Operating Power; Figure 19 Ac Power Wiring - Mircom QX-mini Installation And Operation Manual

3.4

Operating Power

The QX-mini can operate on either 120VAC or 240VAC on the AC mains and battery power
when there is a drop in or complete loss of electrical power. For more information, see section
12.0 Appendix B: Power Supply & Battery Calculations.
3.4.1 AC Power
Connect the AC power (Blue and Black wires) to P1 and P2 on the board.
i
Note:
EARTH
GROUND
LUG
120 VAC
To AC Input
black
white
green
From AC
Mains

Figure 19 AC power wiring

1. Ensure that AC mains are wired to proper transformer screw terminals.
2. Ensure Earth Ground Lug is connected to backbox via the green wire.
3. On the opposite side of the transformer, connect the black and blue wires to either P1
and P2 terminals on the main board.
i
Note:
48
Terminal Polarity does NOT matter for AC power. Wire order is not relevant for
Transformer Input.
Bottom of QX-mini or QX-mini-BP Board
brown
black
green
white with
blue stripe
ALWAYS route the AC Mains through the dedicated AC Power Knockout and
conduit.
P1
red
blue
Signal
Yeo Heung
Transformer Transformer
240V Yellow wire
Brown wire
Red wire
120V Black wire
White with
Black wire
Neutral
blue strip wire
Installation
P2