User's Manual

CHAPTER 1
Introduction
8
provides the telemetry gateway with at least 24 hours of operation
without mains power.
The A440 Wireless Modem is a low-power, narrow-band data trans-
ceiver operating in the 70-cm band. It implements Adcon’s low-
speed radio protocol and is therefore compatible with all Adcon
RTUs. In addition the A440 modem supports a high-speed wireless
protocol that will be used by future Adcon devices.
The A440 has an 8-bit Flash-based microcontroller that can also be
upgraded in the field.
NOTE FOR USA: THIS DEVICE COMPLIES WITH PART 15 OF THE
FCC RULES. OPERATION IS SUBJECT TO THE CONDITION THAT
THIS DEVICE DOES NOT CAUSE HARMFUL INTERFERENCE.