User's Manual

Unit Descriptions - RF Path
P/N 709C011801
Page 29
2 Unit Descriptions - R F P ath
This chapter provides detailed descriptions of the ONE™ solution components. The descriptions are organized according to RF
and Digital path headend and remote end components. This includes port and LED interface descriptions.
2.1 RF Path - Headend Components
ONE™ RF Path coverage solution includes the following headend elements:
• HEU – Headend Unit
• OIU – Optical Interface Unit
Figure 2-1. RF Path Headend Components
2.1.1 HEU (Headend Unit)
The HEU performs the following main functions:
• Conditions (up to 12) RF sources to a level required for feeding to the Optical Interface Unit (OIM).
• Enables the configuration of up to three sectors consisting of groups of RF services.
• Provides single source control and management of the ONE™ solution RF path.
Each HEU supports up to 12 services. For additional services or density, two or more HEU units can be cascaded in a
Master/Slave configuration that is managed from the Master HEU. For HEU installation procedure, see section Installation –
RF Path Elements (on page 45).