Getting Started
R&S
®
SMW200A
48User Manual 1175.6632.02 ─ 30
SMA connectors for 1 GHz reference signals.
The external reference is used for both paths.
How to: Chapter 3.1.11, "Connecting to REF IN/REF OUT", on page 35
USER x
BNC multipurpose connectors for defining input signals and output signals.
Table 3-10 lists the signals assigned to the USER x connectors in the default instru-
ment state.
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 A
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 12.2, "Configuring Local and Global Connectors", on page 714.
EFC
BNC connector for input of an EFC (external frequency control) signal for electronic
tuning of the internal reference frequency.
See Chapter 8.5, "Reference Oscillator", on page 473.
LO IN/LO OUT
Option: R&S SMW-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
How to: Chapter 3.1.10, "Connecting to LO In/Out", on page 35
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 SMW. To set up
the connection, use high-quality shielded cables. See "Cable selection and electromag-
netic interference (EMI)" on page 30.
See also Chapter E.1, "GPIB-Bus Interface", on page 1343 and Chapter 13, "Network
Operation and Remote Control", on page 773.
System drive (HDD/SSD)
Hard disk drive (HDD) or solid-state drive (SSD); the SSD requires option R&S SMW-
B93.
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