User manual

DESCRIPTION Page 6 | 41
Operating guide for Alarm Receiver DECRYPTA
3
MCDI Security Products Inc.. Internet: mcdi.com
7055 Jean-Bourdon Avenue, Montreal, QC, Canada H4K 1G7 Telephone: [phone] Fax: [phone]
Insure that your circuit delivers less than 14V to DECRYPTA
3
. Significant heat dissipation will result if using a power
source of more than 13.8V. This may damage the unit of reduce life expectancy of DECRYPTA
3
.
-Verify installation regularly.
-Consult a qualified Electrician prior to connecting DECRYPTA
3
If you are using a battery, a battery charger and/or
equipment
Alternative power source 9-12V DC
DECRYPTA
3
is shipped with a power adaptor. When another power supply is preferred for the 9-12V DC input, a
lower voltage should be preferred over a higher voltage to minimize heat dissipation in DECRYPTA
3
.
USB Hub
While testing several units, MCDI did not find a USB hub able to power TWO DECRYPTA
3
units. You must power the
units by their 9-12V DC input if you plan to use a USB hub and use the USB hub only for the benefit of data concentration.
Ground post
As as safety for users and the DECRYPTA
3
alarm receiver, DECRYPTA
3
is provided with a ground post at
the back on the unit. A wire of AWG #14 should be used along with a lug connectors. Ground connection must be maintained
and verified regularly to insure ground to earth is always present.
Best practice in making a ground connection from DECRYPTA
3
are to insure a non resistive connection to a known
and tested ground in a well built electrical installation or connect the ground lug of DECRYPTA
3
to a metallic water
pipe going to earth or to a rod deeply planted to earth.
Should several DECRYPTA
3
units be used it is preferable not to chain units by their ground lugs. A better practice is
to use a ground star technique according to Diagram.
Using a battery charger
MCDI tested and recommends a supervision circuit like Altronix PM212 (altronix.com). This circuit will take 16VAC wall
transformer (Alarm panel transformer) charge a 12V battery, insure supervision and will deliver power from battery when AC
feed is missing.
When using a battery charger, insure that the tension at DECRYPTA
3
electrical entry is less than 14VDC. Applying
voltage of more than 14V DC may cause significant heat dissipation within unit. Damages may result and this may reduce life
expectancy of DECRYPTA
3
WARNINGS
- DECRYPTA
3
does not supervise battery.
-Verify electrical set-up regularly.
-Always use properly mounted and approved cables to connect DECRYPTA
3
-Do not use an over charger battery or a battery dispensing more than 14VDC.
-Consult a qualified Electrician prior to connecting DECRYPTA
3
If you are using a battery, a battery charger and/or
equipment not provided by MCDI Security Products Inc.
-Damages resulting from power surges of any kind of specifically excluded from DECRYPTA
3
warranty.
USING ON-BOARD RELAY :
DECRYPTA
3
is equipped with a relay to trigger an external device such as strobe light, dialer, siren upon reception of
an alarm signal.
Terminal posts are located at the back of the unit. Posts: 1 and 2 are Normally Open. Posts 2 and 3 are Normally Closed. Post
2 is the Common. Maximum rating : 110V DC or 125 V AC / 1A UL/CSA rating : 30V DC / 1A 110V DC or 125V AC /
.3 A.