IRIS Touch Engineering Manual Version 1.4 Page 35 of 40
10. Installation for EN54-21 Compliant Fire Applications
Introduction
The IRIS Touch NG range of diallers are certified as compliant with the European standard EN54-21 – ‘Fire detection
and fire alarm systems - Alarm transmission and fault warning routing equipment’. In order to comply with this
standard there are conditions to which the installation must comply. These conditions apply both to the dialler and
to the fire control and indicating equipment (CIE).This guide describes these conditions.
The IRIS Touch models that are certified to EN54-21 and for which this guide is applicable includes:
IRIS Touch 600NG, Touch 620NG, Touch 640NG
Note: if these conditions are not complied with, then the installation will not be compliant with EN54-21.
All other aspects of the installation are covered in the standard intruder alarm installation guide for the particular
product.
General description of the equipment
IRIS Touch diallers are used to take alarms from fire control and indicating equipment (CIE) and transfer these
reliably over IP telecommunication networks such as Broadband and GPRS/3G. In most cases the interface uses
inputs to the IRIS Touch dialler, but in special cases dial capture (PSTN emulation), serial RS232 data and serial RS485
data can also be used.
Depending on the particular version backup communication over GPRS/3G or PSTN is also provided.
All communications paths can be constantly monitored (supervised) so any failures are reported to the alarm
monitoring centre.
The diallers comply with transmission system type 1 as described in Annex A of EN54-21 when signaling is over
Ethernet (e.g. broadband), GPRS/3G or Ethernet with GPRS/3G backup. The diallers comply with transmission system
type 2 as described in Annex A of EN54-21 when one of the signaling paths is PSTN (e.g. Ethernet with PSTN backup,
GPRS/3G with PSTN backup or PSTN only).
Technical specification
Please refer to the specifications in the engineer manual for the appropriate IRIS Touch dialler.
Installation, Configuration and Commissioning
Requirements for the monitoring centre
The monitoring centre should set up the monitoring of the site as follows:
Type 1 (i.e. transmission over Ethernet and/or GPRS/3G):
Reporting time (i.e. poll period + poll overdue period) 80s or less.
Type 2 (i.e. PSTN used as main or backup transmission path)
Reporting time (i.e. poll period + poll overdue period) = 24 hours or less
Requirements for the installation
General installation instructions are provided in the installation guides provided with each product. The following
additional requirements are for EN54-21 compliance:
The Fire CIE must have the capability of indicating fire signal acknowledgements and fault conditions as visual
indications driven by the outputs from the dialler, as described below. These indicators must be in compliance
with EN54-21.
The dialler should be powered from an EN54-4 compliant power source.
The dialler must be mounted in an Access Level 3 protected enclosure compliant with the requirements of either
EN54-2 (Fire detection and fire alarm systems – Control and indicating equipment) or EN54-4 (Fire detection and
fire alarm systems – Power supplies). If there is not sufficient space to mount the dialler within the existing CIE
or power supply cabinet, an alternative is to use a separate EN54-4 compliant power supply cabinet. A model
from the Elmdene ‘ST’ range is recommended. If the enclosure used is not actually that used to house the power
source, then the enclosure must be mounted against the power source enclosure in such a way that the power
cable between the two cannot be the subject of tamper or accidental damage.
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