Andrew ION-B Series, Руководство пользователя

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11 MN024-010
1. Introducing ION-B
1.1 The Features
ION-B is an innovative platform designed in order to provide an effective and fl exible
coverage to a large variety of indoor scenarios.
Thanks to its high modularity, its low power consumption, and its full-transparency to protocols
and modulation formats, ION-B is the perfect plug&play solution to distribute any wireless
standard (including GSM, GPRS, EDGE, CDMA, W-CDMA, and WLAN IEEE 802.11b/g) to the in-
building environments requiring reliable and interference-free communications, as well as high
traffi c capacity and maximum fl exibility about future expansions.
These unique features make the ION-B platform suitable also for applications to critical areas
experiencing diffi culties in establishing and keeping phone calls, while its compact design
always guarantees a minimum aesthetic impact.
1.2 Brief Description of ION-B
ION-B is a Distributed Antenna System (DAS) based on the Radio-over-Fibre (RoF) technology,
and capable of carrying wireless mobile signals through the 800MHz - 2500MHz frequency
range regardless of their protocol and their modulation format.
The system has two basic components, a Master Unit and a Remote Unit. The Master Unit
is made of one or more subracks typically connected to the BTS (Base Tranceiver Station)
through either a repeater (RF interface) or a coaxial cable.
Each Remote Unit is connected with a dedicated pair of single-mode optical fi bres (one for
UL and one for DL) to the Master Unit. These optical fi bres work on 1310 nm wavelenght and
provide low losses and almost unlimited bandwidth, available for future system developments.
ION-B is a modular system whose basic components are:
• one Master Unit made of one or more subracks, each providing 12 module slots. Each
slot can host either an active or a RF passive device (chosen among the wide range of ION-B
options), in order to meet the planned design requirements;
BTS
TFLN
RF Interface
Remote
Unit
Figure 1:
ION-B system block diagram