Nortel BTR 2400, Руководство по установке

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1-2 BTR 2400 Release 1.1
411-1333-200 Preliminary July 1998
Figure 1-1
BTR 2400 Block Diagram
How the BTR 2400 Works
This section provides an overview of the theory of operation for the BTR
2400 outdoor transceiver.
Its installation on a pole or building enhances transmitting and receiving
capabilities by avoiding the need for long expensive waveguide runs. This
technique minimizes the power loss from waveguide attenuation, which
results in a highly efficient, compact and cost-effective installation.
The high-stability reference oscillator ensures that the transmitter and
receiver remain on frequency over a wide operating range, which results in a
highly efficient, compact and cost-effective installation.
The radio uses a common input cable to carry the 60 VAC or 48 VDC and
transmit intermediate frequencies (IFs). The power supply and the IF signals
are separated by the diplexer in the radio. The radio uses a common dual pole
antenna for both the transmit and receive microwave signals.
Antenna
Diplexer/PS
P. Amp
LNA
RX Filter
TX Filter
IF Output
IF/PS Input
PLO
15 VDC
Mixer
Mixer
IF AMP
Remote Monitor
To RSM 9016
IF Test Port
LO Test Port