User's Manual

ALFOplus 24GHz (North America) - Release 01.05.0x - MN.00395.E - 004 15
5 SYSTEM PRESENTATION
5.1 GENERAL
ALFOplus is a full-outdoor and full IP digital radio system for point-to-point applications, used for high ca-
pacity Ethernet transport (500 Mbps). The frequency range is from 6 GHz up to 42 GHz with hitless adap-
tive code modulation (from 4QAM up to 1024QAM).
ALFOplus radio equipment can work in two main modes:
• Fixed modulation: in this mode the system works with a fixed modulation and FEC profile, selectable
by software. The modulation and the error code do not change during the time.
• Adaptive modulation: in this mode the system can dynamically change its modulation and FEC be-
tween a minimum and maximum ACM profiles that can be selected by software. The ACM profile is
instantaneously decided by the equipment depending on the propagation conditions.
ALFOplus consists of a lightweight, compact, weather-proof box containing transceiver, modem, baseband
unit, line interface and lightning protection.
There are two available versions for ALFOplus: Gigabit Electrical (GE) and Gigabit Optical (GO). This doc-
ument provides a general overview of ALFOplus (Access Link Full Outdoor) radio equipment.
ALFOplus must be used in RAL areas (Restricted Access Location) where an equipotent bonding has been
applied. The ODU unit has a supplementary specific connector for a permanent connection to grounding
point intended to be installed by technical staff only.
5.2 APPLICATIONS
ALFOplus is the ideal solution in urban environments for all carrier-class applications in which the typical
requirements are Ethernet connections:
• full IP radio, providing the foundation for a leading edge network
• fully integrable with 3G, 4G, LTE nodes and backhaul
• ideal for a fast and flexible evolution towards full IP network
• complementary solutions for fiber deploy
• last mile fiber extension for business customers
• ISP high capacity and performance, for LAN-to-LAN connections
• emergency wireless links
• zero footprint applications
ALFOplus doesn’t need any indoor unit and the power supply can be provided directly by POE through the
data cable or through a dedicated auxiliary port.
Radio link system configuration:
• 1+0 (unprotected, one ODU only)
Following two versions of ALFOplus are available:
• Electrical Gigabit Version