Operating Manual

PRIVATE AND CONFIDENTIAL © 2019 FRTEK CO., LTD.
22
INOVA DAS Operating Manual
System Configuration
3.1 ERU Figure and Configuration
ERU is a structure that can be used in-building, enclosure is configured as ceiling fixed type. ERU is
configured with ERPSU, ERDTU, ERCPU, 4 ERFUs (ERU RF unit) and can support up to 6 frequency bands.
ERU functions can be explained as the following.
- Converts Ethernet signal to RF signal, amplifies and services through antenna. (Downlink)
- Converts RF signal to Ethernet signal, transmits to upper equipment. (Uplink)
- 700MHz, 850MHz, 1.9GHz, 2.1GHz, 2.3GHz, 2.5GHz or 2.6GHz service support.
- Receives power supply from EHUB through Cat.7 cable. (No separate PSU)
- Delay control function through Time Advance function.
- 1Gbps Ethernet port implementation for various use.
Below picture shows the ERU figure.
Figure 3. ERU Configuration