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j am" is most effective
when used
in conjunction
with
line
seizure
as provided
by a No. 663 Lfne
Seizure
Module
(see
Diagram
lot).
If
necessary,
the
680 will
make up to a total
of
IO attempts
to
reach
the
central
monitoring
station
as described
later,
in Step
4.
3. Upon receipt
of the
"handshake"
tone,
the
680 wi I I start
transmittinq
its
message.
",
/'
In less
than
5 seconds,
the
message,
consisting
of
a 3 digit
customer
identi--
flcation
number,
and a I digit
alarm
identification
number
(burglary,
fire,
panic,
freezer
temperature,
etc.
1 is sent.
Since
faulty
phone
lines
can distort
the
numbers,
the
680 sends
the
message
up to 4 times
while
the
receiver
compares
each message
with
the
one before
it.
As soon as the
Receiver
detects
2 successive
identical
messages,
it
considers
the
transmission
"va I id"
and sends
a "kiss-off"
code
(shutdown)
to the
Communicator.
If the
680 does
not
receive
the
"kiss-off"
code
by the
time
it
has sent
its
message
four
times,
it
hangs
up and dials
again.
Up to a total
of
IO attempts
will
be made to
reach
the
central
monitoring
station.
See Step
4.
4.
In the
event
that
either
the
"handshake"
or the
"kiss-off"
is not
received,
the
Communicator
hangs
up and tries
again.
If
necessary,
the
680 wi I I make
up to a total
of
IO attempts
to
reach
the
central
monitoring
station.
If
after
IO attemots
the
Communicator
has not made contact
and received
the
"kiss-off"
signal,
it
will
shut
down and stop
dialing.
ADDITIONAL
FEATURES AND INFORMATION:
Abort:
At the
installer's
option,
Channel
A of the
680 can be wired
in either
the
abort
or non-abort
mode simply
by positioning
a lead
on the
printed
circuit
boa rd.
(Channel
B is pre-wired
for
non-abort
only
operation.)
alarm
system
is reset
after
code 9 will
be transmitted
(whether
or not
"kiss-off"
wi I I not
redial).
In the abort
mode,
if
the
alarm
system
triggering
the
680 is
reset
prior
to
"handshake",
the
message
is cancelled
and no transmission
will
occur.
If
the
has occurred,
a
of
the
alarm
code
instance,
the
680
"handshake"
but
before
"ki s&of
f :
to.the.:monitoring
station,
instead
is subsequently
received,
in this
In the
non-abort
mode, once
the
680
is activated,
the
message
cannot
be cancelled.
"Hold" Feature:
The 680 will
function
with
receivers
(such
as SESCOA's)
that
have
multiple
telephone
I ine capabi
I ily.
It
can automatically
detect
the
special
"hold"
signal
that
will
be sent
when the
receiver
is busy
processing
another
call.
When
the
receiver
is
ready,
the
680 on "hold"
will
be signal
led to
proceed
with
its
normal
transmission.
INSTALLATION
PROCEDURE:
Mounting:
The 680 may be mounted
in a No. 205 Cabinet
or any other
enclosure
that
will
accommodate
it.
See GENERAL INFORMATION.
(T-7
'.
/'
If
a No. 205 Cabinet
is to
be used,
mount
the
cabinet
in
its
desired
location
and
install
the
communicator
chassis
in
it.
Use the
upper
set
of grooves
provided
at
the
side
edges
of
the
cabinet
and secure
the
chassis
with
a sheet
metal
screw
through
<c--l -:
the
upper
hole
in the
cabinet's
right
edge.
216
209
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