162
Appendix D
Caring for Connectors
Making Connections
To reiterate the main do’s and do not’s detailed previously:
•
Avoid holding the wrench tightly, in such a way that the handle is not pivoted
but simply pushed downward the same amount throughout its length. If this is
done, an unlimited amount of torque can be applied.
•
Hold the wrench at the same point near the end of the handle every time, and
always in the same orientation. Whenever possible, begin tightening the
connection with the wrench held horizontally
Disconnection
Disconnect connectors by first loosening the connector nut that was tightened in
order to make the connection. If necessary, use the torque wrench or an open-end
wrench to start the process, but leave the connection finger tight. At all times
support the devices and the connection to avoid putting lateral (bending) force on
the connectors.
Complete the disconnection by disconnecting the connector nut completely.
NOTE
Never disconnect connectors by twisting one connector or device out of the other as
one might remove a screw or a light bulb. This is extremely harmful and connector
Table D-2
Recommended Torque Settings
Type
Description
Precision
7mm
12 lb-in (136 N-cm.)
Precision
3.5mm
8 lb-in (90 N-cm)
SMA
5 lb-in (56 N-cm) Use the SMA wrench to connect male
SMA connectors to female precision 3.5min connectors.
Connections of male precision 3.5mm. connectors to female
SMA connectors can be made with the precision 3.5mm
torque wrench (8 lb-in).
Type-N
Type-N connectors may be connected finger tight. If a
torque wrench is used, 12 lb-in (136 N-cm) is
recommended.
Содержание NFA Series
Страница 25: ...13 2 Test Descriptions This chapter descibes each test required for calibration and performance verification...
Страница 114: ...104 Chapter3 Technical Specifications General Specifications...
Страница 126: ...116 AppendixA Model N8973A Test Records Measurement Jitter Test Record...
Страница 138: ...128 AppendixB Model N8974A Test Records Measurement Jitter Test Record...
Страница 152: ...142 AppendixC Model N8975A Test Records Measurement Jitter Test Record...
Страница 178: ...168 AppendixD Caring for Connectors Principles of Microwave Connector Care...
Страница 184: ...174 Index Index...