User's Manual

User’s Manual for ION-B Systems
Page 10
Manual TFAH-
ES70_80_50.doc
2.5. THE ION-B REMOTE UNIT AND ITS RELEVANT ACCESSORIES
Case A Remote Unit Case B Remote Unit
Case R2 Remote Unit Case-R2E Remote Unit
Case-R4E Remote Unit Case-U Remote Unit
The Remote Unit (TFAx) is a device which provides optical-to-electrical downlink
conversion and electrical-to-optical uplink conversion, thus allowing a bidirectional
transmission of signals between the Master Unit and the remote antennas. It is
available in 3 different power configurations (Low/Medium/High), housed by 5
different architectures (Case A, Case B, Case R2, Case R2E, Case R4E, and Case
U), so as to fulfill different coverage and band requirements.
In downlink, each TFAx receives an optical signal from the Master Unit, performs an
optical-to-RF conversion, and transmits the resulting signal to the antenna ports.
In uplink, it receives an RF signal from the remote antennas, provides an RF-to optical
conversion, and conveys the converted signal to the Master Unit through optical fibres.