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28
Fig.3-22
：
Trigger Input/Output Interface Connector
13)
28V (BNC) interface connector
As shown in Fig. 3-23, this BNC (female) connector can be used to drive a noise source.
Fig.3-23
：
28V (DC) Interface Connector
3.3
Proper Use of Connector
The connector is always required in various tests of the network analyzer. Although the connectors of the calibrator, test
cable and analyzer measurement port are designed and manufactured according to the highest standards, the service
life is limited. Inevitable wear in normal operation may result in declining of performance indicators of the connector
and failure to meet measurement requirements. Proper connection of the connector in maintenance and measurement
can help to obtain accurate and repeatable results, prolong the service life of the connector, and reduce the
measurement cost. Pay attention to the following items in actual operation.
3.3.1 Connector Inspection
Wear the anti-state wristband in connector inspection. It is recommended to use the magnifying lens to check the
following items.
1)
Check whether the plating surface is worn or deeply scratched.
2)
Check whether threads are deformed.
3)
Check whether there are metal particles on the connector threads and joint surfaces.
4)
Check whether the internal conductor is bent or cracking.
5)
Check whether the connector screw is tightened properly.
Caution
Prevent damage to the instrument port in connector inspection.
During the measurement, a damaged connector may cause damage to any other good connectors connected to
it. In order to protect each interface of the network analyzer, the connector must be checked before connection.
3.3.2 Connection Method
Check and clean the connector before measurement connection. Ensure that the connector is clean and intact. Wear the
anti-static wristband in connection. The correct connection method and steps are as follows.
Step 1
As shown in following fig below, align the axes of two connectors to be interconnected, and ensure
that the pin of the male connector can concentrically slide into the jack of the female connector.