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Getting Started 2
Agilent 34980A Mainframe User’s Guide 25
Annunciator Display Indicators
Display Indicator Definition
LAN Lit when communicating with the 34980A over LAN.
USB Lit when communicating with the 34980A over USB.
GPIB Lit when communicating with the 34980A over GPIB.
ABUS [1234] Indicates Analog Bus (ABus) connectivity. Normally, this shows the designated ABus connected on any
module in the mainframe. During a scan, if ABus 1 and ABus 2 are both indicated, they will be used at
some point during that scan.
When lit, an error has been generated and is in the error queue.
Rmt Indicates Remote mode is in use. Running a program puts the display into “remote” mode and disables
the front panel keys. Pressing the LOCAL button takes you out of “remote” mode and enables the front
panel keys.
Safety Interlock Indicates an ABus Safety Interlock. When lit, at least one terminal block or cable has been removed from
the D-sub connector of a module. For more information, see page 92 and the User’s Guides for the
appropriate Multiplexer Modules.
Trig Lit when the 34980A is waiting for an external or manual trigger during scans.
Indicates an over-temperature condition. When lit, one or more general purpose (34937A/34938A)
modules have reached their over-temperature limits.
ALARM (H1234L) A HI or LO alarm condition has occurred on the indicated alarms.
Alarms are enabled on the displayed channel.
Mx+B Scaling is enabled on the displayed channel. This appears on display after you have selected the scaling
function via the front panel or remote interface.
4W A 4-wire measurement is specified on the displayed channel. This appears on the display after you have
selected the 4-wire function via the front panel or remote interface.
OC Lit when Offset Compensation has been specified for a given measurement. This appears on the display
after you have selected the offset compensation function via the front panel or remote interface. For more
information, see “Offset Compensation” on page 103
*
A measurement is in progress.
HOT
ERROR