Screw terminal wiring, Screw terminal – pins 1 to 20, Screw terminal – pins 21 to 40 – Measurement Computing USB-1024HLS User Manual
Page 12: Main connector and pin out, Screw terminal wiring -2, Main connector and pin out -2
USB-1024HLS User's Guide
Functional Details
Screw terminal wiring
The USB-1024HLS has two rows of screw terminals—one row on the top edge of the housing, and one row on
the bottom edge. Each row has 20 connections. Pin numbers are identified here.
Figure 3-2. USB-1024HLS screw terminal pin numbers
Screw terminal – pins 1 to 20
The screw terminals on the top edge of the USB-1024HLS (pins 1 to 20) provide the following connections:
!
Eight digital I/O connections (
Port C0
to
Port C7
)
!
One counter connection (
CTR
)
!
Two power connections (
USB +5 V
)
!
Three pull-up and pull-down connections (
Port A Pull-up/Pull-down
,
Port B Pull-up/Pull-down
and
Port
C Pull-up/Pull-down
)
!
Six ground connections (
GND
)
Screw terminal – pins 21 to 40
The screw terminals on the bottom edge of the USB-1024HLS (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 (
USB +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