Umdas 0802DA USB Data Acquisition Module 8 Channels of 48kHz 13-bit A/D, 16 DIO, with 2 channels of 12-bit D/A User's Manual

Screw terminal – pins 21-40
The screw terminals on the bottom edge of the (pins 21 to 40) provide the following connections:
! 16 digital I/O connections (
PortA0 to Port A7, and Port B0 to Port B7)
! One power connection (
PC+5 V)
! Three ground connections (
GND)
Main connector and pin out
Connector type Screw terminal
Wire gauge range 16 AWG to 30 AWG
20 CTR 19 SYNC 18 TRIG IN 17 GND 16 +2.5VREF 15 14 D/A OUT 1 13 D/A OUT 0 12 11 10 9 8
AGND AGND CH7 IN CH6 IN AGND CH5 IN
7 CH4 IN 6AGND 5 CH3 IN 4 CH2 IN 3AGND 2 CH1 IN 1 CH0 IN
GND 40 GND 31 PC +5 V 30 GND 29 Port A7 28 Port B7 39 Port B6 38 Port B5 37 Port B4 36 Port B3 35 Port B2 34 Port B1 33 Port B0 32 Port A6 27 Port A5 26 Port A4 25 Port A3 24 Port A2 23 Port A1 22 Port A0 21
8-channel single-ended mode pin out
20 CTR 19 SYNC 18 TRIG_IN 17 GND 16 +2.5VREF 15 14 D/A OUT 1 13 D/A OUT 0 12 11 10 9 8
AGND AGND CH3 IN LO CH3 IN HI AGND CH2 IN LO
7CH2 IN HI 6AGND 5CH1 IN LO 4CH1 IN HI 3AGND 2CH0 IN LO 1CH0 IN HI
GND 40 GND 31 PC +5 V 30 GND 29 Port A7 28 Port B7 39 Port B6 38 Port B5 37 Port B4 36 Port B3 35 Port B2 34 Port B1 33 Port B0 32 Port A6 27 Port A5 26 Port A4 25 Port A3 24 Port A2 23 Port A1 22 Port A0 21
4-channel differential mode pin out
Analog input terminals (CH0 IN - CH7 IN)
You can connect up to eight analog input connections to the screw terminal containing pins 1 to 20 (CH0 IN
through
CH7 IN.) Refer to the "Main connector and pin out" diagrams above for the location of these pins.
You can configure the analog input channels as eight single-ended channels or four differential channels. When
configured for differential mode, each analog input has 14-bit resolution. When configured for single-ended
mode, each analog input has 13-bit resolution, due to restrictions imposed by the A/D converter.
Single-ended configuration
When all of the analog input channels are configured for single-ended input mode, eight analog channels are
available. The input signal is referenced to signal ground (GND), and delivered through two wires:
! The wire carrying the signal to be measured connects to CH# IN.
! The second wire connects to AGND.
The input range for single-ended mode is ±10 V. No other ranges are supported in this mode. Figure 3-3
illustrates a typical single-ended measurement connection.
3-3
UMDAS 0802DA User's Guide Functional Details