R&S®SML / R&S®SMV03 Utilities
1090.3123.12 E-6 4.57
Parameters of RS-232-C Interface (System – RS232)
Settings for the configuration of the RS-232-C interface can be made in the Utilities – System – RS232
submenu. The pin assignment of the interface corresponds to that of a PC.
Menu selection: Utilities – System – RS232
Fig. 4-26 Utilities – System – RS232 menu
Baud Rate
Selection of transmission rate.
IEC/IEEE-bus command :SYST:COMM:SER:BAUD 9600
Data Format
Indication of number of data bits. This value can be set to 7 or 8.
Parity
Setting of parity. This setting defines the transmission mode for the parity bit for
error protection. The following modes are available:
Odd odd parity
Even even parity
None no parity
IEC/IEEE-bus command :SYST:COMM:SER:PAR ODD
Stop Bit
Indication of number of stop bits. This value can be set to 1 or 2.
Handshake
Selection of handshake.
None No handshake
IEC/IEEE-bus command :SYST:COMM:SER:PACE NONE
:SYST:COMM:SER:CONT:RTS ON
RTS/CTS Hardware handshake via interface lines RTS and CTS. This setting is
to be preferred to the XON/XOFF setting if the host computer permits it.
IEC/IEEE-bus command :S
YS
T:COMM:SER:CONT:RTS RFR
XON/XOFF Software handshake via ASCII codes 11h <XON> and 13h <XOFF>.
This setting should not be used for binary data transmission and for
baud rates higher than 9600 baud.
IEC/IEEE-bus command :SYST:COMM:SER:PACE XON
Note: To avoid problems in the binary data tranmission, the RS-232-C
interface should be set to 8 data bits, no parity and 1 stop bit. This
data format is in line with the provisional IEEE P1174.
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