Service Information
5-8
Table 5-2
Path isolation tests
Test
no. Path isolation Test equipment locations Channels closed
1 Row 1, Col 1 to Row 2, Col 2 Row 1 and Row 2 1!1!1 and 1!2!2
2 Row 2, Col 2 to Row 3, Col 3 Row 2 and Row 3 1!2!2 and 1!3!3
3 Row 3, Col 3 to Row 4, Col 4 Row 3 and Row 4 1!3!3 and 1!4!4
4 Row 3, Col 4 to Row 4, Col 5 Row 3 and Row 4 1!3!4 and 1!4!5
5 Row 3, Col 5 to Row 4, Col 6 Row 3 and Row 4 1!3!5 and 1!4!6
6 Row 3, Col 6 to Row 4, Col 7 Row 3 and Row 4 1!3!6 and 1!4!7
7 Row 3, Col 7 to Row 4, Col 8 Row 3 and Row 4 1!3!7 and 1!4!8
8 Row 3, Col 8 to Row 4, Col 9 Row 3 and Row 4 1!3!8 and 1!4!9
9 Row 3, Col 9 to Row 4, Col 10 Row 3 and Row 4 1!3!9 and 1!4!10
Figure 5-5
Path isolation testing (guarded)
1
2
3
4
1 3456789102
Model 7012
HI
Model 617
INPUT
Model 7025
Unterminated
Triax Cable
(Red)
Banana to Banana Cable
Ground Link
Removed
Unterminated
Banana Cables
Source V and
Measure V/I
Note : Setup shown is configured
to test isolation between
row 1 column 1, and row 2
column 2.
HI
Columns
Jumpers
(1 of 4)
Rows
HL HL HL HL HL HL HL HL HL HL
H
L
H
L
H
L
H
L
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