ETC Installation Guide
Contact and Demand Response Interfaces
the terminal labeled “+”.
4.
Secure the screws firmly onto each wire.
Connect EchoConnect
1.
Strip 9-10 mm (3/8 in) of insulation from the bare end of the Belden
8471 (or equivalent) wires and the ESD ground wire.
2.
Loosen the three screw terminals (ground, -, +) on the EchoConnect
terminals.
3.
Insert the data + wire (white is typical) into the terminal labeled “+”,
insert the data - wire (black is typical) into the terminal labeled “-”, and
insert the ground wire (green/yellow is typical) into the terminal
labeled
.
4.
Secure the screws firmly onto each wire.
Connect Input Wiring (Input Interface and Demand
Response)
Dry Contact Input
1.
Strip 9-10 mm (3/8 in) of insulation from each wire.
2.
Loosen the two terminals (“In” and “V out”).
3.
Insert one wire into each terminal, and then secure the screws firmly
onto each wire.
Wet Contact Input
For a wet contact input into the Contact Input Interface, you must terminate
to both the “In” and the negative “-” terminal of the 24 VDC auxiliary input.
The “V out” terminal will not be used for this termination.
1.
Strip 9-10 mm (3/8 in) of insulation from each wire.
2.
Loosen the “In” terminal for the contact input and insert the po
contact voltage wire.
3.
Terminate the contact return wire into the negative “-” terminal of the
24 VDC input. Alternative wiring termination methods may be
required to accommodate multiple terminations.
4.
Secure the screws firmly onto each wire for all terminals.
Connect Output Wiring (Output Interface only)
1.
Strip 9-10 mm (3/8 in) of insulation from each wire.
2.
Determine the type of output required, normally open (NO) or normally
closed (NC), and then loosen the respective output and COM
terminals.
3.
Insert the common wire into the “COM” terminal and the output wire
into the respective “NO” or “NC” terminal.
4.
Secure the screws firmly onto each wire.
Contact and Demand Response Interfaces
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ETC
