ETC ECII Installation Guide

ETC Installation Guide

Contact Input Interface Demand Response Interface Contact Output Interface

Contact and Demand Response Interfaces

Overview

The Unison Echo® Contact and Demand Response Interfaces are DIN rail
mounted devices that are available in the following configurations:

• Input Interface - accepts four momentary or maintained closures to
trigger control actions within an Echo control system.

• Demand Response Interface - accepts four maintained closures to
trigger demand response within an Echo control system.

• Output Interface - provides four normally open or normally closed
output relays controlled by actions in the Echo control system.

Custom Configuration

This document guides you through the installation and basic local
configuration settings of the interface devices.

For more detailed information about custom configuration options available
using EchoAccess

®

, reference the EchoAccess Mobile App integrated help

system.

Note:

To use the configuration settings applied using
EchoAccess, the unit must be placed in Custom
configuration mode. Reference Set Configuration Mode.

Accessory Kit

ETC offers a Low Voltage DIN rail Cover Kit (ETC part number 7186A1218)
that allows installation of a Contact Interface to a 4” (10 cm) junction box
(provided by others). Contact ETC for ordering details.

Corporate Headquarters  Middleton, Wisconsin, USA  Tel [phone]
Service (Americas)
London, UK  Tel [phone]  Service: (UK) [e-mail]
Rome, IT
Holzkirchen, DE  Tel [phone]  Service: (DE) [e-mail]
Hong Kong
Web: etcconnect.com
specifications subject to change.
7186M2144  Rev B  Released 2018-04



[e-mail]



Tel [phone] Service: (UK) [e-mail]

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Tel [phone]  Service: (Asia) [e-mail]



© 2018 Electronic Theatre Controls, Inc. 



ETC intends this document to be provided in its entirety.

Product information and

ETC Installation Guide

Contact and Demand Response Interfaces

Prepare for Installation

Note:

Installation should follow all local codes and standard
electrical practices.

Ambient Environment

For indoor, commercial controls use only. Supports plenum rating.

• Operating temperature 0-50°C, 0-95% non-condensing humidity.

Compliance

• UL/cUL listed, supporting use in a plenum space

• CE compliant

• WEEE marked

For use with ETC dimming and relay products.

Control Requirements

EchoConnect

Echo interface devices require EchoConnect®, Belden 8471 (or equivalent)
plus one ESD ground wire, supporting control signal between the device
and the connected Echo control system.

EchoConnect is a bidirectional protocol that uses one pair of wires (data+
and data-). ETC recommends using Belden 8471 (or approved equal) Class 2
wire.

The total combined length of an EchoConnect wire run (using Belden 8471,
or equal) may not exceed 1,640 feet (500 m).

Electrical Requirements

Echo interface devices require 24 VDC (Class 2) external power in addition
to EchoConnect requirements. This auxiliary power is provided to the input
connector by an external supply. The unit draws a maximum of 40mA
during normal operation.

This connection is provided on a two position terminal, labeled 24 VDC, and
accepts 24-12 AWG (0.2-4 mm

Note:

Echo Contact and Demand Response Interfaces Page 2 of 8 ETC

NEC Class 2 product are to be wired in accordance with
NEC Article 725 and local jurisdiction requirements.

All power and control wiring should be installed and
terminated by a qualified installer and should follow
standard wiring installation practices.

2

) wires (typically black and red wire pair).

ETC Installation Guide

1: Ensure the section of DIN rail to be used is mounted

securely according to the manufacturer’s
requirements. DIN rail is provided by others.

2: Hook the bottom of the Echo interface under the lower

DIN rail as shown.

3: Pivot the interface up and depress until the top clip

seats completely onto the DIN rail.

Contact and Demand Response Interfaces

Input and Demand Response Interface Wire Terminations

The Input and Demand Response Interfaces provide four sets of terminals
(“In” and “V out”) for connection to a momentary (Input Interface only) or
maintained contact input. Terminals accept 24-12 AWG (0.2 mm
wire.

Each input supports wet or dry contact closures and includes a related
onboard LED to indicate contact status.

2

-4 mm2)

Note:

Output Interface Wire Terminations

The Contact Output Interface provides four sets of terminals (normally open
“N.O.”, normally closed “N.C.”, and common “COM”) for connection of
output relays. Terminals accept 24-12 AWG (0.2 mm

Note:

Each output includes a corresponding onboard LED to indicate the normally
open status of the relay.

Installation

Install to DIN rail

Input terminals accept 3 - 24 VDC, and support 2,000
feet (610 m) of 18 AWG (1 mm

2

) wire (round trip wire

to the device) when using 24 VDC.

2

- 4 mm2) wire.

Each output is rated for 2A at 30 VAC or 30 VDC.

3

2

Echo Contact and Demand Response Interfaces Page 3 of 8 ETC