Advantech PCI-1761, Руководство пользователя

Страница: 25 / 35

Advantech Co., Ltd. 21 PCI-1761 User’s Manual
www.advantech.com
Chapter
3
3 3
3
....
Chapter 3 Signal Connections
3.1 Overview
Maintaining signal connections is one of the most important factors in
ensuring that your application system is sending and receiving data cor-
rectly. A good signal connection can avoid unnecessary and costly dam-
age to your PC and other hardware devices. This chapter provides useful
information about how to connect input and output signals to the PCI-
1761 via the I/O connector.
3.2 Isolated Digital Input Connections
The PCI-1761 has 8 isolated digital input channels designated
IDI0~IDI7.
Each of isolated digital input channel accepts 10~50 V
DC
voltage
inputs, and accept bi-directional input. It means that you can apply
positive or negative voltage to an isolated input pin (Vin ). The figure
below shows how to connect an external input source to one of the
card's isolated input channels
Figure 3-1: Isolated digital input connections