ETC Installation Guide
Contact and Demand Response Interfaces
Echo Contact and Demand Response Interfaces
Page 2 of 8
ETC
Prepare for Installation
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
2
) wires (typically black and red wire pair).
Note: Installation should follow all local codes and standard
electrical practices.
Note: 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.
