ADLINK LPCI-7230 - Manual (Page 49)

Operation Theory 41
4 Operation Theory
4.1 Isolated Digital Input Circuits
The isolated digital output is an open collector transistor output.
The input can accept voltages of up to 24 V. The input resisters on
PCI-7230/7233, cPCI-7230 and LPCI-7230/LPCIe-7230 are
1.2 K
Ω
. The connection between outside signal and PCI-7230/
7233, cPCI-7230 and LPCI-7230/LPCIe-7230 are shown below.
Figure 4-1: Input circuits of 7230 and 7233 series
1.2K Ohm
Isolated Input
EICOM
GND
1.2K Ohm
Isolated Input
EICOM
GND