Planning the Installation
Page 13
External sirens
These must be located out of reach of intruders and vandals, but must be easily visible for
maximum deterrence.
Checking power availability
You must make sure that:
a)
The control unit's power supply will have sufficient capacity to power all connected
devices. The power supply in i-on Next Generation control units is rated at 1.0A max,
of which 180mA is reserved for battery charging, leaving 820mA available for the
control unit's PCB and other devices.
b)
The backup battery can provide sufficient power in the event of a mains failure.
EN50131-1 or PD6662 Grade 2 requires the backup battery to be able to power the
system for at least 12 hours, including two 15-minute periods in alarm.
When using a single 7Ah battery, the limiting factor is normally the power available from
the backup battery during a mains fail.
If there is insufficient power available from the control unit or backup battery, consider the
use of remote power supplies (see pages 10 and 18).
When considering the power drawn, include the control unit's PCB and all peripherals
powered by the control unit, including any output devices (12V and 14.4V), plug-on/plug-by
communicator, bus devices and wired detectors.
Each device's installation instructions specifies the current drawn by that device. Table 2
gives a summary of the current consumed by all i-on control unit PCBs and popular
peripheral devices.
Table 2: Current Consumptions
Device
Current Consumption
i-on30R PCB
90mA
i-on40H PCB
110mA
i-dig02 or i-sd02
plug-on module
Quiescent: 20mA
In alarm: 50mA
i-gsm02 plug-on
module
150mA
Wired expander
20mA (no sounder connected)
Wired PIR
15mA
KEY-FKPZ keypad
Quiescent: 25mA
In alarm: 65mA
i-kp01 keypad
Quiescent: 30/40/60mA (backlight off/on/bright respectively)
In alarm: 45/45/65mA (backlight off/on/bright respectively)
KEY-KPZ01,
KEY-KP01 or
KEY-K01 keypad
Quiescent: 35mA (backlight off, no external proximity reader)
In alarm: 65mA (backlight on, external proximity reader fitted)
KEY-RKBS two-way
keypad base station
35mA (buzzer off)
SDR-WEXT
external siren/strobe
Quiescent: 35mA
In alarm: 225mA