DIO Connectors

The GX5150 (Master) has 5 connectors while the GX5151 (Slave) has 3. All the connectors are available on the instrument’s front panel.

The GX5150 (Master) has the following connectors:

Name

Description

J1 I/O

UUT Control signals

J2 I/O

UUT I/O Signals

J1 Timing Control

Timing Module Control Signals.

J7 Timing

Timing Signals Daisy-chained to additional slaves on the left.

J8 Timing

Timing Signals Daisy-chained to additional slaves on the right.

 

The two UUT connectors (J1 & J2) and the Timing connector (J1) are 68-pin VHD connectors. J7 and J8 are 20-pin high-density headers that are used to Daisy-chained additional Slave DIOs to achieve a pattern that is wider than 32 channels.

The GX5151 Slave has the following connectors:

Name

Description

J1 I/O

UUT Control signals

J2 I/O

UUT I/O Signals

J7 Timing  

Timing Signals Daisy-chained to additional slaves on the left.

 

The two UUT connectors (J1 & J2) are 68-pin VHD connectors. J7 is a 20-pin high-density header.

The figure below shows the layout of the 68-Pin VHD connectors used for UUT and timing signals. The 68-pin male end plate connector has a shielded, double pin row receptacle. The connector mates with a UUT cable.

GX515x 68-Pin (VHD) Connector

GX515x 68-Pin (VHD) Connector

 

J2 I/O Connector (68-Pin to UUT)

The following table defines the GX515x DIO to UUT signal I/O. This interface uses a 68-pin VHD connector.

Pin

Signal

Type

Pin

Signal

Type

Pin

Signal

Type

Pin

Signal

Type

1

I/O0+

I/O

18

I/O17+

I/O

35

I/O0-

I/O

52

I/O17-

I/O

2

I/O1+

I/O

19

I/O18+

I/O

36

I/O1-

I/O

53

I/O18-

I/O

3

I/O2+

I/O

20

I/O19+

I/O

37

I/O2-

I/O

54

I/O19-

I/O

4

I/O3+

I/O

21

I/O20+

I/O

38

I/O3-

I/O

55

I/O20-

I/O

5

I/O4+

I/O

22

I/O21+

I/O

39

I/O4-

I/O

56

I/O21-

I/O

6

I/O5+

I/O

23

I/O22+

I/O

40

I/O5-

I/O

57

I/O22-

I/O

7

I/O6+

I/O

24

I/O23+

I/O

41

I/O6-

I/O

58

I/O23-

I/O

8

I/O7+

I/O

25

I/O24+

I/O

42

I/O7-

I/O

59

I/O24-

I/O

9

I/O8+

I/O

26

I/O25+

I/O

43

I/O8-

I/O

60

I/O25-

I/O

10

I/O9+

I/O

27

I/O26+

I/O

44

I/O9-

I/O

61

I/O26-

I/O

11

I/O10+

I/O

28

I/O27+

I/O

45

I/O10-

I/O

62

I/O27-

I/O

12

I/O11+

I/O

29

I/O28+

I/O

46

I/O11-

I/O

63

I/O28-

I/O

13

I/O12+

I/O

30

I/O29+

I/O

47

I/O12-

I/O

64

I/O29-

I/O

14

I/O13+

I/O

31

I/O30+

I/O

48

I/O13-

I/O

65

I/O30-

I/O

15

I/O14+

I/O

32

I/O31+

I/O

49

I/O14-

I/O

66

I/O31-

I/O

16

I/O15+

I/O

33

VTHI

P

50

I/O15-

I/O

67

VTHI1

P

17

I/O16+

I/O

34

VTLO

P

51

I/O16-

I/O

68

VTLO1

P

68-Pin UUT I/O Data Connector, J2

 Notes for the table:

 

J1 I/O - Control Connector (68-Pin to UUT)

The following table defines the GX515x DIO to UUT control interface. This interface uses a 68-pin VHD connector.

Pin

Signal

Type

Pin

Signal

Type

Pin

Signal

Type

Pin

Signal

Type

1

GND

P

18

GND

P

35

GND

P

52

GND

P

2

N/C

 

19

OEN1

OT

36

N/C

 

53

GND

P

3

N/C

 

20

OEN2

OT

37

N/C

 

54

GND

P

4

N/C

 

21

OEN3

OT

38

N/C

 

55

GND

P

5

N/C

 

22

GND

OT

39

N/C

 

56

GND

P

6

GND

P

23

XOE1

P

40

GND

P

57

GND

P

7

N/C

 

24

XOE2

IT

41

N/C

 

58

GND

P

8

N/C

 

25

XOE3

IT

42

N/C

 

59

GND

P

9

N/C

 

26

GND

IT

43

N/C

 

60

GND

P

10

N/C

 

27

JA

IT

44

N/C

 

61

GND

P

11

GND

P

28

N/C

P

45

GND

P

62

GND

P

12

N/C

 

29

JA

IT

46

N/C

 

63

GND

P

13

N/C

 

30

N/C

OT

47

N/C

 

64

GND

P

14

SCLK

OT

31

5V

P

48

GND

P

65

GND

P

15

SSYNCCC

OT

32

5V

P

49

GND

P

66

GND

P

16

SDOUT

OT

33

VTHI

P

50

GND

P

67

VTHI

P

17

SDIN

IT

34

VTLO

P

51

GND

P

68

VTLO

P

68-Pin UUT Control Connector, J1

Notes for the table:

Signal

Description

Fail

Comparison fail, GX5950 only

I

Input

IT

Input TTL level

JA

Jump to a predefined address A Input. A low on this line will cause a jump to that address

O

Output

OENO-OEN3

IOM generated Output Enables. A low on these lines specifies the I/O group currently enabled

OT

Output TTL level

P

Power/GND

VTHI

Terminator voltage, 3.3V or 5V

SCLK
SDOUT
SDIN
SSYNC

 

Should not be connected at any time

VTHI

High terminators voltage

VTLO

Low terminators voltage

XOE0-XOE3

External Output Enable input controls for each I/O group. A low on these lines will force the specific group to disable its output drivers

 

Note: I/O Modules with single-ended signals, the ‘-‘(negated) signals and VTLO lines are connected to GND.