User Manual

RF500 Wireless Monitoring System Overview

Gateway – Introduction

The RF500 Gateway is an embedded microprocessor device containing a radio module for RF communications to the

measuring transmitters. The radio module uses a licence free band in the 2.4GHz spectrum. Comark Instruments RF500

uses proprietary protocols over a standard IEEE 802.15.4 link. These protocols achieve reliable communication between

the transmitters and the Gateway via self-healing mesh radio networks.

Data from measurements taken by the transmitters is stored on the RF500 Gateway in contrast to other systems which

store their data on a PC using special software. For operating the RF500 system the only software required is a Web

Browser such as Internet Explorer or Firefox. There is no requirement to install software on each users computer.

The Gateway contains sufficient data storage capacity for up to 10 years which can be automatically backed up to

external storage using the built in shared drive backup method, or by manual request to generate and download a backup

file via your web browser.

Connection to the Gateway is via Network (ethernet) connection or remotely via optional analogue modem. For modem

access a dedicated Analogue phone line must be provided.

An external power adaptor provides the mains power for the Gateway. An internal Nickel-Metal-Hydride (Ni-Mh)

rechargeable battery is included, this provides normal operation of the Gateway during power failure until the battery is

exhausted, The Gateway then shuts down until power is restored.

Two relay connectors are provided for external alarms, Autodiallers/Klaxons etc. All other connections to the Gateway are

disabled. See Figure 3 – Left Hand Side View of Gateway for further details.

Emails for alarms will be instigated directly from the Gateway. It is also possible to send a text message alarm via email

using a third party provider.