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Connector Summary
STX104 I/O Connector J7

+5V POWER

1

2

CT_OUT2

CT_OUT0

3

4

CT_CLK0

DOUT3

5

6

DOUT2

DOUT1

7

8

DOUT0

DIN3

9

10

CT_GATE0 / DIN2

DIN1

11

12

TRIG / DIN0

DGND

13

14

SS&H

-5V

15

16

DAC_OUT_2

DAC_OUT_1

17

18

AGND

No Connection (NC)

19

20

AGND

CH7 LOW / CH15

21

22

CH7 / CH7 HIGH

CH6 LOW / CH14

23

24

CH6 / CH6 HIGH

CH5 LOW / CH13

25

26

CH5 / CH5 HIGH

CH4 LOW / CH12

27

28

CH4 / CH4 HIGH

CH3 LOW / CH11

29

30

CH3 / CH3 HIGH

CH2 LOW / CH10

31

32

CH2 / CH2 HIGH

CH1 LOW / CH9

33

34

CH1 / CH1 HIGH

CH0 LOW / CH8

35

36

CH0 / CH0 HIGH

AGND

37

38

No Connection (NC)

No Connection (NC)

39

40

No Connection (NC)

 

Name 
Direction 
CT_OUT0 
Output 
CT_CLK0 
Input 
CT_OUT2 
Output 
TRIG/DIN0 
Input 
DIN1 
Input 
CT_GATE0 / DIN2 
Input 
DIN3 
Input 
DOUT0 
Output 
DOUT1 
Output 
DOUT2 
Output 
DOUT3 
Output 
DAC_OUT_1 
Output 
DAC_OUT_2 
Output 
CHn LOW / CHn 
Input 
CHn HIGH / CHn 
Input 
+5V POWER 
Output 
-5V 
Output 
CHn 
Input 
DGND 
AGND 
SSH* 
Output 

* See Channel Register Description for more details 

 

 

UNIPOLAR OR BIPOLAR ANALOG INPUT (J9)

1

2

Jumper 
Function 
0* 
Bipolar Analog Inputs ( +/- values accepted ) 
Unipolar Analog Inputs ( + values only ) 

* Factory Default 

Note: 1 = Jumper installed, 0 = Jumper not installed. 

 

 

 

DIFFERENTIAL OR SINGLE-ENDED ANALOG INPUT (J8)

1

2

Jumper 
Function 
0* 
Differential Inputs, 8-channels 
Single-Ended Inputs, 16-channels 

* Factory Default 

Note: 1 = Jumper installed, 0 = Jumper not installed. 

 

 

DAC RANGE SETTINGS (J5)

DA1_R

1

2

DAC-1 Range

DA1_UB

3

4

DAC-1 Bipolar

DA2_R

5

6

DAC-2 Range

DA2_UB

7

8

DAC-2 Bipolar

DA1_UB 
DA1_R 
DAC-1 RANGE 
0 to +5 Volts * 
0 to +10 Volts 
-5 to +5 Volts 
-10 to 10 Volts 

* Factory Default 

Note: 1 = Jumper installed, 0 = Jumper not installed. 

 

DA2_UB 
DA2_R 
DAC-2 RANGE 
0 to +5 Volts * 
0 to +10 Volts 
-5 to +5 Volts 
-10 to 10 Volts 

* Factory Default 

Note: 1 = Jumper installed, 0 = Jumper not installed.

Copyright © 1997-2008 by Apex Embedded Systems. All rights reserved. Updated on Wednesday, April 02, 2008.
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