Input Signal - Keysight E4981A User Manual

Using Handler Interface
Electrical Characteristics
Figure 8-5 Circuit diagram of operation output signals of the handler interface
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Input signal

Each input signal is supplied to the cathode of the photo coupler LED. The
anode of the LED is connected to the drive source voltage.
electrical characteristics of the input signals.
diagram of the input signals. The amount of current flowing through the LED
depends on the setups of the drive source voltage and the input signal resistor.
The S1, S2, S3 switches belongs to electrical switches that can be control by
the following SCPi command :SYSTem:HANDler:TRIGger:VOLTage <para>
Table 8-6 Electrical characteristics of the handler interface input signals
Input signal
/KEY_LOCK
Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
Input vol tage [V]
LOW
EXT_TRIG
0 - 1
H andler
interface
connector
P ull-up resisters
/AL AR M
/IN D E X
/E O M
/R E AD Y _F O R _T R IG
C O M 2
Figure 8-6
Input current (LOW) [mA] (typical)
Drive source vol tage: DCV2
HIGH 5 V
2.7
DCV2
2.8
Power
Supply
Table 8-6 shows the
shows the circuit
12 V 15 V
3.6 4.4
7.0 9.0
24 V
6.3
14.5
149