User's Manual

Pro-Guard & Uni-Guard Installation Manual

Transformer Cable Connection

Connect the three pins of the power connector to the corresponding terminals of the

transformer connector. The ground pins from both must be connected, but the 0V and 24V

terminals from the step-down transformer can be swapped to change the polarity of the

system.

3-Pin Power Connector Layout

3-Terminal Transformer

Connector Layout

Pin Function Color Pin Function Color

“N or L“

Blue/Brown 1 0V Blue/Brown

2 Ground Green w/Yellow Stripe 2 Ground Green w/Yellow Stripe

“L or N” *

Brown/Blue 3 24V Brown/Blue

(180 degrees phase switch)

* Note: Pin 1 and Pin 3 of the power connector are equivalent to former N and L

terminals for 110/220vac systems. Switching them will switch the system’s phase 180

degrees; same as former 110/220vac systems.

Step-Down Transformer Capacity

• Pro-Guard: Maximum 1 Transformer per Transmitter/Receiver pair.

• Uni-Guard: Maximum 1 Transformer per Uni-Guard.

Red

Green

Blue

Pin 1

24VAC OUTPUT

0V GND 24V

Pin 1

Brown

3-Pin Power Connector Transformer 24V Output Terminal