RIGOL MSO/DS1000Z Series - Manual (Page 161)

Chapter 7 Digital Channel RIGOL
MSO1000Z/DS1000Z User’s Guide 7-5
the desired threshold.
Press High Type to open the threshold selection list to select the threshold of
D15-D8. The selectable preset values include TTL (1.40 V), CMOS (2.50 V), ECL
(-1.30 V), PECL (3.70 V), LVDS (1.20 V) and 0V. You can also press D15-D8 and use
to set the desired threshold.
To Set the Label
You can set another label for each digital channel using the following two methods to
easily distinguish the digital channels.
 Use preset labels
Press Select CH to select the digital channel (any channel of D0-D15) that
needs to set a label. Press Preset to select ACK, AD0, ADDR, BIT, CAS, CLK, CS,
DATA, HALT, IN, INT, LOAD, MISO, MOSI, NMI, OUT, PAS, PIN, RDY, RST, RX, TX
or WR.
 Input a label manually
Press Label Edit to enter the label input interface to input a label manually. For
the input method, refer to the introduction in " Channel Label".
Press Clear to delete the label of the current channel.
Probe Calibration
You can calibrate the digital probe via the oscilloscope to reduce the measurement
error of the digital signal. Connect RPL1116 digital probe to the oscilloscope and
make sure that no signal is connected to the digital probe. Press Probe-Cal  Start
to start calibrating the zero point of the digital probe. Press Exit to exit the
calibration.
Note: Before calibrating the probe, please make sure that there is no signal input
into the connected digital probe.
Digital Channel Delay Calibration
When using the oscilloscope for actual measurement, the transmission delay of the
probe cable may cause relatively larger error (zero offset). Zero offset is defined as
the offset of the crossing point of the waveform and threshold level line relative to
the trigger position. You can set a delay time to calibrate the zero offset of the digital
channels.