request.
EYPU
INPUT/OUTPUT COMBINER
The EYPU module has four inputs and four outputs that are all decoupled by
transformer, and two inputs and two outputs for signals coming from the
low-frequency buses of each of the analog channels of the OPU-1 terminal. It
is therefore possible, by programming the module, to effect any combination in
the connection of six inputs and four outputs or of four inputs and six outputs.
As it is not possible to connect the AF reception and transmission buses of the
OPU-1 terminal to each other, the combination of six inputs and six outputs is
not permitted.
TPSU
6 s.u. extension card.
