Operating Manual

PRIVATE AND CONFIDENTIAL © 2021 FRTEK CO., LTD.
19
39GHz_L 5G Wireless Optical DAS Operating Manual
3.2 MDU Configuration
The MDU is an interface unit for DU communication and interlink, and designed to be installed on
a 19 inch rack. MDU is connected with 2 coaxial cables(SISO, MIMO), the MPSU and MHU are
connected with RF cable/harness.
The MDU sends DC 37V voltage supplied from the MPSU to the DU as Bias-T, and sends the
received IF signal from the MHU to the DU, or sends the received IF signal from the DU to the MHU.
Also, sync module is configured within the MDU, and extracts sync signal from the signal received
from the DU and sends to each unit.
Figure 3. MDU Configuration.