Tektronix DMM4020 Digital-Multimeter, DMM, VFD-Multiple segment, 20000 counts CAT II 600 V DMM4020-A1 Ficha De Dados
Códigos do produto
DMM4020-A1
Operating the Meter from the Front Panel
Selecting a Measurement Function
3
3-17
Table 3-4. RS-232 Pin Out
1
2
3
4
6
7
8
9
5
eue23.eps
Pin
# Description Pin
# Description
1
+5 V OUT
2
RS-232 RXD
3 RS-232
TXD
5 RS-232
GND
6 Trigger
Out
9 Trigger
In
Figure 3-12 shows a method for using the +5 V OUT (pin 1) signal with an external
switch to trigger the Meter.
+5 V Out (Pin 1)
Trig In (Pin 9)
eue24.eps
Figure 3-12. External Trigger Circuit