Quantum II RFID ECU
PK3724_T 05-19
7
5 Wiring the ECU
Power Leads
The ECU requires 12-24 volts AC or DC input. Two White (Non-Polarized) wire leads are provided for supplying
power to the reader. Ensure that voltage going to the ECU does not exceed 24 volts. Power supplies must be in
a separate enclosure and rated properly. Refer to your local Electrical and Building Codes.
Relay Leads
The ECU is equipped with a 5 Amp Dry Contact Relay that can be configured either Normally Open (NO) or
Normally Closed (NC).
CAUTION
WARNING
IMPORTANT
Observe all local electrical and building codes
Red relay lead = Common (COM) contact
Blue relay lead = Normally Open (NO) contact
Black relay lead = Normally Closed (NC) contact
Wire the appropriate contact (COM and either NO or NC) to the elevator call buttons. Refer to fig 10 for typical
wiring configuration.
Chassis ground Lead
The Green lead on the ECU is used for chassis ground. Connect the Green lead between one of the spade ter-
minals on the ECU PCB and one of the reader mounting screws. Refer to fig 9.
Reader connections
Reader Ribbon
Insert the reader ribbon into the ribbon connector on the ECU PCB. Observe proper orientation. The gold
contacts of the connector should mate with the gold contacts on the reader ribbon. Refer to fig 8 for proper
orientation
Reader Power
Plug the reader power Red lead into the white power port on the ECU PCB. Refer to fig 9.
