Softkey

Function

2-1 (S21)

Selects test port 2 (input) and test port 1 (output); Corresponds to the determination of S21

3-1 (S31)

Selects test port 3 (input) and test port 1 (output); Corresponds to the determination of S31

4-1 (S41)

Selects test port 4 (input) and test port 1 (output); Corresponds to the determination of S41

1-2 (S12)

Selects test port 1 (input) and test port 2 (output); Corresponds to the determination of S12

3-2 (S32)

Selects test port 3 (input) and test port 2 (output); Corresponds to the determination of S32

4-2 (S42)

Selects test port 4 (input) and test port 2 (output); Corresponds to the determination of S42

1-3 (S13)

Selects test port 1 (input) and test port 3 (output); Corresponds to the determination of S13

2-3 (S23)

Selects test port 2 (input) and test port 3 (output); Corresponds to the determination of S23

4-3 (S43)

Selects test port 4 (input) and test port 3 (output); Corresponds to the determination of S43

1-4 (S14)

Selects test port 1 (input) and test port 4 (output); Corresponds to the determination of S14

2-4 (S24)

Selects test port 2 (input) and test port 4 (output); Corresponds to the determination of S24

3-4 (S34)

Selects test port 3 (input) and test port 4 (output); Corresponds to the determination of S34