Elenco Electronics MO-1251 Manual de usuario descargar pdf (Pagina 36)

100

INSTALL

HOME

SECURITY

SYSTEM

Do it yourself

and save on

the

cost of a professional

-quality

home burglar alarm.

....

......:

HERB FRIEDMAN and BRIAN C. FENTON

HOUSE BURGLARY

IS NO LONGER

growth industry. Statistics

show that

for the past

several years there

has

been a decline

in the percentage of

house burglaries. Is that because

there

are fewer thieves?

No! There are fewer

burglaries because

there are more

home alarm systems.

burglar

will move on to an un-

protected

house rather than take

his

chances

with

one that's

obviously

protected -unless

he's certain that

you've stashed away a

fortune in cash

gems. Under those circumstances,

no alarm system

the

world will

protect your

valuables.

Unfortunately,

if you've priced

dealer

-installed home protection

you

have most likely experienced

"sticker

shock," because

in many localities

there

basic c: %arge of

several hun-

dred dollars

for the central control

unit, plus $50 per

opening -an open-

ing being anything

that has a sensor: a

window,

a door, a

skylight, an interior

closet,

valuable

picture, etc.

Fifty

dollars an

opening adds up quickly,

even

a small burglar

-alarm installa-

tion can

cost

well

in excess

of $1000,

and even

then you might

not

end

with

every

opening protected -you

might get just door

protection and

some kind of area detector

to cove

the

"important" parts

of your

home.

Do it yourself

But

if you

can

spare from one to

three days,

you can install a profes-

sional-

quality all- opening intruder

system

at a

starting

price of about

$250. If you

want

to have more of

the

bells and whistles of a multi -zone

pro

system, you

can

still

do it for signifi-

cantly less

than

$1000.

Here,

we'll

show you two

basic alarm- system in-

stallations:

first

we'll

look at a wired

system, and

second, a

wireless

sys-

tem. But

before

get

into the nitty-

gritty of drilling

holes and connecting

wires,

a few words

about the equip-

ment

used for this article.

For the wired

system,

selected

Radio

Shack 49 -450 control

center.

Not

because the Radio Shack control

center is necessarily the

best, but be-

cause it's good and it's

easily avail-

able. A user can get service,

and

future

Radio Shack

accessories

will

probably work with

all of their older

equipment.

For the

wireless

system, we se-

lected the Dicon 9000 wireless

securi-

ty system from

Dicon Systems, Inc.

(631 Executive Drive, Willowbrok,

IL 60521).

picked

the

9000

be-

cause it gives us an excellent oppor-

tunity to point out how

electronics

has

made super hi -tech features

available

on do- it- yourself home burglar -alarm

systems.

Let's do it

Let's get on

with

installing our

wired

alarm. In addition to the usual

hand tools -long -nose

pliers, cutters,

and screwdriver -you'll

need an elec-

tric drill, an 18 -inch long, 3/s -inch

feeler or

electrician's bit (it has a hole

near

the tip to help you pull wires

through

walls

and floors), and

an Ar-

row T -25

staple gun. The T -25 shoots

round staples, which are safe for stap-

ling

wires

to moldings -the round

staple doesn't cut into the

wire.

(The

T -25 staple gun can usually be rented

for

a day or so.)

The Radio

Shack

model 49 -450

control center is powered by 117

volts

or a rechargeable battery that au-

tomatically

cuts

in if

the

power

fails. The

control center provides

three

protective circuits that are called

loops. There is an instantaneous loop

that sounds the alarm as soon as one

of its switches

is opened; a door loop

that provides up to 45 seconds to get

out of the house after the alarm is

armed

(turned

on), and

up to

45 sec-

onds to turn off the alarm after you

enter; and a panic circuit that allows

you to sound the alarm -even if the

system isn't armed -by pressing a

panic or an emergency switch

within

the house. Most important, the Radio

Shack control center can

used

with

a $22

Touch -Tone

-type digital

key

switch (we'll

explain

its importance

later). So- called pro control centers

require almost $200 in extra

hardware

to provide digital keyswitch control.

The control center has LED indicators

that

show

the protective

loops

are

set

(sensors

closed), that the system is

armed, that the AC power is on, and

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