Software Subsystem - Zte ZXSDR R8882 Product Description

ZXSDR R8882 Product Description
l Processes clock signals.
l
Provides LED indication.
l
Provides external monitoring interfaces.
l
Supports local or remote monitoring.
PAD
l
Amplifies downlink radio signals received from the TRM, and outputs the amplified
signals to the FLD.
l
Amplifies four signals received from the FLD through the LNA, and then sends the
amplified signals to the TRM.
l Provides a pre-distortion feedback interface for the TRM.
l
Provides an interface to the TRM for Voltage Standing Wave Ratio (VSWR) detection
(forward power detection).
l
Supports separate switch-off.
l
Supports inner-module temperature detection.
FLD
l
Transmits and receives uplink and downlink signals in duplex mode.
l
Suppresses spurious emission on the downlink to get acceptable out-band Tx
spurious emission required by the system and related protocol.
l Suppresses interference signals on the uplink to achieve a satisfied noise coefficient.
EPB
l
Provides lightning protection for -48 V power supply.
l
Provides -48 V power filter.
l
Protects AISG signals (AISG power, half-duplex 485 signal).
l
Performs dry contact protection.
l
Protects the RS485 monitoring signals.
l
Provides adaptation for external MON interface, AISG interface, and power interface.

2.2 Software Subsystem

Figure 2-2
SJ-20150104112914-001|2015-01-04 (R1.0)
shows the software subsystem of the ZXSDR R8882.
2-2
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