Comark RF500A - Manual (Page 35)

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RF500 Wireless Monitoring System Overview
Gateway – Introduction
The RF500A Gateway is an embedded microprocessor device containing a radio module for RF communications
to the monitoring 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 RF500A 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 user's
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.
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 7 - Bottom View of RF500A Gateway” {Page 25} 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.
Four LEDs on the Gateway display the current status of the system – ON, Power/Battery, Alarm indication, and Fault
indication.