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Pin out for Universal fixture plate. Pins are listed in clockwise order starting at pin 1.



fixPins.XLS Univ_RFSchematic(1).pdf

Male connector
Female Connector
Male connector
Female Connector
Pin#
Resource
Pin#
Resource
Pin#
Resource
Pin#
Resource
1
1
GND
25
DB11
25
DP10
2
2
V5S
24
GND
24
DP9
3
3
V8F
23
NC
23
DP6
4
4
V8S
22
S/N
22
DP5
5
+12V
5
DP3
21
-12V
21
GND
6
NC
6
DP4
20
20
GRD
7
NC
7
GND
19
19
V6S
8
DB9
8
GRD
18
18
V6F
9
DB12
9
DP13
34
34
V5F
10
DB15
10
DP14
35
35
V7F
11
GND
11
VM1
36
36
V7S
12
DB3
12
VM1N
37
VI RTN
37
DP1
13
DB6
13
VM4
38
+28V
38
DP2
14
DB8
14
VM4N
39
NC
39
DP7
15
VI3S
15
40
NC
40
DP8
16
VI2S
16
41
DB10
41
DP11
17
VI3
17
-5V
42
DB13
42
DP12
33
RS (VI RS)
33
43
DB16
43
GREF
32
VI RTN
32
44
DB1
44
GRD
31
VI1
31
45
DB4
45
VM3
30
GND
30
GND
46
DB7
46
VM3N
29
DB5
29
VM2N
47
VI1
47
28
DB2
28
VM2
48
VI RTN
48
27
GND
27
DP16
49
VI2
49
26
DB14
26
DP15
50
VI1S
50
5V



Intentionally shorted pins (listed in bold)
  1. VI RTN - Pins 32, 37, 48
  2. VI 1 - Pins 31 and 47

To retrofit the -5V and +5V
  1. Locate unattached wires closest to pin 50. There should be 10 connected and tie-wrapped together.
  2. Cut the tie wrap and separate the black and white wires from the rest.
  3. Route the black and white wires over to the SPDT side of the fixture.
  4. Attach the black wire to the +5V (pin 7) of the switch connector (not header) by using the special amps tool.
  5. Attach the white wire in the same manner to pin 2 of the connector. This will attach it to -5V.

To retrofit to older tester configurations (Gen I and II)
  1. If the tester has an I_Drive capability (older tester) and the fixture is of new vintage then the I_Drive pin is grounded by the fixture. Clip Pin#32 on header#1 on the fixture bottom board.


50 Pin Dsub Connector Mapping:




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