User Manual
Product information and planning
9500 MPR Rel. 3.1
3DB18809AAAA Issue 154/980
2.1.6 MPT-HC
MPT-HC is a Microwave Equipment capable of transporting the Ethernet traffic over an RF radio channel.
MPT-HC is a microprocessor controlled equipment that interfaces the MSS with the antenna.
The input interface is a standard Giga Ethernet interface (electrical or optical).
The Ethernet traffic is transmitted over the radio channel according to the configured QoS and to the
scheduler algorithms.
Transmitter circuits in the MPT-HC consist of Ethernet input interface, modulator, local oscillator, upcon-
verter/mixer, power amplifier, and diplexer.
Receiver circuits consist of diplexer, low-noise amplifier, local oscillator, downconverter/mixer, automatic
gain control, demodulator and Ethernet output interface.
The microprocessor manages the frequency, transmit power alarming, and performance monitoring.
The power is provided by -48 Vdc from the MSS to the MPT-HC DC-DC converter through a dedicated
power supply cable.
By using the Power Extractor (refer to par. 2.1.9) the MPT-HC can be connected to the MSS by using only
one cable carrying Ethernet traffic and power supply.
The MPT-HC is frequency dependent.
Figure 13. MPT-HC (11-38 GHz on the left side; 6 GHz on the right side)
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