Using the SCB-68 in Direct Feedthrough Mode

NI 25xx, NI 4309, NI 65xx, NI 66xx, NI 67xx, and NI 78xx, and products without analog input functionality must use direct feedthrough mode. Move the switches to the direct feedthrough mode switch setting shown in the following table.

Table 1. Direct Feedthrough Switch Setting
Switch Setting Description

1378

Direct feedthrough mode—Move switches S1, S2, S3, S4, and S5 to the positions shown at left. In this mode:

  • All 68 signals from the device connect directly to screw terminals

Refer to the following figure for a detailed diagram.

Figure 3. Direct Feedthrough Mode Switch Setting

1378