Rohde & Schwarz SMU200A - Bert:unit; Bler:unit; [:Source]:Input:bert:impedance; [:Source]:Input:bert:threshold

Remote Control Commands
R&S
®
SMU200A
522Operating Manual 1007.9845.32 ─ 15
BERT:STOP
stops the measurement. To start a new measurement, the BER
measurement must be switched on again by BERT:STATe ON.
Example:
EventUsage:
:BLER:UNIT <Unit>
:BERT:UNIT <Unit>
Sets the unit for the error rate display on the screen. BERT|BLER:RES always specifies
the error rate as the quotient of "Number of errors" and "Number of data items", unaffected
by this command.
Parameters:
ENGineering|SCIentific|PCT|PPM
ENGineering
The error rate is output in exponential notation with the exponent
–3 or –6.
SCIentific
The error rate is output in scientific notation, i.e. standardized to
one place to the left of the decimal.
PCT
The error rate is output in percent.
PPM
The error rate is output in parts per million.
ENG
<Unit>
*RST:
BERT:UNIT PPM
selects the unit "ppm" for the display of the error rate.
Example:
[:SOURce]:INPut:BERT:IMPedance <Impedance>
The command sets the impedance of the BERT inputs CLOCK, DATA, DATA ENABLE
and RESTART.
Parameters:
G50|G1K
G1k
<Impedance>
*RST:
INP:BERT:IMP G50
The impedance of the BERT inputs is set to 50 ohm to ground.
Example:
[:SOURce]:INPut:BERT:THReshold <Threshold>
The command sets the high/low threshold of the BERT inputs Clock, Data, Data
Enable and Restart. In the case of positive polarity, this threshold determines the point
as of which a signal is high (active) or low (inactive).
BERT and BLER Subsystems