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The Model 57x/58x series surge protectors have been designed to
conform to stringent EIA/TIA TSB-40 standards as required for all
Category-5 connecting hardware. These standards specify the capaci-
tance and near end cross-talk (N.E.X.T) to insure proper operation of
ALL connected equipment. Specific test results are shown in the
tables on the following pages*.
TSB-40A COMPLIANCE TESTING RESULTS
TYPICAL NEAR-END CROSSTALK MEASUREMENT
FREQ
1-2/3-6
MHz
dB
1
82.0
4
74.0
8
69.0
10
67.0
16
63.0
20
65.5
25
62.0
31.25
56.1
62.5
46.0
100
45.0
Figure C-1. N.E.X.T. measurements for Patton Model 57x
FREQ
1-2/3-6
MHz
dB
1
77.0
4
70.0
8
67.0
10
67.0
16
62.0
20
69.0
25
59.0
31.25
57.0
62.5
51.5
100
44.0
Figure C-2. N.E.X.T. measurements for Patton Model 58x
*Note: All test results are for the Model 57x/58x alone , not including any
external patch cables that are connected to the unit.
APPENDIX C
EIA/TIA TSB-40A COMPLIANCE
SOURCE/VICTIM PAIRS
1-2/4-5
1-2/7-8
dB
dB
85.0
85.0
77.0
85.0
71.0
83.0
69.0
83.0
66.0
79.0
64.0
78.0
62.0
77.0
62.0
75.5
56.0
74.0
48.0
57.0
SOURCE/VICTIM PAIRS
1-2/4-5
1-2/7-8
dB
dB
85.0
85.0
76.0
85.0
70.0
85.0
68.0
85.0
65.0
83.0
65.0
73.0
62.0
72.0
61.0
81.0
57.0
68.0
45.0
54.0
9
3-6/4-5
3-6/7-8
dB
dB
78.0
84.0
68.0
73.0
62.8
67.0
61.0
66.0
56.0
61.0
57.0
66.0
53.0
58.0
52.0
54.6
44.5
46.0
40.5
42.0
3-6/4-5
3-6/7-8
dB
dB
79.0
83.0
68.0
73.0
62.1
67.0
61.0
66.0
57.0
61.0
58.0
63.0
53.2
58.0
51.0
55.0
45.0
46.0
42.0
41.4
4-5/7-8
SPEC
dB
dB
82.0
>65
71.0
>65
64.0
62
63.0
60
59.0
56
56.0
54
56.0
52
53.0
50
47.0
44
49.0
40
4-5/7-8
SPEC
dB
dB
81.0
>65
70.0
>65
64.0
62
62.0
60
58.0
56
56.0
54
55.0
52
53.0
50
48.0
44
49.0
40
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