Rohde & Schwarz SMBV100B, Руководство пользователя

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Multi-Instrument Setups
R&S
®
SMBV100B
434 User Manual 1178.4460.02 ─ 03
8.3.2 Triggering Several Instruments with a Common Trigger Signal
Using the same trigger event on several instruments is useful to synchronize the trans-
mitted and received signals. Some test cases also require that you control the signal
generation start and determine the exact generation start time by a defined trigger
event. The signal generation start can be controlled for example by triggering the
instrument internally or externally from the DUT.
To share common trigger signal:
●
Let one R&S SMBV100B generate a dedicated signal that triggers all
R&S SMBV100B instruments.
See Example "Triggering several R&S SMBV100B instruments simultaneously"
on page 434.
●
Connect all instruments to a common external trigger source.
See Chapter 2.3.4, "Enabling and Configuring a Marker Signal" , on page 60.
Example: Triggering several R&S SMBV100B instruments simultaneously
This example shows you how to connect several R&S SMBV100B, distribute the trig-
ger signal generated by the first one (R&S SMBV100B#1) and trigger the instruments
simultaneously.
Required cabling and connections:
●
Connect the instruments in a star network, concerning the trigger signal.
That is, connect the User 5 output of the R&S
SMBV100B#1 to the User 3 input of
all other R&S SMBV100B and the R&S SMBV100B#1 itself.
●
Always use cables of the same length.
Use as short as possible cables.
T = T-connector
1 = Trigger source (R&S SMBV100B#1)
2, 3 = N number of instruments (R&S SMBV100B#2 to R&S SMBV100B#n)
User x = Connectors
<-
= Executes trigger manually
Required configurations:
●
In all R&S SMBV100B:
Generating Time-Aligned Baseband Signals