40 MN.00356.E - 003
7.2 GENERAL
ALFOplus2 radio system is made up of an outdoor unit, housed a metallic shield.
Compliance to electromagnetic compatibility is guaranteed through the following precautionary measures:
• during the design phase
- use of protection circuits against lightning by means of gas dischargers
- use of filters on the power supply input circuits against noise propagating on the power supply
wires
• during the installation phase
- use of shielded cables
- use of ground connections.
The installation phases of the whole system are described in the following paragraphs and it must be done
only by service person suitably trained.
Remember that the whole radio link can work only if ODUs chosen for local and remote side have equal
sub-band and different SSB (H and L).
7.3 ELECTRICAL WIRING
The electrical wiring must be done using appropriate cables thus assuring the equipment responds to the
electromagnetic compatibility standards.
The cable terminates to flying connectors which have to be connected to the corresponding connectors on
the equipment front.
Position and pin-out of the equipment connectors are available in this section.
7.4 CONNECTIONS TO THE SUPPLY MAINS
During the final installation, protect the ALFOplus2 by a magneto-thermal switch (not supplied with the
equipment), whose characteristics must comply with the laws in force in one’s country.
The disconnection from the supply mains is made disconnecting the 48V connector M12 5Pin from the ODU
or disconnecting the LAN PoE cable.
The typical magneto thermal switch has characteristics at least 48 Vdc @12A with overcurrent relay class
“C” or “K” tripping curve.
Seal the M12 connector when it isn’t used, in order to avoid the removal of the cover without tools.
The operating temperature of power cable must be at least 60°C.
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