ZTE Corporation R8881S8500 Manuel D’Utilisation
ZXSDR R8881 Product Description
8
ZTE Confidential & Proprietary
Code
Function
DFL
Consists of a duplexer, filter and their own low-noise amplifier
subsystems. It can receive diversities.
PWR
Provides EMC protection for the power interface, monitoring
interface, and the AISG interface.
PIB
Provides lightning protection for the AISG, RS485 and dry
contacts
2.2.1
Transceiver (RTR)
Optical interface processing function
Supports RRU cascading.
Exchanges IQ data with the baseband resource pool.
Implements message interaction such as management, maintenance and
signaling.
Clock processing function
Recovers clock for data on the optical interface to generate reference clock
source.
Generates work clock based on the local reference clock of high-stability clock
phase locked.
Downlink processing function
Format conversion for downlink output IQ data
Downlink power calibration
Downlink peak clipping
Pre-distortion processing for downlink digits
Downlink single transfer channel
TCPW detection