Signature 1100R+, User Manual, Page: 52 / 83

48
Component
Setting & Test
4-wire fixturing can be constructed in an alternating or separate method. The Alternating
method (shown below) is easy to use. With ribbon cable, you solder adjacent wires to join 4-
Wire Pairs. While easy, the c
onnector adapter pin numbers won’t match the pin numbers of the
device-under-test since only the visible point shows in the net list; however, custom test point
labels can be used to remedy the pin out numbering.
Alternating
Method
The other way to construct 4-wire fixturing is to use the separate method (shown below).
Although more difficult to construct, the separate method will create a Net List, which will
document correctly without using custom test point Labels. A 2-wire Net List can be preserved
when converting to 4-wire.
Note: Because the first scanned point of a 4-wire pair becomes the
visible point; make sure hidden point adapter(s) are in a higher-
counting “J” position than Net
List adapter(s).
Separate
Method