National Instruments cFP-DO-403 用户手册

loads on the output channels, up to 2 A per channel.

1

 Connect 

the external power supply to multiple V and V

SUP

 terminals and 

to multiple C and COM terminals as needed to ensure that the 
maximum current through any terminal is 2 A or less.

Install a 2 A maximum, fast-acting fuse (F2A 250V) between the 
external power supply and the V

SUP

 terminal on each channel. 

Install a 2 A maximum, fast-acting fuse suitable for the load at the 
V

OUT

terminal. Figure 3 shows fuses where appropriate.

Table 1 lists the terminal assignments for the signals associated 
with each channel. Terminal assignments and wiring diagrams are 
also listed on the side panel of the cFP-DO-403 and under the 
slide-in card on the front of the FP-DO-403 module.

National Instruments recommends that you wire the external 
power supply to multiple V

SUP

 and COM terminals. Figure 3 

shows how to connect two output channels to loads.

If your application requires 2 A or less combined current through 
all channels of the [c]FP-DO-403, you can wire your application 
as shown in Figure 3. Install a 2 A maximum, fast-acting fuse 
(F2A 250V) between the external power supply and the V terminal 
as shown.

1  

Refer to the 

 and 

 sections for the maximum 

output current level on all channels.

Table 1.  Terminal Assignments

0

1

17

18

8

9

25

26

1

2

17

18

9

10

25

26

2

3

19

20

10

11

27

28

3

4

19

20

11

12

27

28

4

5

21

22

12

13

29

30

5

6

21

22

13

14

29

30

6

7

23

24

14

15

31

32

7

8

23

24

15

16

31

32