Measurement Computing PCIe-DAS1602/16 - Manual (Page 8)

PCIe-DAS1602/16 User's Guide Installing the PCIe-DAS1602/16
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If you are not using the PCIe-DAS1602/16 default settings, you will set one or more switches and jumpers
mounted on it before installing it into your computer. The factory-configured default settings are listed below.
The location of each switch and jumper are shown in Figure 2.
Figure 2. PCIe-DAS1602/16 switch and jumper locations
Before installing the PCIe-DAS1602/16 in the computer, make sure that the board is configured with the
settings that you want. Review the following information to change the default configuration of a jumper or
switch on the PCIe-DAS1602/16 board.
Board switches are covered by analog input shield
To access the channel mode switch (S1) and the A/D range select switch (S2), remove the metal analog input
shield that covers them. This shield is secured to the board with two screws.
Channel mode (S1 switch)
Use the S1 switch to set the channel mode configuration. Configure the PCIe-DAS1602/16 analog inputs for
either 8 DIFF channels or 16 SE channels.
 Use SE input mode if you have more than eight analog inputs to sample.
 Use DIFF input mode to allow for up to 10 V of common mode rejection. This mode provides better noise
immunity.
The S1 switch is factory-configured for 8 DIFF inputs, as shown in Figure 3. To configure for 16 SE channels,
set this switch to 16.
Figure 3. 16/8 channel select switch (S1) default setting (8)