User's Manual

Chapter 1 - System Description
1.3 Subscriber Unit
The Subscriber Unit (SU) installed at locations that require service, enables the
customer data connection to the Access Unit. The Subscriber Unit provides an
efficient platform for high speed Internet and Intranet
services, supporting single or multiple end users. The
use of packet switching technology provides the user
with a connection to the network that is always on,
enabling immediate access to services.
The Subscriber Unit comprise a desktop or wall-
mountable Indoor Unit (IDU) and an outdoor unit that
contains the processing and radio modules. Several ODU types are available to
support different requirements, as detailed in Table 1-2:
Table 1-2: Subscriber Unit ODU Types
SU Type Antenna Description
SU-A-ODU Vertically polarized high-gain flat antenna integrated on the front panel
SU-E-ODU A connection to an external antenna
The Subscriber Unit supports a gross rate of up to 27 Mbps and can bridge a full
LAN.
The IDU provides the interface to the user’s equipment and is powered from the
110/220 VAC mains. The customer's data equipment is connected via a standard
IEEE 802.3 Ethernet 10/100BaseT (RJ 45) interface. The indoor unit is
connected to the outdoor unit via a Category 5E Ethernet cable. This cable
carries Ethernet traffic between the indoor and the outdoor units, and also
transfers power (54 VDC) and control from the indoor unit to the outdoor unit.
BreezeACCESS 4900 System Manual
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