National Instruments Corporation SC-207 Series, Руководство пользователя

Страница: 19 / 91

SC-2070 Board Chapter 2
SC-207X Series User Manual 2-2 © National Instruments Corporation
Figure 2-1 shows the parts locator diagram for the SC-2070 board.
1
2
3 4
5 6
1 50-pin I/O Connector 4 General-Purpose Breadboard Area
2 Temperature Sensor Selection 5 Fuse
3 Temperature Sensor 6 Shield Ground Selection
Figure 2-1. SC-2070 Board Parts Locator Diagram
Analog Input
Each differential analog input has seven open positions for signal conditioning components. Six of
these positions are designated as resistors, and one is designated as a capacitor. The board is shipped
with jumpers in two positions for each input. The equivalent circuit of one input is shown in
Figure 2-2. The board can be used when the MIO-16 board is configured for both 16 single-ended
inputs and eight differential inputs. For thermocouple and other low-level applications, best results are
obtained when differential inputs are used. For specific applications illustrating signal conditioning
with both single-ended and differential inputs, refer to Applications later in this chapter.