CMU Base System CMU
1100.4903.12 6.12 E-10
SYSTem:COMMunicate:SERial<1|2>[:RECeive]:BITs <DataBits> Data Bits
<DataBits>
Parameter description Def. value Default unit FW vers.
7 | 8 number of data bits 8 – V1.20
Command description
This command sets the number of data bits of the serial interface no. 1 or 2 (connectors COM 1 or COM 2). The
sum of data bits and stop bits must be equal to 9.
SYSTem:COMMunicate:SERial<1|2>[:RECeive]:STOP <StopBits> Stop bits
<StopBits>
Parameter description Def. value Default unit FW vers.
1 | 2 number of stop bits 1 - V1.20
Command description
This command sets the number of stop bits of the serial interface no. 1 or 2 (connectors COM 1 or COM 2). The
sum of data bits and stop bits must be equal to 9.
SYSTem:COMMunicate:SERial<1|2>[:RECeive]:PARity[:TYPE] <Parity> Parity
<Parity>
Parameter description Def. value Default unit FW vers.
NONE
ODD
EVEN
no parity
odd parity
even parity
NONE – V1.20
Command description
This command sets the parity of the serial interface no. 1 or 2 (connectors COM 1 or COM 2).
SYSTem:COMMunicate:SERial<1|2>:TRANsmit:PACE <Pace> Transmission Protocol
<Pace>
Parameter description Def. value Default unit FW vers.
XON
ACK
NONE
Xon/Xoff – protocol
Hardware protocol with CTS/RTS lines
No protocol set
XON – V1.20
Command description
This command sets the handshake protocol of the serial interface no. 1 or 2 (connectors COM 1 or COM 2).
Subsystem Options
The Options subsystem contains the commands for querying information on the instrument and the
available options. It corresponds to the Options tab in the Setup menu opened via the SETUP key on
the front panel.
SYSTem:OPTions:INFO? Device Info
Response
Def. value Default unit FW vers.
Example: ROHDE&SCHWARZ,CMU 200,840675/018,V1.17B 1998-11-30 – – V1.20
Command description
This command returns the information on the device comprising the manufacturer, model, serial number and
base system firmware version. This command is always a query and is equivalent to the common command
*IDN?
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