Getting started
R&S
®
SMM100A
44
User Manual 1179.1341.02 ─ 05
Table 3-10: Default configuration of the User x connectors
User connector
Direction
Default assigned signal
4
Input
"Global Trigger 2"
5
Output
"Signal Valid"
6
Not used
None
A dedicated LED indicates the connector status:
●
green: an input connector
●
yellow: an output connector
●
no light / gray: the connector is not active
See also
Chapter 11.2, "Configuring local and global connectors"
EFC
BNC connector for input of an EFC (external frequency control) signal for electronic
tuning of the internal reference frequency.
See
Chapter 7.9, "Reference oscillator"
LO In/LO Out
Option: R&S
SMM-B90
SMA connector for local oscillator input and output for phase-coherent RF signal:
●
LO In: Input of phase coherence signal
●
LO Out: Output of phase coherence signal
Chapter 3.1.10, "Connecting to LO In/Out"
IEC 625/IEEE 488
General purpose interface bus (GPIB) interface for remote control of the instrument.
The interface is in compliance with the standards IEC 625, IEEE 488 and SCPI.
Use this interface to connect a computer for remote control of the R&S
SMM100A. To
set up the connection, use high-quality shielded cables. See
tromagnetic interference (EMI)"
See also
Chapter A.3.1, "GPIB-Bus interface"
System drive (HDD)
Hard disk drive (HDD) or solid-state drive (SSD); the SSD requires option R&S
SMM-
B93.
For security reasons, the hard disk is bound to the specific R&S
SMM100A. You can
remove it from the instrument, but you cannot use it in other instruments.
See also
"Removing the system drive from the R&S
AC power supply connector and switch
Mains power switch for performing the following tasks:
●
Connecting the internal power supply to the power source
●
Disconnecting the internal power supply from the power source
Chapter 3.1.6, "Connecting to power"
Instrument tour