Configuration - Screens and Control Fields

Control Fields on the Configuration Screens

Ref Select

This field selects the timebase reference signal to use for generating and analyzing signals.

Auto automatically selects an external reference if a signal of sufficient level is detected at the EXT REF IN.

Internal uses the Test Set’s internal timebase and ignores signals connected to the EXT REF IN connector.

External requires a valid reference signal to be connected to the EXT REF IN connector.

Operating Considerations

The front-panel REFERNCE indicators show which source is selected and whether or not the timebase is phase locked. The Test Set will not operate correctly if it is unlocked.

Locking to an external reference may take several seconds. The lower the frequency the longer it may take to lock to the signal.

Screen(s) Where Field is Present

INSTRUMENT CONFIGURE

Remote Mode

This field is reserved for use with special software that enables remote operation through a PC.

Operating Considerations

When remote mode is enabled, the information displayed on the CRT will be mirrored and sent out over the SERIAL 11 port. The incoming serial stream will be interpreted as escape-key sequences. Access to the configuration fields for serial port 11 will be limited, but serial ports 9 and 10 will not be affected.

This setting is retained when the instrument is turned off.

Screen(s) Where Field is Present

I/O CONFIGURE

Chapter 7

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Agilent Technologies 8935 series e6380a manual Ref Select, Remote Mode