Instrument Function
R&S
®
SMU200A
143Operating Manual 1007.9845.32 ─ 15
AUX I/O Connector
An illustration of the AUX I/O interface is shown. The inputs are indicated by a
"depressed" pin , outputs by a non-depressed pin .
The assignment is shown in tabular form underneath the interface. The colors indicate
the signal type. A distinction is made between control signals (yellow), marker signals
(green), data (orange), freely selectable signals at the user pins (blue), ground (gray),
and unused pins (black).
If no path letter is specified, the pin is assigned to the signals of Path A. Pins with signals
from Path B are indicated by a "B" to the right of the signal name. This does not apply to
the EXT TUNE input via which the signal for external impairment of the reference fre-
quency is supplied; this impairment signal applies to both paths.
For detailed description of the AUX I/O connector, refer to chapter 1.1, "AUX I/O Con-
nector", on page 837.
User Connector Signal
Selects the signal for USER interface 1 (BNC), 2, 3 or 4 (AUX I/O). The signals which are
available for selection are given in table 5-1.
SCPI command:
:OUTPut:USER<ch>:SOURce on page 557
Polarity (No Signal Marker)
Selects the polarity of the No Signal Marker.
If Positive is selected, the signal is high (2.5 V) when the marker is active; if Negative is
selected, the signal is low (0 V).
SCPI command:
:OUTPut:BLANk:POLarity on page 554
General Instrument Settings
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