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Installing and Maintaining i-on10
Page 13
When considering the power drawn, include the control unit's PCB and all peripherals
powered by the control unit, including any plug-by communicator, keypads and wired
detectors.
Table 3 gives a summary of the current consumed by the i-on10 PCBs and popular
peripheral devices.
Table 3: Current Consumptions
Device
Current Consumption (In Alarm)
i-on10 PCB
Quiescent: 40mA
In alarm: 70mA
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)
SDR-WEXT
external siren/strobe
Quiescent: 35mA
In alarm: 225mA
Worked example
The following shows a simplified example of checking power availability.
Device (quiescent)
Current
Control unit PCB
40mA
10 x PIRs at 15mA each
150mA
2 x KEY_FKPZ at 25mA each (backlights off)
50mA
Plug-by digital communicator
25mA
Siren
35mA
Total
300mA
During an alarm, the current consumptions are:
Device (in alarm)
Current
Control unit PCB
70mA
10 x PIRs at 15mA each
150mA
2 x KEY_FKPZ at 65mA each
130mA
Plug-by digital communicator
150mA
Siren
225mA
Total
725mA
Since the control unit's power supply can provide 820mA (excluding battery charging), the
above shows that the power supply is able to power the system during an alarm (725mA).
The total amp-hours required for the battery for Grade 2 is:
(0.3A x 11.5h) + (0.725A x 0.5h) = 3.81Ah
A fully-charged, 7Ah battery can provide the charge required by the above example to
meet Grade 2 requirements.