Measurement Computing USB-1024LS - Manual (Page 12)

USB-1024LS User's Guide Functional Details
Pin 1 Pin 20
Pin 21 Pin 40
Figure 3-2. USB-1024LS screw terminal pin numbers
Screw terminal – pins 1-20
The screw terminals on the top edge of the USB-1024LS (pins 1 to 20) provide the following connections:
! Eight digital I/O connections ( Port C0 to Port C7 )
! One counter connection ( CTR )
! Five ground connections ( GND )
Screw terminal – pins 21-40
The screw terminals on the bottom edge of the USB-1024LS (pins 21 to 40) provide the following connections:
! 16 digital I/O connections ( Port A0 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
3-2