Overview
 
 The RRU5301 is a multimode remote radio unit. With the software-defined radio (SDR) technology, the RRU5301 can work in multiple modes through software configuration. It indicated by the "02311PFF" part number, which is a Huawei standard. The PFF designation specifies the unit supports Remote Electrical Tilt (RET) antennas and provides a 12V, 2.3A feeding voltage to them. 
 

   Key Specifications of the RRU5301/PFF (specifically, the Huawei eLTE RRU5301 for 2600MHz):            - Model: RRU5301
  - Part Number: 02311PFF
  - Technology: LTE FDD, eLTE
  - Power: 4x40W
  - Frequency Band: 2600 MHz
  - Antenna Interface: Supports RET antennas, providing 12V @ 2.3A feeding voltage to them.
  - Dimensions (H x W x D): 400 mm x 300 mm x 150 mm (without housing).
  - Weight: 22 kg (without housing).
  
       General Functions of a RRU5301:            - Receives downlink baseband data from the Baseband Unit (BBU).
  - Sends uplink baseband data to the BBU.
  - Up-converts RF signals to the transmit (TX) band.
  - Filters RX and TX signals, allowing them to share the same antenna channel.
  
      