Comark RF500 Manuale Utente Scaricare il pdf (Pagina 12)

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 Limited use 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 PC.

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

automatically backed up to a PC using the optional RF500 Backup Server software 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.

The Gateway can be either desk mounted or wall mounted. Wall mount keyhole slots are

provided on the case. The external long range Antenna has variable orientation to suit

vertical or horizontal mounting.

Three LEDs on the Gateway display current status of the system – Mains/Battery, Alarm

indication, and Fault indicators.

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Comark RF500 Manuale Utente Pagina 12