Interface 150821/A4 Page 101 of 110
3.2.2 Handler Pin Assignments for Compare Operation
Table 3-10 lists the pin assignments when the handler interface on the 1730T instrument is
performing a Compare operation. The device under test is being compared against a standard of
known value. High and low limits can be defined as absolute value or percent value.
Table 3-10: Handler Pin Assignments for Compare
Pin Name Description
1 – 2 VEXT External DC voltage: 5V ~ 24V
3 – 18 X No connection
19 /EXT External trigger
20 – 21 VEXT External DC voltage: 5V ~ 24V
22 – 25 X No connection
26 – 27 COM Common Ground
28 A HI Primary parameter fail high (test value above high limit)
29 A GO Primary parameter pass (test value within limits)
30 A LO Primary parameter fail low (test value below low limit)
31 B HI Secondary parameter fail high (test value above high limit)
32 B GO Secondary parameter pass (test value within limits)
33 B LO Secondary parameter fail low (test value below low limit)
34 B NG Secondary parameter fail (No Good)
35 GO
36 – 37 X No connection
38 A NG Primary parameter fail (No Good)
39 – 42 X No connection
43 ACQ Received data, ready to accept next
44 EOT End of Test
45 – 46 COM Common Ground
47 – 48 X No connection
49 – 50 GND Chassis Ground
NOTE:
When applying VEXT, common ground (COM: pins 45 and 46) must be connected to chassis
ground (GND: pins 49 and 50).
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