IRIS Touch Home Installation Manual Version 1.0 Page 6of 17
2. Configuration options
The IRIS range of alarm dialers allows alarm systems to move into fixed line (Ethernet) and/or
wireless networks (GPRS) without the need to upgrade or replace the alarm system.
In some smaller alarm panels however the battery backup within the panel is not sufficient to
power both the panel and an IRIS Touch dialler for a continued period of operation once mains
power is lost. The IRIS Touch Home enhances the IRIS Touch range by providing both the power
and battery backup supply in a single unit.
The IRIS Touch Home offers various power supply and battery charging options:
2.1. Powering from an independent mains adapter
Power is provided from a separate DC mains power adapter provided for use with the IRIS Touch
Home. This mode can be used where a mains power socket is available. The mains adapter should
be specified to deliver up to 1A at 9-28V DC or 7V-20V AC.
Please refer to Figure 1
2.2. Intelligent powering from an alarm panel AUX output
This uses an auxiliary power output from the panel (such as that used to power a siren). This is
intelligently controlled by the IRIS Home with power only being taken when mains power to the
alarm panel is available. This avoids the alarm panel battery life being shortened during mains
power failure. This mode can be used where the alarm panel has an auxiliary DC power output of
9V to 35V DC that can deliver at least 500mA above the requirements of any other attached
device.
Please refer to Figure 2
2.3. Intelligent powering from the panel mains adapter
Power is provided via the low voltage AC or DC adapter used by the alarm panel. Because the IRIS
Touch Home senses the output voltage level of the alarm panel mains adapter, it draws no
current while the panel power supply is fully loaded. In this mode the power input to the alarm
panel must be accessible and has a connector for an additional cable. This mode can be used
where 500mA more than that required by the panel itself can be delivered by the adapter.
Please refer to Figure 3
2.4. Intelligent powering from the alarm panel battery charger
Power will only be taken when mains power to the alarm panel is available, preventing alarm
panel battery life being shortened during mains power failure. This mode can be used where the
alarm panel uses a 12V battery, the charger can deliver more than 500mA, leaves its battery on
charge at all times and does not have its own intelligent battery charging mode. Please consult
the alarm panel supplier if in doubt. This method will affect the recharge time of the alarm panel
battery.
Please refer to Figure 4