MOBILE & WIRELESS
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GSM Bulk
Finally an embedded application!
Thanks to the technology used inGSM Bulk, it is
possible to build custom applications to satisfy any
particular need.
We can carry out applications working independently
from your device, taking care of the “communication”
part only.
For example, we can send an SMS when a change of
a TTL input is detected or manage a password
exchange without modifying a string in your
application.
Pin-out Technical Features
PIN J5
PIN J7
SIGNAL
DIRECTION
ELECTRIC LEVEL
1
--
DCD
DTE <-- DCE
TTL 0 = Active
2
27
DSR
DTE <-- DCE
TTL 0 = Active
3
28
RxD
DTE <-- DCE
TTL 0 = Space
4
30
RTS
DTE --> DCE
TTL 0 = Active
5
25
TxD
DTE --> DCE
TTL 0 = Space
6
13
CTS
DTE <-- DCE
TTL 0 = Active
7
29
DTR
DTE --> DCE
TTL 0 = Active
8
-
RING
DTE <-- DCE
TTL 0 = Active
9
1-2-6
Gnd
-
0 Volt
10
3-4
5Vdc
±
10%
-
5 Volt
11
-
-
-
N.C.
12
15
On/Off
DTE --> DCE
TTL 1 = On
TTL 0 = Off
13
-
-
-
N.C.
14
21-24
Gnd
-
0 Volt
(U4) 1
20
Mic ( + )
DTE --> DCE
(U4) 2
-
Mic ( - )
DTE --> DCE
(U5) 1
12
Spk ( + )
DTE <-- DCE
(U5) 2
-
Spk ( - )
DTE <-- DCE
Power Supply
Vcc = 5Vdc
±
10%
Icc = 350mA typ [1700mA max]
J5: RS232 [standard]
(male connector 2x7 passo 2,54)
U4: Microphone input [standard]
(male connector 2pin passo 2,54)
U5: Speaker output [standard]
(male connector 2pin passo 2,54)
J7: RS232 [optional]
(male connector 2x25 passo 1,27)
GSM Bulk is suitable for the following
applications:
telemetry;
remote control in energy production
environments;
inside gas, water and electrical energy
distribution rooms;
for the monitoring of ways and railways
(traffic detection, SOS points, etc.) and for
traffic lights remote control;
on-line public informative systems (rotating
advertising messages on ways, motorways,
buses);
image transmission in security applications;
inside POS terminals;
bypass of the last mile through the GSM
network, for telecommunications operators;
inside vending machine and dispensers;
in automotive applications;
