Measurement Computing USB-CTR04 - Manual (Page 23)

USB-CTR04 User's Guide Specifications
Signal connector
Table 11. Screw terminal specifications
Parameter Specification
Connector type Screw terminal
Wire gauge range 16 AWG to 30 AWG
Screw terminal pinout
Table 12. Screw terminal pinout
Pin Signal name Pin description Pin Signal name Pin description
1 C0IN Counter 0 input 28 N/C No connection
2 C0GT Counter 0 gate 29 N/C No connection
3 GND Digital ground 30 GND Digital ground
4 C0O Counter 0 output 31 N/C No connection
5 C1IN Counter 1 input 32 N/C No connection
6 C1GT Counter 1 gate 33 N/C No connection
7 GND Digital ground 34 GND Digital ground
8 C1O Counter 1 output 35 N/C No connection
9 C2IN Counter 2 input 36 N/C No connection
10 C2GT Counter 2 gate 37 N/C No connection
11 GND Digital ground 38 GND Digital ground
12 C2O Counter 2 output 39 N/C No connection
13 C3IN Counter 3 input 40 N/C No connection
14 C3GT Counter 3 gate 41 N/C No connection
15 GND Digital ground 42 GND Digital ground
16 C3O Counter 3 output 43 N/C No connection
Empty Empty
17 DIO0 DIO bit 0 44 TMR0 Timer 0 output
18 DIO1 DIO bit 1 45 TMR1 Timer 1 output
19 DIO2 DIO bit 2 46 GND Digital ground
20 DIO3 DIO bit 3 47 TMR2 Timer 2 output
21 GND Digital ground 48 TMR3 Timer 3 output
22 GND Digital ground 49 TRIG Trigger input
23 DIO4 DIO bit 4 50 GND Digital ground
24 DIO5 DIO bit 5 51 CLKI External clock input
25 DIO6 DIO bit 6 52 GND Digital ground
26 DIO7 DIO bit 7 53 CLKO Internal clock output
27 GND Digital ground 54 +VO User voltage output
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