Rohde & Schwarz CMW500 - EMI Suppression; Optional Cabling

Getting Started
R&S
®
CMW500
15User Manual 1173.9463.02 ─ 06
The tester automatically performs a system check, boots the Windows operating system
and starts the CMW application. If the previous session was terminated regularly, the
CMW application uses the last setup with the relevant instrument settings.
Once the startup procedure has been terminated, the dialog opened in the previous ses-
sion is displayed.
To shut down the instrument
► Press the standby key.
The instrument saves the current setup, closes the CMW application, shuts down the
operating system and sets the instrument to standby state. Of course you can also
perform this procedure step by step like in any Windows session.
Risk of losing data
If you switch off the running instrument using the rear panel switch or by disconnecting
the power cord, the instrument loses its current settings. Furthermore, program data may
be lost.
Always press the standby key first to shut down the application properly.
2.1.4 EMI Suppression
To suppress generated Electromagnetic Interference (EMI), operate the instrument only
while it is closed, with all shielding covers fitted. Note the EMC classification in the data
sheet.
Use appropriate shielded cables to ensure successful control of electromagnetic radiation
during operation, especially for the following connector types:
●
Output connectors REF OUT, RF COM, RF OUT: Use double-shielded RF cables
and terminate open cable ends with 50 Ω.
●
USB: Use double-shielded USB cables and ensure that external USB devices comply
with EMC regulations.
●
GPIB (IEEE/IEC 625): Use a shielded GPIB cable.
●
LAN: Use CAT6 or CAT7 cables.
2.1.5 Optional Cabling
Option R&S CMW-B661A, "Ethernet Switch H661A", is delivered with a separate ethernet
cable (patch cable).
This patch cable must be connected if an R&S CMW500 with a "Signaling Unit Wide-
band" (option R&S CMW-B300) is used for the selftest "Unit Test > IP Access Test Exter-
nal". For other applications the patch cable is only required if no Data Application Unit
(R&S CMW-B450A) is installed.
Putting the Instrument into Operation