ZTE Corporation R8881S8500 Manuale Utente
ZXSDR R8881 Product Description
ZTE Confidential & Proprietary
7
2
Product Architecture
2.1
Physical Structure
R8881 is the SDR based multi-carrier remote RF unit (RRU). It has one transmitter.
R8881 80W is 370mm*320mm*170mm (H*W*D) in dimension and 18 kg in weight.
2.2
Hardware Structure
R8881 consists of transceiver (RTR), power amplifier (PA), duplexer (DFL), power (PWR)
and lightning protection module (PIB), as introduced below. The hardware structure of
R8881 is shown below.
Figure 2-1 R8881 System Structure
Table 2-1 R8881 Modules
Code
Function
RTR
Receives and transmits the signals of panel interfaces, digital
intermediate frequency and RF, and controls clock, power and
power amplification.
PA
Amplifies downlink RF signals and outputs them to the duplexer.
PWR
AC/DC in
Rx in Rx out ANT1 ANT2
AISG
RS485/LMT
Dry Contact
DFL
OPT1
OPT2
OPT2
PIB
RTR
PA
R8881