Roboguard
38
LED INDICATOR
Introduction
The LED unit is used to visually indicate the status of the Roboguard
system to a distant user. The idea is that the property owner can see
whether the alarm has been triggered in their absence and can
therefore proceed with caution if this is the case.
The unit has 3 internal LEDs: the first one is not used, a solid middle
one displays that the processor is running, and the bottom one shows
the LED output (NC) status.
When the LED unit is powered up the bottom indicator will flash. This is
the default state of the unit. This will also alert the user of a possible
power failure while they were away.
Installation
Position the LED UNIT in a position suitable for the control of the LED
array (separately purchased) and the sampling of the siren control line
(YELLOW wire) from the HQ. It might be best to mount the unit close
to the HQ and connect the tele-cable directly to the LED unit.
Wiring
Wire the LED unit to +12V and GND (0V), ensuring the 0V is common
with the 0V of the HQ tele-cable (BLUE wire).
Connect the yellow wire from the HQ tele-cable.
Please note:
There are no power connections available from the HQ.
The 12 V power supply has to be supplied separately and is usually the
same one powering the siren.
Connect the siren and LED array. If a single 3mm or 5mm LED is used
it is essential to connect a resistor in-line, as shown.
Resistor values are typically 330@ for high-brights and 1k@ for
standard ones.
Commercial LED arrays should have protection resistors already fitted
or should come with instructions on what is needed.
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