Screw Terminal Pin Out - Measurement Computing USB-4301 User Manual

USB-4301 User's Guide

Screw terminal pin out

Pin Signal Name
1 INP1
2 GAT1
3 OUT1
4 INP2
5 GAT2
6 OUT2
7 OSC
8 +5V
9 INT
10 GND
11 RSVD
12 RSVD
13 RSVD
14 RSVD
15 RSVD
16 RSVD
17 RSVD
18 +5V
19 DI CTL
20 GND
21 DI0
22 DI1
23 DI2
24 DI3
25 DI4
26 DI5
27 DI6
28 DI7
Table 13. Screw terminal pin out
Pin Description
Counter 1 input
Counter 1 gate
Counter 1 output
Counter 2 input
Counter 2 gate
Counter 2 output
Oscillator output
+5V output
Interrupt input
Ground
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
+5V output
Pull-up/down connection
Ground
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Pin Signal Name Pin Description
29 INP3
30 GAT3
31 OUT3
32 INP4
33 GAT4
34 OUT4
35 INP5
36 GAT5
37 OUT5
38 GND
39 RSVD
40 RSVD
41 RSVD
42 RSVD
43 RSVD
44 RSVD
45 RSVD
46 RSVD
47 RSVD
48 GND
49 DO0
50 DO1
51 DO2
52 DO3
53 DO4
54 DO5
55 DO6
56 DO7
25
Specifications
Counter 3 input
Counter 3 gate
Counter 3 output
Counter 4 input
Counter 4 gate
Counter 4 output
Counter 5 input
Counter 5 gate
Counter 5 output
Ground
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Ground
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output