ETC Installation Guide
Contact and Demand Response Interfaces
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
•
cULus Listed
•
CE Compliant
•
WEEE marked
•
RoHS Compliance
For use with ETC Echo Control Systems, powered by an Echo station power
supply.
Control Requirements
EchoConnect
Echo interface devices require an ESD ground connection and EchoConnect,
which supporting control signal between the device and the connected Echo
control system. This connection is provided on a three-position terminal,
labeled EchoConnect, and accepts 0.2-4 mm
2
(24-12 AWG) wires.
EchoConnect is a bidirectional protocol that uses one pair of wires (data +
and data -) for both data and power. 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 500 m (1,640 ft).
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 40 mA during
normal operation. This connection is provided on a two position terminal,
labeled 24 VDC, and accepts 0.2-4 mm
2
(24-12 AWG) wires (typically black
and red wire pair).
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.
Contact and Demand Response Interfaces
Page 2 of 8
ETC
