Adcon A720 Guía de usuario descargar pdf (Pagina 10)

CHAPTER 1

Introduction

bit processor running the Linux operating system. It has 16-MB

Flash EPROM acting as a hard disk and 16 MB RAM. The software

can be upgraded in the field.

Several interfaces are available: Ethernet, V34 modem, RS-232

serial, and RS-485 multidrop serial. A built-in rechargeable battery

provides the telemetry gateway with approximately 24 hours of

operation without mains power (the number of hours depends on

the number of RTUs the gateway has to poll).

The A440 Wireless Modem is a low-power, narrow-band data

transceiver 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.

WARNING This manual is valid only for release 3.8.4 of the

gateway’s firmware. You can verify that you have the appropriate

firmware by logging onto a serial terminal. The following should be

displayed on your terminal:

Telemetry Gateway A840 Version 3.8.4

If you have an older firmware version, you can get a new image file

from Adcon’s web site (http://www.adcon.at), or by contacting

Adcon technical support.

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.

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Adcon A720 Guía de usuario Pagina 10