B&B Electronics PCI-1711 - Manual - Manual (Page 31)

Chapter 3
– 23 – PCI-1710 series User’s Manual Advantech Co., Ltd.
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Chapter
3
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
correctly. A good signal connection can avoid unnecessary and costly
damage to your PC and other hardware devices. This chapter provides
useful information about how to connect input and output signals to
the PCI-1710/1710L/1710HG/1710HGL/1711/1711L/1716/1716L via the I/
O connector.
3.2 I/O Connector
The I/O connector on the PCI-1710/1710L/1710HG/1710HGL/1711/
1711L/1716/1716L is a 68-pin connector that enable you to connect to
accessories with the PCL-10168 shielded cable.
Note:
✎ The PCL-10168 shielded cable is especially designed for the PCI-1710/
1710L/1710HG/1710HGL/1711/1711L/1716/1716L to reduce noise in the
analog signal lines. Please refer to Section 1.4 Accessories.
Pin Assignment
Figure 3-1 shows the pin assignments for the 68-pin I/O connector on
the PCI-1710/1710L/1710HG/1710HGL/1711/1711L/1716/1716L.
Note:
✎ The three ground references AIGND, AOGND, and DGND should be
used discreetly each according to its designated purpose. Actually, we
offer the individual GND pin for AI, AO and DIO to provide best signal
quality. However, all the signals on the DA&C card need to refer to the
same GND finally. So we test and choice a best point to connect
AIGND, AOGND and DGND together. In short, this is base on the
"single-point" ground principle.