Softkey

Function

Port 1

Selects test port 1

Port 2

Selects test port 2

Port 3

Selects test port 3

Port 4

Selects test port 4

2-1 (fwd)

Selects forward direction for test ports 1 and 2

1-2 (rev)

Selects reverse direction for test ports 1 and 2

1, 2 (both)

Selects both directions for test ports 1 and 2

3-1 (fwd)

Selects forward direction for test ports 1 and 3

1-3 (rev)

Selects reverse direction for test ports 1 and 3

1, 3 (both)

Selects both directions for test ports 1 and 3

4-1 (fwd)

Selects forward direction for test ports 1 and 4

1-4 (rev)

Selects reverse direction for test port 1 and 4

1, 4 (both)

Selects both directions for test port 1 and 4

3-2 (fwd)

Selects forward direction for test port 2 and 3

2-3 (rev)

Selects reverse direction for test port 2 and 3

2, 3 (both)

Selects both directions for test port 2 and 3

4-2 (fwd)

Selects forward direction for test port 2 and 4

2-4 (rev)

Selects reverse direction for test port 2 and 4

2, 4 (both)

Selects both directions for test port 2 and 4

4-3 (fwd)

Selects forward direction for test port 3 and 4

3-4 (rev)

Selects reverse direction for test port 3 and 4

3, 4 (both)

Selects both directions for test port 3 and 4