Keysight U2741A Guide D'utilisation page 44

2 Operation and Features
Star Triggering
The star trigger can only be applied when the U2741A is connected into the
U2781A modular instrument chassis. It is used to trigger multiple modular units in
the chassis.
SCPI command
TRIGger:SOURce STRG
Synchronization Status
This is to configure the synchronization of multiple units of U2741A (slave only)
when used in the U2781A modular instrument chassis. Only one master can be
assigned at a time.
SCPI command
CONFigure:SSI {NONE|SLAVe}
Refer to the Keysight U2741A Programmer's Reference for complete description
and syntax for these commands.
44 Keysight U2741A User's Guide