User's Manual

EE440 Specifications manual
1. Abstract
This manual provides specifications for the EE440 electronic shelf label (hereafter referred to as
“ESL”).
2. Overview
The EE440 is an E-ink based ESL with a 2.4GHz radio for data communication. This product
uses Direct Sequence Spread Spectrum RF technology that allows for an ultra-low power
consumption combined with a reduced sensitivity to background noise. That means less
interference by other radios that operate in the 2.4GHz band. The radio protocol that is used is
based on the IEEE 802.15.4 standard that specifies the physical layer and media access control
for low-rate wireless personal area networks. The protocol is entirely implemented, except for
some small changes that have all to do with the connection protocol to a base station. When the
base station is not available the EE440 switches to a non-802.15.4 standard to lower the power.
That is especially meaningful when the EE440 is not being used for a prolonged period of time
(e.g. during shipping)
The EE440 is intended to be operated in combination with a base station such as the EBS30
which can control a large number of EE440 and other types of ESL of the same family such as
EE201.
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