Introduction

Emizon 21 is the advanced signalling service designed specifically for today's digital networks.  Simple to install as part of your alarm system, Emizon 21 shares the same broadband connection as your office communictions. Not only does this save you the expense of a dedicated line but it also means that your broadband connection is constantly monitored.  The second or back-up signalling path uses Vodafone's GPRS network. Because all alarm messages are managed bt the Emizon Service Platform over both fixed and wireless networks, service availability levels of 99.99% or better can be achieved.

Network Security

The Telemetry Communications Device (TCD) installed within the alarm control panel uses outbound TCP/IP connections only, via the landline IP (Ethernet) and the GPRS IP networks.  The TCD does not accept inbound connections and does not require any inbound IP ports to be opened on a customer firewall / router.  GPRS connectivity is established via a private network connection (APN), and no internet connectivity is possible via GPRS in the TCD.   No connectivity exists between the GPRS IP and landline IP networks in the TCD and no IP bridging is permitted between the networks in the TCD.  The TCD also contains an internal firewall to isolate the the TCD from any unauthorised connections or IP traffic.

Signalling Standards

European standards classify intruder alarm systems into four grades, grade 4 being the highest, based on skills, tools and the determination likely to be used by criminals at each level of risk. The standards that cover the equipment and performance standards are covered under PD6662:2004 & tables 10 and 11 of prEN50131-1:2004.

Emizon 21 is available as a Grade 2,3 or 4 service - the Grade 4 service has been tested and passed to LPS.1277 by BRE/LPCB for compliance with the highest EN Grade 4 signalling standards.