INSTRUCTION/INSTALLATION SHEET
HMS EZ-SCENE ALC LIGHTING INTERFACE
IS-0311 REV. A
3. Control Connections
Terminals indicated as “A” in Figure 3, provide connections for
communication to ALC controls. Branch nos. 1 - 4 can have up
to 31 ALC controls directly connected to them via up to 500 feet
of category rated cable.
Note: Part no. 364806-01 provides a single ALC
communication branch. Terminal connections for branches 2 -
4 will not be present. Part no. 364806-02 provides terminal
connections for all four communication branches.
Inputs 1 - 4, indicated as “B” in Figure 3, provide terminal
connections for On-Q’s part no. 364697-01 RF Remote Control
Receiver or other external device outputs. These four logic-level
inputs simulate the four buttons of an ALC Scene Switch. These
inputs are referred to as Virtual Scene Switch Inputs. Each one
of the four inputs can have an EZ-Scene program assigned to it.
The external device may provide dry contact or voltage outputs
(5-12VDC) to the inputs. The external device’s outputs must be
configured as normally open/logic high (5-12VDC). A virtual
switch press is registered when the external device’s outputs
become closed/logic low (<0.8VDC) for at least 100msec. All
contact closures or voltages are applied between each input
connection and GND.
External devices requiring 12VDC power, such as ALC Branch
Hub (P/N 364677-01 and P/N364736-01) or RF Remote
Control Receiver (P/N364697-01), may draw their power from
the HMS Controller’s AUX 12V and GND power connections.
The 12VDC power connections are indicated as “C” in Figure 3.
Note: Do not exceed the HMS controller’s device load limit.
Consult the HMS controller’s installation manual for device
load ratings.
ALC controls may be connected directly to the branch
communication terminal connections as shown in Figure 4.
Correct polarity must be maintained.
Figure 3. Input and Branch Communication Connections
Figure 4. Direct ALC Communication Wiring
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