ZTE Corporation R8872AS1900 Manuale Utente
ZXSDR R8872A Product Description
8
ZTE Confidential & Proprietary
Amplify, filter and convert A/D and D/A signal;
Convert between optical and electric signal;
Capture reference clock signal from baseband unit and provide clock signal to other
units;
Measure and report voltage standing wave ratio (VSWR);
Self-detect and report hardware failure alarm;
Detect and report over-heat alarm;
Provide communication interfaces, including,
Two CPRI interfaces
one DB15 port, for 2 dry contacts, one local debugging or AISG connection
through different kind of cables
Reset function.
2.2.2
DFL
The DFL has following functions:
Combine and isolate transmitted and received signals;
Filter the transmitted signal and received signal;
Provide DFL alarm monitor function.
2.2.3
PA
The PA has following functions:
Perform radio signal amplifying function;
Implement temperature report function;
Implement Low-Noise-Amplifier (LNA) function;