7½ Digit Graphical Sampling Multimeter Reference Manual Section 2:
DMM7510-901-01 Rev. B / May 2015 2-13
Figure 7: Communications indicator expanded
Indicator Instrument communication
Instrument is controlled from the front panel
Instrument is communicating through a GPIB interface
Instrument is communicating through a LAN interface
Instrument is communicating using VXI-11
Instrument is communicating through a USB interface
Instrument is communicating through Telnet
Instrument is communicating through TSP-Link
Instrument is a subordinate in a TSP-Link system
Communications activity indicator
The activity indicator is located to the right of the communications indicator. When the instrument is
communicating with a remote interface, the up and down arrows flash.
Figure 8: Communications indicator
If a service request has been generated, SRQ is displayed to the right of the up and down arrows. You
can instruct the instrument to generate a service request (SRQ) when one or more events or
conditions occur. This indicator stays on until the serial poll byte is read or all the conditions that
caused SRQ are cleared.
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