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ION-B User Manual
• a variable number of Remote Units (TFAx), whose function is feeding the antenna passive
network;
• a proper number of indoor antennas, suitable to provide radio coverage to the area.
ION-B is fully compatible with any type of indoor antennas;
• the optical cables required to connect the 19” subracks to the TFAx.
1.3 ION-B Features
The following lines report a brief summary of ION-B main features:
• multiband 2G, 2.5G and 3G – 802.11b WLAN compatible: ION-B is completely transparent
to any transmission protocol and modulation format, and it can distribute any 2G, 2.5G,
3G wireless standard. In addition, it allows to carry also the WLAN (802.11b/g) service
over the same infrastructure;
• modular confi guration for fl exible design: by properly setting some parameters like
the amount of RUs and the antenna locations, the ION-B architecture can follow the
environment specifi c features in order to obtain the most effective radio-coverage of the
indoor area. The modularity of the system allows easy modifi cations for future growth and
increasing traffi c;
• easy to install: the intelligent plug & play ION-B system includes an Automatic Gain
Control (AGC), that eliminates system gain variations regardless of optical loss. This avoids
the need for fi eld adjustments, thus reducing design, installation and optimization time.
• low-power consumption: establishing a “quasi line-of-sight propagation” towards all
mobile phones inside the area, ION-B works with low power levels. Low power levels
have two great advantages: 1) allow mobile phones to work at lower power levels, thus
limiting the radiated emissions and increasing their battery life; 2) allow a better control of
interference effects between adiacent cells.
• central supervision functions: all individual alarms of ION-B system are stored in an internal
fl ash memory, and available to both local and remote connections. Detailed alarm
information is provided by special software (i.e. by Supervision or Maintenance software
tools) running on a locally connected host, as well as any information about alarm status
and alarm history is available to remote connections via TCP/IP protocols, SNMP agent,
or HTTP servers. This alarm information is visible also by means of LEDs present on the front
panels of both the MU and the RUs;
• multiple-carriers system: there are no restrictions on the number of carriers that the ION-B
can convey. Obviously, the more carriers per service, the less power per carrier;
• remote power supply: in case mains cannot be used for the Remote Units, ION-B offers a
centralised power supply option, which distributes both a DC low-voltage (-48V) power
and the optical signals through a composite fi bre optic/copper cable;
• wide variety of RF passive devices: the connections between the DAS and the local
BTSs are able to be arranged so as to get the best fi t for the customers needs. ION-
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