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1.5 GPIO Designation
1
2
IO1+
IO1-
Input
Input
port:
port:
optocoup
optocoup
ler 1
ler 1
input
input
LED+
LED -
Description:
1. Io1+: the voltage range between optocoupler 1 input led+, io1+ and io1- is 3-12v, and the
maximum current is 50mA;
2. Io1-: the voltage range between the optocoupler 1 input led-, io1+ and io1- is 3-12v, and the
maximum current is 50mA;
3. Io2+: the voltage range between optocoupler 2 input led+, io2+ and io2- is 3-12v, and the
maximum current is 50mA;
4. Io2-: the voltage range between the optocoupler 2 input led-, io2+ and io2- is 3-12v, and the
maximum current is 50mA;
5. Io3-: the voltage range between the three pole transistor e-pole, io3+ and io3- is 3-12v, and
the maximum current is 50mA;
6. Io3+: the voltage range between the three pole transistor C pole, io3+ and io3- is 3-12v and
the maximum current is 50mA;
7. Io4-: the voltage range between the three pole transistor e pole, io4+ and io4- is 3-12v and
the maximum current is 50mA;
8. Io4+: the voltage range between the three pole transistor C pole, io4+ and io4- is 3-12v and
the maximum current is 50mA.
3
4
IO2+
IO2-
Input
Input port:
Output
port:
optocoupl
port:
optocoup
er 2 input
optocoup
ler 2
LED-
ler 3
input
output e
LED+
pole
MR16 User's Manual V1.1
5
6
IO3-
IO3+
IO4-
Output
Output
port:
port:
optocoupl
optocoupl
er 3
er 4
output C
output e
pole
pole
7
8
IO4+
Output
port:
optocoup
ler 4
output C
pole
8
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