About The I/O Bus Connectors; Installation - Unitronics Uni-I/O UIA-0800NH Installation Manual

Cover
7 Inputs 6-7
8 Inputs 4-5
9 Input LEDs (4-7)
10 Input LEDs (0-3)
11 Status LED
 Refer to the module's specification sheet for LED indications.
N
OTE
12 Module door
13 Screw holes

About the I/O Bus Connectors

The I/O Bus connectors provide the physical and electrical connection points between
modules. The connector is shipped covered by a protective cover, protecting the connector
from debris, damage, and ESD.
The I/O Bus - Left (#4 in diagram) can be connected to either a CPU-for-Panel, a
Uni-COM™ module, to another Uni-I/O™ module or to the End Unit of a Local Expansion
Kit.
The I/O Bus - Right (#6 in diagram) can be connected to another I/O module, or to the
Base Unit of the Local Expansion Kit.
Caution  If the I/O module is located last in the configuration, and nothing is to be
connected to it, do not remove its Bus Connector Cover.

Installation

 Turn off system power before connecting or disconnecting any modules or devices.
 Use proper precautions to prevent Electro-Static Discharge (ESD).
Installing a Uni-I/O™ Module onto a UniStream
The DIN-rail type structure on the back of the panel provides the physical support for
N
OTE
the Uni-I/O™ module.
1. Check the unit to which you will connect the Uni-I/O™ module to verify that its Bus
Connector is not covered.
If the Uni-I/O™ module is to be the last one in the configuration, do not remove the
cover of its I/O Bus Connector - Right.
Unitronics
Input connection points
Red LEDs
Red LEDs
Tricolor LED, Green/Red/Orange
Shipped covered with protective tape to prevent the door from
being scratched. Remove tape during installation.
Enable panel-mounting; hole diameter: 4mm (0.15").
®
HMI Panel
Uni-I/O™
3