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Testhead
Pogo Ring 3 Bottom Board
Y0003ABx Bottom Board
Special Notes
Pogo Pin
H#
Pin#
Description
H#
Pin#
Description
1
0
1
CBIT1
2
1
CB1
2
0
2
CBIT2
2
2
CB2
3
0
3
CBIT3
2
3
CB3
4
0
4
CBIT4 - 100k
2
4
CB4
5
0
5
CBIT5 - CLK
2
5
CB5
6
0
6
CBIT6 - WD
2
6
CB6
7
0
7
CBIT7 - STB
2
7
CB7
8
0
8
CBIT8 - RD
2
8
CB8
9
0
9
-5V
2
9
-5V
10
0
10
+5V
2
10
+5V
11
1
1
VCC RETURN
2
11
VRTN
Chassis gnd thru power supply board
12
1
2
-12V
2
12
-12V
13
1
3
+12V
2
13
+12V
14
1
4
+28V
2
14
+28V
15
1
5
FIXTURE S/N
2
15
S/N
16
1
6
SPARE
2
16
SP
Testhead pogo pin is removed
3AB board H2 pins 17-20 are no connect
17
1
7
HI C3 SENSE
3
3
V3S
18
1
8
HI C2 SENSE
3
6
V2S
19
1
9
HI C RETURN SENSE
3
8
RS
Defines gnd for the VIs. S/B connected to gnd at the DUT. Hi impedance input.
20
1
10
HI C1 SENSE
3
10
V1S
21
2
1
SHIELD21
2
21
GND
Chassis gnd thru DB9-16 board (VI-M5)
22
2
2
OP1 (DB9)
2
22
DB9
23
2
3
OP2 (DB10)
2
23
DB10
24
2
4
OP3 (DB11)
2
24
DB11
25
2
5
OP4 (DB12)
2
25
DB12
26
2
6
OP5 (DB13)
2
26
DB13
27
2
7
OP6 (DB14)
2
27
DB14
28
2
8
OP7 (DB15)
2
28
DB15
29
2
9
OP8 (DB16)
2
29
DB16
30
2
10
SHIELD30
2
30
GND
Chassis gnd thru DB9-16 board (VI-M5)
31
3
1
SHIELD31
2
31
GND
Chassis gnd thru DB1-8 board (VI-M1)
32
3
2
DB1
2
32
DB1
33
3
3
DB2
2
33
DB2
34
3
4
DB3
2
34
DB3
35
3
5
DB4
2
35
DB4
36
3
6
DB5
2
36
DB5
37
3
7
DB6
2
37
DB6
38
3
8
DB7
2
38
DB7
39
3
9
DB8
2
40
DB8
40
3
10
SHIELD40
2
39
GND
Chassis gnd thru DB1-8 board (VI-M1)
41
4
1
SHIELD41
1
1
GND
Chassis gnd thru VCC5-6 board (VCC-M7)
42
4
2
VCC5 FORCE
1
2
V5F
43
4
3
VCC5 SENSE
1
4
V5S
44
4
4
VCC6 FORCE
1
3
V6F
45
4
5
VCC6 SENSE
1
6
V6S
46
4
6
VCC7 FORCE
1
5
V7F
47
4
7
VCC7 SENSE
1
8
V7S
48
4
8
VCC8 FORCE
1
7
V8F
49
4
9
VCC8 SENSE
1
10
V8S
50
4
10
SHIELD50
1
9
GND
Chassis gnd thru VCC7-8 board (VCC-M11)
51
5
1
SHIELD51
1
12
GRD
Chassis gnd thru DP1-8 relay board (VCC-M10)
52
5
2
DP1
1
11
DP1
53
5
3
DP2
1
14
DP2
54
5
4
DP3
1
13
DP3
55
5
5
DP4
1
16
DP4
56
5
6
DP5
1
15
DP5
57
5
7
DP6
1
18
DP6
58
5
8
DP7
1
17
DP7
59
5
9
DP8
1
20
DP8
60
5
10
SHIELD60
1
19
GND
Chassis gnd thru DP1-8 relay board (VCC-M10)
61
6
1
SHIELD61
1
22
GRD
Chassis gnd thru DP9-16 relay board (VCC-M2)
62
6
2
DP9
1
21
DP9
63
6
3
DP10
1
24
DP10
64
6
4
DP11
1
23
DP11
65
6
5
DP12
1
26
DP12
66
6
6
DP13
1
25
DP13
67
6
7
DP14
1
28
DP14
68
6
8
DP15
1
27
DP15
69
6
9
DP16
1
30
DP16
70
6
10
GND SENSE70
1
29
GREF
Defines gnd for all VCC and VMeas. Hi impedance input. S/B grounded at DUT
71
7
1
SHIELD71
1
32
GRD
Chassis gnd thru VMeas board (VCC-M1)
DO NOT USE THIS PIN
This pin is cut on all standard bottom plates.
ClippedPin.JPG
72
7
2
VMEAS1
1
31
VM1
73
7
3
VMEAS1N
1
34
VM1N
74
7
4
VMEAS2
1
33
VM2
75
7
5
VMEAS2N
1
36
VM2N
76
7
6
VMEAS3
1
35
VM3
77
7
7
VMEAS3N
1
38
VM3N
78
7
8
VMEAS4
1
37
VM4
79
7
9
VMEAS4N
1
40
VM4N
80
7
10
SHIELD80
1
39
GND
Direct to Chassis. Pin is raised on pogo ring
HC1
HI CURRENT 3
3
9
VI3
3AB board tied to HC1 and H3 pin 9
HC2
HI CURRENT 2
3
7
VI2
3AB board tied to HC2 and H3 pin 7
HC3
ANALOG RET
GND
Direct to chassis. 3AB board tied to mounting screw.
HC4
HI CURRENT RET
3
4,5
VI RTN
Chassis gnd thru VI boards. S/B i return path for VIs. 3AB board tied to HC4 and H3 pins 4&5.
HC5
HI CURRENT 1
3
1,2
VI1
3AB board tied to HC5 and H3 pins 1&2

Notes:
1. If the option does not exist, the corresponding ground may not be present. For example, the gnd thru the VCC7-8 board will only be present if the system contains VCC7 and 8.


The following diagram is the 10-pin header on the fixture power board inside the testhead

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