Instrument Function
R&S
®
SMU200A
141Operating Manual 1007.9845.32 ─ 15
Table 5-1: USER Connector Signals
Signal Description
"Marker 4" A broad selection of suitable marker signals is offered in the marker
menus of the "Baseband" block. In addition, they can be freely config-
ured in the "Custom Dig Mod > Control List Editor" and "GSM/EDGE >
Slot Marker Editor". The selected markers are activated when switching
on the "Baseband" block. When using markers defined in a control list
("Marker" = "CList") the related control list must be loaded in addition
("Custom Dig Mod").
"CW Mode Out" This signal marks the CW mode in which digital modulation ("Custom
Dig Mod") is deactivated and the RF signal is output in unmodulated
form. The CW signal is defined in a control list and activated by loading
the control list and setting the "Modulation<-> CW Switching State" to
On in the "More" submenu.
With standards where it is possible to change between various modu-
lation modes, the signal indicates the active modulation mode (standard
GSM: signal high (1) = modulation mode GMSK and signal low (0) =
modulation mode 8PSK EDGE). In this cases, the signal is generated
automatically when the standard is switched on.
"No Signal (Blank) Marker" This signal marks the blank time in the List mode. The signal is generated
automatically when the list mode is switched on.
"HOP" This signal marks the hop trigger for frequency hopping in the List mode
for "Custom Digital Mod". The hop signal is defined in a control list and
activated by loading the control list in the "Custom Dig Mod" menu.
"Trigger" This signal marks the trigger event caused by the selected trigger signal
(internally or externally).
Separate trigger signals are available for Path A and B.
The trigger is defined in the respective trigger submenu of the "Base-
band" block menus.
Additional signals for Path B are available in the case of two-path instruments. The cor-
responding signals for Path A are applied at the pins of the "AUX I/O" interface and at
the BNC connector CLOCK.
General Instrument Settings
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