AMX Radia Eclipse 4-Channel Dimmer Module RE-DM4 - Manual (Page 31)

Installation
23 RE-DM4 and RE-DM6 RADIA Eclipse Dimmer Modules
External power
The following table lists the modules that use most of the operating power an AMX Lighting control module
can supply. They may require extra power from the AxLink connection or an external power supply connected
to the control module or module(s) when using multiple modules.
If extra power is required, connect an auxiliary 12 VDC power supply as shown in FIG. 28.
Dry Closures
The RE-DM4 and RE-DM6 have two dry closure inputs via a 4-pin mini-phoenix connector. The inputs are an
open collector pulled up to 5 VDC. The status is normally open, channel Off, with the closure released. When
an input is pulled low to ground and falls below 3 VDC, the AMX Lighting system sees the action as an input
closure, the AxLink channel is turned On, and a push sent to the Axcess Central Controller.
Connecting Dry Closures
AMX Lighting controller modules contain four connections for two dry contact closure inputs, and one
common reference point. The Radia has two (2) contact closure inputs dedicated to special purposes: Failsafe
and Emergency.
Failsafe Input
The failsafe input is provided to facilitate limited stand-alone operation in the event that the AxLink master is
no longer functioning. The failsafe input shall function regardless of whether AxLink is working properly or
not (i.e. there is no lockout of control).
Operationally, when the failsafe input contact closure is closed (i.e. ON), preset 128 will be recalled. When the
failsafe input contact closure is opened, preset 127 will be recalled. Both of these preset recalls occur on the
edge of the transition from opened-to-closed to closed-to-opened.
Emergency Input
The emergency input is provided to interface to an alarm system (such as a fire alarm) to set the lighting to an
appropriate state for an emergency (e.g. light the path to the exit). The expected operation of the alarm system
is to hold (close) the contact closure as long as the alarm is active and release (open) the closure when the
alarm is cleared.
Operationally, when the emergency input contact closure is closed (i.e. ON), preset 126 will be recalled. In
addition, all other controls of the lighting functions will be disabled as long as the emergency input is closed.
When the emergency input contact closure is opened, normal operation of the Radia will resume.
External Modules
RDM-HSW RDM-MR RDM-SWM
RDM-2HSW RDM-2MR RDM-2SWM
RDM-3HSW RDM-3MR RDM-3SWM
RDM-HFDB RDM-MR35 RDM-DPSM
RDM-HDC RDM-MR60
FIG. 28 Auxiliary power connection
Auxiliary 12 VDC
power supply
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