Fluke 271 manual Rear Panel Connectors, Clock In/Out, Vca In, Sync Out, Getting Started

Getting Started

Controls and Connections

Rear Panel Connectors

CLOCK IN/OUT

This socket operates both as an input and as an output, depending on the mode in which the instrument is being used.

shx0013f.gif

As an input it can be used either to run the instrument from an external master clock or as a synchronization input when slaved to another instrument as the master.

As an output it provides the internal master clock or the master synchronization output for another instrument as the slave.

In both modes the levels are TTL and CMOS compatible.

VCA IN

This is the modulation input for voltage controlled amplitude (VCA). +2.5 V will drive the amplitude to 100 % of its programmed value. The input impedance is approximately

6 kΩ. shx0013f.gif

Modulation is beyond the scope of this Getting Started Manual but is covered in detail in chapter 8 of the Users Manual.

SYNC OUT

This socket is used when the instrument is the master in a master-slave set-up. It provides a signal to drive the EXT TRIG front panel input of the slaved instrument.

shx0014f.gif

Master-slave operation is beyond the scope of this Getting Started Manual but is covered in chapters 12 and 13 of the Users Manual.

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