ETC Installation Guide
Access Interface
Electrical
24 VDC is required to power the interface. Run two each 1.5 mm
2
(16 AWG)
wires (typically a black and red wire pair) from the auxiliary power source for
connection to the provided Aux Power pigtail.
Note:
Installation must follow all national and local codes for
electrical equipment. NEC Class 2 product to be wired in accordance
to NEC Article 725 and local jurisdiction requirements.
EchoConnect
The Interface connects to the EchoConnect station communication bus.
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 - see the ETC cable cross database
etcconnect.com/Support/Cable-Cross-Database
for equal alternatives) 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), with a maximum distance of
400 m (1,312 ft) between any two devices.
Note:
All control wiring should be installed and terminated by a
qualified installer and should follow standard wiring installation
practices. Leave approximately 25.4 cm (10 in) of wiring in the back
box for connection and to allow slack for future service needs.
Note:
ETC requires that all Echo stations and devices be grounded
for ESD protection. Pull an additional 2.5 mm
2
(14 AWG) wire for
grounding when control wires are not installed in grounded metal
conduit.
Access Interface
Page 2 of 7
ETC
