User's Manual

JUNI JF43-E1900/CFN03
CDMA FIBER FED REPEATER OPERATIONS MANUAL
Version 1.17 ⓒ J
uni America Inc. Page 9 of 88
1.3 Advantages
There are many advantages to deploying a FFR.
• Supports adjacent block interference protection which allows just one model of the
FFR to cover the entire PCS frequency range. The FFR is settable to allow a
combination of 85 different frequencies to be serviced. This advanced filtering
personality prevents interference from adjacent frequency blocks.
• Allows for versatile deployment architectures. Extra optical transceiver modules
can be added to the DHU to increase service coverage. A flexible RF splitter unit
can also be implemented to combine multiple RF ports supported by newer BTS.
• The slim and sleek appearance of the RU allows it to be installed and deployed in
difficult zoning areas.
• Its water and moisture resistant NEMA 4X structure make it reliable and durable.
• The FFR system is monitored and controlled from a central remote location by
making use of a CDMA wireless modem via the SNMP protocol.
• Operation and maintenance and repair is simple. The system provides alarms and
information on the repeater gain settings, output level control, HPA on/off, internal
temperature monitoring and problems concerning the optic module. The system is
designed to operate with a comprehensive network management system.
• The system uses only one optical fiber core for transmission and reception of
signals. To achieve this, WDM is implemented which enables multiple wave-
lengths (FWD: 1550nm, REV: 1510nm) to be simultaneously transmitted and
received through the one optical fiber core.