6 connector pin assignments, 12 • installation, Figure 2.2 cn1 pin assignments – Intel PCI-7200 User Manual

Page 22: O_ack o_req

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12

• Installation

2.6 Connector Pin Assignments

2.6.1 PCI-7200 Pin Assignments

The PCI-7200 comes equipped with one 37-pin D-Sub connector (CN2)
located on the rear mounting plate and one 40-pin female flat cable header
connector (CN1). The CN2 is located on the rear mounting plate; the CN1 is on
front of the board. Refer section 2.2 PCI-7200‘s layout.

CN2 is used for digital inputs (DI 0 ~ DI 15) and digital outputs (DO 0 ~ DO 15),
and the reminder digital I/O channels DI 16 ~ DI 31 and DO 16 ~ DO 31 are
presented on the CN1. The pin assignment of CN1 and CN2 is illustrated in the
figure 2.2 and 2.3.

Legend:

DO n : Digital Output CH n

DI n : Digital Input CH n

GND : Ground

ACK : ACK Signal of handshaking communication

REQ : REQ Signal of handshaking communication

I_TRG: Input signal to start the DI data sampling

O_TRG: Output signal can be controlled by software

21

20

2

3

4

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6

7

8

9

10

11

12

13

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15

16

17

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22

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37

18

29

35

34

33

32

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31

36

1

39

40

38

DI27
DI28
DI29
DI30
DI31
+5V

O_ACK
O_REQ

DI16
DI17
DI18
DI19
DI20
DI21
DI22
DI23
DI24
DI25
DI26

N/C

N/C
N/C

DO16
DO17
DO18
DO19
DO20
DO21
DO22
DO23
DO24
DO25
DO26
DO27
DO28
DO29
DO30
DO31
GND
O_TR1

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20

2

3

4

5

6

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8

9

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37

18

29

35

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32

30

31

36

1

39

40

38

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20

3

5

6

7

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10

11

12

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16

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37

18

29

35

34

33

32

30

31

36

1

39

38

DI27
DI28
DI29
DI30
DI31
+5V

O_ACK
O_REQ

DI16
DI17
DI18
DI19
DI20
DI21
DI22
DI23
DI24
DI25
DI26

N/C

N/C
N/C

DO16
DO17
DO18
DO19
DO20
DO21
DO22
DO23
DO24
DO25
DO26
DO27
DO28
DO29
DO30
DO31
GND
O_TR1

Figure 2.2 CN1 Pin Assignments

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