Things To Know; Technical Data - GSM BIRTH ALARM Notice D'utilisation

NB: After being held vertical for 7 seconds, the
transmitter can be returned to a horizontal position
while it runs through the entire alarm procedure. If
there is something wrong with the module, the
transmitter will try 6 times (i.e. for 30 seconds) to
activate the module. If there is nothing wrong, the
transmitter switches off and returns to its rest state
(=>LED goes out).
The transmitter now looks for the numbers of the
SIM card and the provider's network. This is indi-
cated by the LED flashing at the normal rate for 20-
40 seconds. If the reception is poor, the LED flash-
es very fast for a longer period.
If everything is working properly (provider network
found, signal strength and SIM card OK), the trans-
mitter dials the first programmed number. The Birth
Alarm is now in the calling phase.
At the start of the calling phase, the LED is on con-
tinuously. During calling, it flashes at a 5 seconds
on/1 second off tempo. The calling phase lasts for
about 20 seconds.
NB: The flashing of the LED does not indicate that
the call has actually been successful.
At the start of the calling phase, it can take the
number called about 5 seconds to ring.
If the transmitter makes contact with the number
called, the LED flashes very slowly for 13 seconds.
The number also rings for 13 seconds. If it is not
answered, the calling phase is repeated after 90
seconds.
NB: There is no signal strength check during the
calling phase.
In the rest phase, the LED stays on continuously (if
not called back), and the transmitter checks the sig-
nal strength for the 90 seconds:
- red LED on constantly: signal strength OK
- red LED flashes very quickly: signal strength too
weak.
Summary
The red LED can indicate 3 important phases if the
transmitter is held vertically:
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- red LED immediately starts flashing at normal
rate during testing: battery low;
- -red LED flashes very quickly: poor reception;
- -red LED flashes for one minute, then repeats the
program: SIM card faulty (e.g. not properly pro-
grammed).

Things to know:

Birth Alarm GSM is patented in the Netherlands
and has been on the market since 1990. Since its
introduction more than 80,000 foals have succes-
fully been born using this system. Birth Alarm GSM
is used worldwide and is without a doubt market
leader in its area. Even the very first systems are
still being used year after year to the full satisfac-
tion of the user. Using the Birth Alarm GSM in com-
bination with low cost CCTV systems is a good
alternative.

7. TECHNICAL DATA

Transmitter – single-channel transmitter
Frequency : GSM 1800
Operational temp. : -15°C to 55°C
Power supply : 9V – DC (battery)
Power consumption : max. 40 mA
Dimensions :
Weight : about 200g
13.0 l x 4.0 w x 9.0 h (cm)
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