User's Manual

User Manual v1.0
1.4.2 Internal sub-units
The following sections describe the system sub-units.
1.4.2.1 Head end: Radio Interface Frames (IHU/HEU) (Point of Interface)
Radio Interface frames are modular chassis used for interface between the base stations and the
Everon™ 6000. A system may be comprised of two types of Chassis: IHU (Integrated Head-end Unit) and
HEU (Head End Unit). The IHU can interface up to 8 RF duplexed ports (or 16 UL/DL simplex ports) and
can be expanded by an HEU radio interface frame which provides interface capabilities for additional 12
RF duplexed ports (or 24 UL/DL simplex ports). The following modules are used with the radio interface
frames:
x RIM (Radio Interface Module) - provides an interface and signal conditioning to signals coupled between
the signal source RF antenna ports and the Everon™ 6000 (uplink and downlink)
x DCM (Digital Conversion Module) – For IHU only! Provides RF to CPRI (Downlink) and CPRI to RF (Uplink)
conversion, where the well-known CPRI (Common Public Radio Interface) standard is used for
representing the RF signals. Each DCM may convert signals capturing up to 190 MHz aggregated
bandwidth.
x RIX (Radio Interface Expander) - combines downlink signals of the HEU and IHU RIMS and provides the
combined signals to the OIX, splits uplink signals arriving from the OIX to the HEU and IHU RIMs.
x OIX (Optical Interface Expander) - combines downlink signals arriving from the HEU RIX and the IHU RIX
and splits the uplink signal for the HEU RIX and the IHU RIX uplink ports.
x PSM (Power Supply Module) (DC or AC) - provides power to the radio interface frame
x dHCM (Head-End Control Module) is a "master" frame controller
x ACM (Auxiliary Control Module) is a "slave" frame controller controlled by the dHCM
1.4.2.2 Digital Remote Unit (DRU)
The DRU - Digital Routing Unit is the Everon™ 6000 central Hub and Distribution element. The DRU
interfaces between the DCM modules and the IHU Radio Interface Frames, allowing to receive the
operators service signals in CPRI format, and to route these signals to the remote units. The DRU
supports all Corning digital remote antenna units’ flavours, for all services, power levels and antenna
configurations (SISO or MIMO). Each DRU includes 4 F/O CPRI ports connected to the DCMs and 32 F/O
IHU
HEU