Measurement Computing USB-234, User Manual, Page: 27 / 29

USB-234 User's Guide Specifications
27
Screw terminal pinout
Differential mode pinout
Do not connect to terminal block pins labeled NC .
Table 15. Screw terminal pinout
Pin Signal name Pin description Pin Signal name Pin description
1 AGND Analog ground 17 DIO0 DIO bit 0
2 CH0H Analog input 0 HI 18 DIO1 DIO bit 1
3 CH0L Analog input 0 LO 19 DIO2 DIO bit 2
4 AGND Analog ground 20 DIO3 DIO bit 3
5 CH1H Analog input 1 HI 21 DIO4 DIO bit 4
6 CH1L Analog input 1 LO 22 DIO5 DIO bit 5
7 AGND Analog ground 23 DIO6 DIO bit 6
8 CH2H Analog input 2 HI 24 DIO7 DIO bit 7
9 CH2L Analog input 2 LO 25 NC No connection
10 AGND Analog ground 26 TRIG Digital trigger input
11 CH3H Analog input 3 HI 27 NC No connection
12 CH3L Analog input 3 LO 28 NC No connection
13 AGND Analog ground 29 CTR Counter input
14 AOUT0 Analog output 0 30 GND Digital ground
15 AOUT1 Analog output 1 31 + VO User voltage output
16 AGND Analog ground 32 GND Digital ground
Single-ended mode pinout
Do not connect to terminal block pins labeled NC .
Table 16. Screw terminal pinout
Pin Signal name Pin description Pin Signal name Pin description
1 AGND Analog ground 17 DIO0 DIO bit 0
2 CH0H Analog input 0 18 DIO1 DIO bit 1
3 CH0L Analog input 4 19 DIO2 DIO bit 2
4 AGND Analog ground 20 DIO3 DIO bit 3
5 CH1H Analog input 1 21 DIO4 DIO bit 4
6 CH1L Analog input 5 22 DIO5 DIO bit 5
7 AGND Analog ground 23 DIO6 DIO bit 6
8 CH2H Analog input 2 24 DIO7 DIO bit 7
9 CH2L Analog input 6 25 NC No connection
10 AGND Analog ground 26 TRIG Digital trigger input
11 CH3H Analog input 3 27 NC No connection
12 CH3L Analog input 7 28 NC No connection
13 AGND Analog ground 29 CTR Counter input
14 AOUT0 Analog output 0 30 GND Digital ground
15 AOUT1 Analog output 1 31 + VO User voltage output
16 AGND Analog ground 32 GND Digital ground