Measurement Computing USB-231-OEM, User Manual, Page: 24 / 26

USB-231-OEM User's Guide Specifications
24
Environmental
Table 13. Environmental specifications (Indoor use only)
Parameter Specification
Operating temperature range 0 °C to 45 C
Storage temperature range –40 °C to 85 °C
Operating humidity range 5% to 95% RH, non-condensing
Storage humidity range 5% to 90% RH, non-condensing
Pollution degree (IEC 60664) 2
Maximum altitude 2,000 m
Mechanical
Table 14. Mechanical specifications
Parameter Specification
Dimensions (L × W × H) 98 mm × 64 mm × 12 mm (3.90 in. × 2.50 in. × 0.50 in.)
Weight 31 g (1.10 oz)
Header connectors
Table 15. Header connector specifications
Parameter Specification
Connector type One 2 × 17 0.1 in. pitch headers labeled J2
Differential mode pinout
Do not connect to connector pins labeled NC .
Table 16. J2 differential pinout
Pin Signal name Pin description Pin Signal name Pin description
1 AOUT0 Analog output 0 2 AOUT1 Analog output 1
3 AGND Analog ground 4 AGND Analog ground
5 CH3H Analog input 3 HI 6 CH3L Analog input 3 LO
7 CH2H Analog input 2 HI 8 CH2L Analog input 2 LO
9 CH1H Analog input 1 HI 10 CH1L Analog input 1 LO
11 CH0H Analog input 0 HI 12 CH0L Analog input 0 LO
13 AGND Analog ground 14 AGND Analog ground
15 D– USB differential data signals 16 VBUS USB power
17 D+ USB differential data signals 18 LED Status LED driver
19 GND Digital ground 20 DIO0 DIO bit 0
21 DIO1 DIO bit 1 22 DIO2 DIO bit 2
23 DIO3 DIO bit 3 24 DIO4 DIO bit 4
25 DIO5 DIO bit 5 26 DIO6 DIO bit 6
27 DIO7 DIO bit 7 28 NC No connection
29 TRIG Digital trigger input 30 NC No connection
31 NC No connection 32 GND Digital ground
33 CTR Counter input 34 +VO User voltage output