User's Manual

1: Introduction
APCD-LM048-1.3 5
any user to check the RF link quality to help align the EUM3006 and
troubleshoot the link. This avoids needing to know the IP address and
password of the modem.
Detailed specifications for the EUM3006 can be found on the WaveRider website.
1.3 EUM3006 - End-user Modem or Customer Premises
Equipment
The EUM3006 Integrated Outdoor Modem, shown in Figure 1, is a rugged outdoor wireless
modem that connects to the end-user’s computer through an Ethernet connection. It is
installed at the end-user’s premises and provides an interface to the customer’s computer or
local area network on one side and wireless access to the LMS4000 network on the other
The EUM3006, which acts as a network bridge, receives data from the CCU (Communication
Access Point Channel Unit = base station) over the 900 MHz radio link, and then forwards this
data to EUM3006 internal processes or to the end-user’s computer through the Ethernet port.
In the other direction, the EUM3006 forwards data received from the end-user’s computer over
the radio link to the CCU
1.3.1 Key Components
These key components of the customer-premises equipment are described on the following
pages:
• EUM3006 Integrated, High Gain, Active Diversity Antenna on page 5
• Ethernet Port on page 6
• Power over Ethernet (PoE) Injector on page 7
• PoE Lightning Arrestor on page 7
1.3.2 EUM3006 Integrated, High Gain, Active Diversity Antenna
The EUM3006 has its antenna integrated with the modem in one package, designed for the
rugged outdoor environment. The EUM3006 antenna is a high gain, active diversity antenna
that ensures that the EUM3006 output power is at the maximum allowed. The active diversity
feature selects the best signal from horizontal and vertical polarizations on a per packet
received basis. Active diversity improves performance in a multi-path fading environment by
selecting the alternate polarization when the other polarization signal fades significantly. This
effectively reduces the depth, frequency and duration of fades when compared to a non-active
or non-diversity antenna system.
Horizontal and vertical polarizations are relative to the earth. Since the EUM3006 can be
mounted in one of two orientations, we use the terms longitudinal axis and transverse axis to
refer to the axes of the modem. See Figure 2.