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9) GPIO (GPIO Header)
Use this header to connect a GPIO device.
7
1
8
2
10) COMAB (Serial Port Header)
Each COM header can provide two serial ports via a COM port cable.
2
20
1
19
11) COM_PW (Serial Port Header Power Select Jumper)
The power select jumper is used to select serial port power.
1 2
COMA:
1-3 Close: Set to 12V.
3-5 Close: Set to 5V. (Default)
5 6
COMA COMB
12) SMBUS (System Management Bus)
1
Pin No. Definition
Pin No. Definition
1
5
GPIO
2
6
GPIO
3
7
GPIO
4
8
GPIO
Pin No. Definition
Pin No. Definition
1
NDCDA-
8
2
NDSRA-
9
3
NSINA
10
4
NRTSA-
11
5
NSOUTA
12
6
NCTSA-
13
7
NDTRA-
14
COMB:
2-4 Close: Set to 12V.
4-6 Close: Set to 5V. (Default)
Pin No. Definition
1
GND
2
SMB_DATA
3
SMB_CLK
4
5V DUAL
- 13 -
CP_OUT
GND
I2C DATA
I2C_CLK
Pin No. Definition
RIA+5V/+12V
15
NSOUTB
GND
16
NCTSB-
GND
17
NDTRB-
NDCDB-
18
RIB+5V/+12V
NDSRB-
19
GND
NSINB
20
GND
NRTSB-
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