Keysight 1143A, Руководство пользователя и сервисное руководство

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Remote Offset Input
For automatic test applications, the offset provided by the 1143A Probe
Offset Control and Power Module can be remotely controlled through a
connector on the rear panel of the module.
Remote Connection
The remote connection is through a standard 9-pin, female, D-subminiature
connector. This style is the same as that used on some personal computer
monitor cables, which provides an economical way to connect the remote
input to the controller interface on an automatic test system. The following
table gives the connections.
Table 1 Remote Input Connections
Pin Function Connector
1 N.C.
2 Probe 1 offset common
3 N.C.
4 Probe 2 offset common
5 Shield
6 N.C.
7 Probe 1 offset
8 N.C.
9 Probe 2 offset
Operating Range
The remote variable offset can be used when the Local/Remote function is set
to Remote. The remote inputs for the two probe connectors are separate.
The following conditions apply:
•
The remote offset input range is
−
10 to
+
10 Vdc. This provides a current
of
−
5 to
+
5 mAdc at the probe connector. With the 54701A Active Probe,
this provides an offset of
−
57.5 to
+
57.5 Vdc referenced to the probe tip.
•
A positive, remote voltage input provides a negative offset in the probe.
The output of the probe goes positive. A negative, remote voltage input
Operating the Power Module
Remote Offset Input
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