Zte ZXC10 BTSB I1, Руководство по установке

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Chapter 12 Board Installation
12-5
the signals to PA for power amplification.
Process reverse link signals: Input TRX_RX0/1 for the main/diversity RF signals from
the RFE-LNA through the RSM switch for RF filtering, RF amplification, RF analog
down-conversion, intermediate frequency amplification, intermediate frequency SAW
filtering, reverse attenuation control, Automatic Gain Control (AGC) (when needed),
and direct intermediate sampling (A/D); and then process by the reverse digital
intermediate frequency RSP for digital quadrature modulation (down-conversion),
digital splitting, digital filtering, digital sampling of the baseband signal; and output the
reverse to the corresponding baseband time slot through baseband filter FIR, forward
Digital AGC (DAGC) and reverse selection.
12.3 Cabinet Front Boards
12.3.1 Board Overview
12.3.1.1 Board Structure and Diagram
The mechanical structure of a common BTSB board is shown in Fig. 12.3-1.
The picture of a common BTSB board is shown in Fig. 12.3-2.
Fig. 12.3-1 Board Mechanical Structure