168
Appendix E
Caring for Connectors
Mechanical Specifications
Figure E-5
Type-N connectors
Therefore the mechanical specifications of Type-N connectors give a
maximum protrusion of the female contact fingers in front of the outer
conductor mating plane and a minimum recession of the shoulder of the
male contact pin behind the outer conductor mating plane.
As Type-N connectors wear, the protrusion of the female contact fingers
generally increases, due to wear of the outer conductor mating plane
inside the female connector. This decreases the total center conductor
contact separation and should be monitored carefully.
75 Ohm Type-N Connectors
75
Ω
Type-N connectors differ from 50
Ω
Type-N connectors most
significantly in that the center conductor, male contact pin, and female
contact hole are smaller. Therefore, mating a male 50
Ω
Type-N
connector with a female 75
Ω
Type-N connector will destroy the female
75
Ω
connector by spreading the female contact fingers apart
permanently or even breaking them.
NOTE
If both 75
Ω
and 50
Ω
Type-N connectors are among those on the devices
you are using, identify the 75
Ω
Type-N connectors to be sure that they
are never mated with any 50
Ω
Type-N connectors.
MALE
FEMALE
Outer Conductor
Mating Plane
Summary of Contents for N8972A
Page 9: ...ix Declaration of Conformity N8972A ...
Page 10: ...x Declaration of Conformity N8973A ...
Page 11: ...xi Declaration of Conformity N8974A ...
Page 12: ...xii Declaration of Conformity N8975A ...
Page 19: ...Contents xix ...
Page 20: ...xx Contents ...
Page 108: ...88 Chapter2 Test Descriptions Measurement Jitter ...
Page 124: ...104 Chapter3 Technical Specifications General Specifications ...
Page 136: ...116 AppendixA Model N8972A Test Records Measurement Jitter Test Record ...
Page 148: ...128 AppendixB Model N8973A Test Records Measurement Jitter Test Record ...
Page 160: ...140 AppendixC Model N8974A Test Records Measurement Jitter Test Record ...
Page 174: ...154 AppendixD Model N8975A Test Records Measurement Jitter Test Record ...