Manual USB-IIRO-16 Family
5
Chapter 1: Introduction
This board is an ideal solution for adding portable, easy-to-install digital I/O to any computer with a USB port.
As a USB 2.0 high speed device it offers the fastest speed available with the USB bus, while being
compatible with both USB 1.1 and USB 2.0 ports. The board is plug-and-play allowing for quick
connect/disconnect whenever you need additional I/O on your computer.
Model Versions
16 isolated digital inputs and 16 relay outputs, enclosure, module and screw terminal board
16 isolated digital inputs only version
16 relay outputs only version
8 isolated digital inputs and 8 relay outputs version
4 isolated digital inputs and 4 relay outputs version
Each version is a different population on the same PCB. This manual primarily describes the 16 input / 16
output version. Wherever references occur to the number of inputs and number of outputs, substitute the
number of inputs and outputs with the quantity specific to the model you are considering, or have purchased.
All lesser quantity than the fully populated versions start their I/O counts from input 00, and from relay 00. So
the IIRO-8 version would be populated with inputs IN00 through IN07 and outputs OUT00 through OUT07
(RELAY 00 through RELAY 07). The IIRO-4 version would be populated with inputs IN00 through IN03 and
outputs OUT00 through OUT03 (RELAY 00 through RELAY 03). The corresponding removable screw
terminal board would also be only populated with the terminals to access the I/O on the model you
purchased.
Accessories:
Internal plug in screw termination board
(Green screw terminals = AWG 26-16)
(Gray screw terminals = AWG 28-20)
External power supply components and AC/DC adapter
Options:
-OEM
Board Only version (no enclosure or screw terminal board)
-E
Economy model (no screw terminal board)
-DIN
DIN rail mounting provision
