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10
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
GPIO Board Connectors
Figure 6.
GPIO Board Connectors
1
2
3
No.
Item
Description
1
GPI5 Input, GPI6 Input, GPI7 Input,
GPO8 Output, GPO9 Output
Used to connect external devices to the modem to read an
input or set an output
2
GPO0 Output, GPO1 Output,
GPO2 Output, GPO3 Output, GPI4
Input
Used to connect external devices to the modem to read an
input or set an output
3
GPIO power supply and ADC input Used to power external voltage sources for GPI inputs and
provide GND reference. ADC input to read external anaglogue
voltage from the modem.
A
B C D E
F
G H I
J
K L M
Letter PIN
Description Direction
A
Pin 1
GPO6
Output
B
Pin 2
GPO5
Output
C
Pin 3
GPI4
Input
D
Pin 4
GPI3
Input
E
Pin 5
GPI2
Input
Connector 1
Letter PIN
Description Direction
K
Pin 1
3.3V
Output
L
Pin 2
GND
Output
M
Pin 3
ADC1
Inputl
Connector 3
Letter PIN
Description Direction
F
Pin 1
GPI1
Input
G
Pin 2
GPO4
Output
H
Pin 3
GPO3
Output
I
Pin 4
GPO2
Output
J
Pin 5
GPO1
Output
Connector 2