6
Installing Individual Relay Cards
CX RELAY PANELS ARE MOST COMMONLY SHIPPED WITH ALL RELAY CARDS INSTALLED. If the project requires different
types of relays installed in the same panel then the relays are supplied separately and they will require eld installation. In this
application, reference the applicable Relay Installation Instruction supplied with the individual Relay Cards on how to install relays.
Caution: ALWAYS remove supply power to the Panel control Transformer prior to making any connections between relay
boards and panel processor board. Failure to do so may result in personnel injury, damage to the panel, and void its
warranty.
Connecting Panel Power
The panel is designed to operate on 120, 208, 240, or 277VAC for input voltage “2” designator or 120, 277, or 347VAC for input
voltage “3” designator. Panel input power is supplied to the multi-tap transformer located in the upper center of the panel as shown
in Figures 1(a) (b).
To connect the panel power, do the following:
1. With the power turned off, route the dedicated panel power supply leads to the transformer and connect them to the
appropriate system voltage specic leads of the transformer. A voltage lead color label is located on or adjacent to the
transformer.
2. Connect the power supply ground lead to the panel chassis grounding lug. A label indicating this ground lug is located
adjacent to the connection location.
Caution: When power is applied to the transformer, the unused transformer leads become electried. Cap unused
transformer leads with wire nuts to prevent electrical shorting.
Connecting Lighting Loads
To connect the lighting loads, do the following:
1. With the power turned off, route the lighting system line and load leads through the high voltage area of the panel shown in
Figure 1(a) (b).
2. Connect line and load leads for each lighting load to the output terminals of the appropriate relay as delineated in the
project plans and/or Panel Load Schedule. Space is provided for the circuit identication number to be written adjacent to
the terminals on each relay card.
Notice: If relays are not already installed, reference the applicable Relay Installation Instruction supplied with the
individual Relay Cards on how to install relays.
Caution: Prior to making any connections to the relay outputs, verify that none of the loads are shorted. Failure to do so
may result in personnel injury, damage to the panel, and void its warranty.
Notice: If no Panel Load Schedule exists, use the Panel Load Schedule Form supplied in the clear plastic pocket inside
the Panel Door to record the lighting circuit relay assignments while connecting the relays.
Connecting Low Voltage Inputs
To connect the low voltage inputs, do the following:
1. Bring the low voltage wiring for the contact inputs in through the knockouts in the low voltage wiring area where indicated
in Figure 1(a) (b). The CX04 Relay Panel supports 6 inputs, the CX08 Relay Panel supports 12 inputs, the CX16 Relay
Panel supports 20 inputs and the CX24 Relay Panel supports 30 inputs. Inputs are software congurable through
programming to support momentary switches, maintained switches (latching), motion sensors, or photocells. Each
Relay Card includes one low voltage input. By default, low voltage inputs located on an individual relay card are set to
be controlled by a momentary switch station associated to that specic relay. The quantity of Auxiliary Inputs available is
Dependant of the mother board(s) utilized. 2 Auxiliary Inputs for the CX04 Relay Panel, 4 Auxiliary Inputs for the CX08
Relay Panel, 2 Auxiliary Inputs for the CX16 and 3 Auxiliary Inputs for the CX24. These inputs may be connected prior to
programming. Input devices may be connected to any terminal location regardless of nal control programming.
2. Connect contact closure input devices to the input terminals using 18 AWG wire.
