User Manual

RedLab 1024LS User's Guide Functional Details
13
Screw terminal wiring
The RedLab 1024LS has two rows of screw terminals – one row on the top edge of the housing, and one row on
the bottom edge. Each screw terminal bank provides 20 connections. Pin numbers are identified in Figure 4.
Figure 4. RedLab 1024LS screw terminal pin numbers
Screw terminal – pins 1-20
The screw terminals on the top edge of the RedLab 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 RedLab 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)
Pin 1 Pin 20
Pin 21 Pin 40