21
The System LED connections
(Orange and Grey tagged wires)
Where possible agree the position for the system LED with the customer when discussing their requirements and fit it
accordingly.
Do not fit more than one LED. It will increase the current usage of the system.
The LED can be installed by three methods:
In its plastic shroud via a drilled 8mm hole
By use of the self adhesive LED holder in conjunction with the plastic shroud
By an interference fit of the LED into an exact size hole drilled for the LED only (hole size 5mm)
The final solution is becoming the most popular with the LED being installed into the rear tail light or indicator.
With the current trend towards LED based rear light clusters it is very important the circuit board on the tail light is not
damaged.
DO NOT DRILL the back of the tail light of this design unless you are absolutely sure you will not damage the LED array.
Often on this type of display it is possible to carefully drill the assembly so the alarm LED is fitted between the LED array
and the lens of the tail light (normally at the top). When doing this, the LED wires themselves normally have to be bent
over. Always position the LED so the wires can be bent in the right direction easily. DO NOT BEND the wires over one
another.
Consider if the LED needs to be disconnected to service or clean the machine. If it does it may be better to install bullet
connectors to make the process easier.
Should you decide to use bullet connectors, always fit a female bullet on the GREY tagged wire coming from the alarm
and a male bullet on the ORANGE tagged wire. The GREY tagged wire carries the LED positive supply so by fitting the
Female bullet to it you protect it from shorting out. It also means should you ever need to replace or refit the LED you will
always connect it the right way round.
N.B. The system LED is rated at 2volts DO NOT TEST IT ACROSS A 12 VOLT BATTERY. IT MAY EXPLODE!
If you wish to test the LED directly use a 1.5 volt battery, the Grey wire of the LED is Positive the Orange wire is Negative.
The optional supplementary siren output
(Green/Yellow tagged wire)
The Green/Yellow tagged wire gives 500mA of positive output only when the siren is sounding. This can be use to drive
an additional siren (Pt. No. 02012004) or a paging/text system such as the Datatool Text alert (Pt. No. 08000200). Any
such items are not part of the standard installation and therefore should be treated as extras and charged accordingly.
Some devices require a negative signal to trigger them, in these cases the signal can be converted via a standard 12 volt
switching relay.
If more than 500mA is required to drive the supplementary device(s); use the output to drive a relay.
If you are not using this output the end of the wire should be insulated, the Green/Yellow tags should be left on and the
wire stored safely in a suitable position. This position should be recorded on the customer’s certificate of installation.
