User's Manual

2. Introduction
Page 14
7.Manual MF0200A0A ION-U_H_17P2_uc_19-July-13.docx
User
’
s Manual for ION
®
U
2. Introduction
2.1. Purpose
Mobile telephone and public safety systems transmit signals in two directions
between base transceiver station (BTS) and mobile stations (MS) within the signal
coverage area to carry voice and data traffic.
If weak signal transmissions occur within the coverage area because of indoor
applications, topological conditions or distance from the transmitter, extension of the
transmission range can be achieved by means of an optical distributed antenna
system (DAS).
Office buildings, sports arenas, college campuses, industrial parks, and other areas
of high demand require the specialized capacity boost that an optical DAS can
provide to meet increasing customer demands for voice and data.
An optical DAS contains optical Master Units and a sufficient number of Remote
Units to provide the necessary coverage. The number of the Remote Units depends
on the coverage requirements of the DAS. The Remote Units are connected to the
Master Unit with optical links.
The Master Unit is the connection to the Base Transceiver Stations. The
configuration of a Master Unit depends on the number of the Remote Units and the
frequency range.
RF signals are transported to and from the remote units via optical fibers.
2.2. ION-U High Power Remote Units
The ION-U is an optical fiber based DAS system that efficiently takes the outputs of
multiple Base Transceiver Stations (BTS) sectors and converts those RF signals to
optical to send them over fiber optic cables to remote units to provide coverage in
indoor and outdoor locations. The system supports both low power and high power
remotes units and SISO and MIMO operation.
The ION-U H 17P2 is a multi-band, multi-operator high power remote unit optimized
for CDMA2000, EV-DO, WCDMA, HSDPA, and OFDM modulation in the 1700 MHz
band. It is provisioned for future modulation and frequency bands. These Remote
Units feature independent downlink and uplink gain adjustments and an integrated
channel power detector for in-band spectrum and PIM analysis and end-to-end auto
leveling.
The unit utilizes a single fiber to support multiple bands in both the uplink and
downlink directions. WDM (Wave Division Multiplex) filters are integrated in the
optical modules. For the UL, a wavelength within 1546 nm – 1550 nm is used. For
the DL, a wavelength of 1310 ±10 nm is used. The maximum output power for the UL
and DL is 6.7 mW.