Справочник Пользователя для National Instruments PC-DIO-24

                                                                                                          

 

This chapter describes how to configure and install the PC-DIO-24, including I/O connector
signal descriptions, handshake timing diagrams, and cabling instructions.

The PC-DIO-24 contains one DIP switch and two jumpers to configure the base I/O address and
interrupts, respectively.  The PC-DIO-24 also contains one fuse to protect the +5 V power
output.  Figure 2-1 shows the location of jumper sets W1 and W2, DIP switch U2, and the
fuse F1.

The PC-DIO-24 is configured at the factory to a base I/O address of hex 210, to use interrupt
enable line PC4, and to use interrupt level 5.  These settings (shown in Table 2-1) are suitable for
most systems.  However, if your system has other hardware at this base I/O address, interrupt
enable line, or interrupt level, you need to change these settings on the PC-DIO-24 (as described
in the following pages) or on the other hardware.  Record your settings in the PC-DIO-24
Hardware and Software Configuration Form in Appendix D, Customer Communication.

Table 2-1.  PC-DIO-24 Factory-Set Jumper and Switch Settings

Hex 210
(factory setting)

U2

A9

A8

A7

A6

A5

A4

A3

A2

1 2 3 4 5 6 7 8

(The black side indicates the side that
is pushed down.)

PC4
(factory setting)

W1: Row PC4

Interrupt level 5 selected
(factory setting)

W2: IRQ5