Delta Controls O3 Sensor Hub 2.0 Quick Start Manual Download Page 1

This guide describes how to install and set up the O3 Sensor Hub 2.0. To set up the hub, you will need an Android 

or iOS device with the O3 Setup app installed. You can get the app from Google Play or the App Store.

Installation

Installation shall be in accordance with all applicable electrical codes and regulations.  

Connect to a Class 2 power source only.

Wiring guidelines

The sensor hub requires a 24 VDC power supply.

•  For power and I/O wiring, use 22–14 AWG 

2-conductor copper wire.

• 

For network cabling, use Cat5e or Cat6 cables.

Earth ground all devices in the same circuit at the 

power supply. Up to 30 hubs can be daisy chained 

using the ETH2 port as long as the distance between 

hubs does not exceed 100 m (330 ft).

Placement guidelines

You can mount the sensor hub to a ceiling tile, finished ceiling, or junction box.

• 

The hub should be mounted 2.4 to 4.6 m (8 to 15 ft) off the floor. 

• 

For best performance, place the hub in center of the room. Try to keep it at least 2.1 m (7 ft) away from 

windows or exterior walls.

• 

Choose a location where the motion sensor view is not obstructed by light fixtures, shelves, etc.

• 

Do not mount the hub next to hot or cold sources. 

• 

Keep the hub at least 1.3 m (4 ft) away from ceiling diffusers and other sources of airflow.

Mounting the hub

1.  If you are mounting the hub directly to the ceiling, cut 

a hole 32 mm (1¼ in.) in diameter and pull the wires 

through the hole.

2.  Remove the backplate from the hub by twisting it 

counter-clockwise.

3.  Pull the wires through the hole in the backplate.

4.  Mount the backplate to the mounting surface using 

M4 (#8) screws.

5.  Connect the power wires, I/O wiring (if present), and 

Ethernet cables to the sensor hub.

6. 

Re-attach the hub to the backplate. Line up the tabs on 

the hub with the notches on the backplate, hold the hub 

firmly against the backplate, then twist clockwise.

7. 

Turn on power to the hub. The light ring changes color  

during the boot sequence. When the light ring turns off,  

the hub is ready to use.

Rev 2.0  07/20

O3 Sensor Hub 2.0

Quick Start Guide

* 2xP models only

I/O*

xP1 GND xP2 GND

1

2

3

4

 

Power Input

24

 

GND

1

2

 

Ethernet

ETH1

ETH2

 

Reviews: