Agilent Technologies HP 54601B Specifikace Strana 44

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Extended interface with hardware handshake
With the extended interface, both the software and the hardware can control
the data flow between the oscilloscope and the controller. This allows you to
have more control of data flow between devices. The oscilloscope uses the
following connections on its RS-232-C interface for extended interface
communication (on a 25-pin connector):
Pin 7 SGND (Signal Ground)
Pin 2 TD (Transmit Data from oscilloscope)
Pin 3 RD (Receive Data into oscilloscope)
The additional lines you use depends on your controller’s implementation of
the extended hardwire interface.
Pin 4 RTS (Request To Send) is an output from the oscilloscope which can
be used to control incoming data flow.
Pin 5 CTS (Clear To Send) is an input to the oscilloscope which controls
data flow from the oscilloscope.
Pin 6 DSR (Data Set Ready) is an input to the oscilloscope which controls
data flow from the oscilloscope within two bytes.
Pin 8 DCD (Data Carrier Detect) is an input to the oscilloscope which
controls data flow from the oscilloscope within two bytes.
Pin 20 DTR (Data Terminal Ready) is an output from the oscilloscope
which is enabled as long as the oscilloscope is turned on.
Programming over RS-232-C
Extended interface with hardware handshake
4–5
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