Installation Guide
RDM-2DC Dual DC Dimmer Module 1920W, 0-10 VDC (x2)
The RDM-2DC Dual DC Module (FG606-61) is a 1920 W module used for the
Caution: Pre-Installation Notes
dimming of fluorescent ballast loads. It uses a 0 to 10 VDC current sinking for
use with four-wire ballasts. It is designed for use with the RDA series of
enclosures, in an AMX Lighting™ modular digital dimming system. The module’s
120 and 277 VAC ratings are CE, UL, and C-UL approved.
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All Class 1 wiring must be connected to proper terminals.
All control wiring must be connected to proper terminals.
Disconnect power while installing or connecting the unit.
Keep top and bottom air vents clear at all times.
Use low-voltage wires with a 300 volt rating or greater.
Use field installed copper conductors.
All electrical ratings are for continuous duty.
For indoor use only.
Test loads for shorts before connecting.
This module may require extra power from the AXlink connection or an
external power supply connected to the control card.
Mounting
points
Relay
- out (LV)
Low-voltage
+ out (LV)
Relay
High
voltage
Load out
Line in
Connecting the RDM-2DC to the AMX Lighting Master
Pin 4 (GND)
Pin 3 (RLY)
Pin 2 (DIM)
High
voltage
Line in
Load
out
Pin 1 (+12 V)
RDM-2DC 4-pin module connector
GND
- out (LV)
+ out (LV)
Low
voltage
3 (-)
2 (DIM)
1 (+)
Fuses
4-pin plug from RDM series module
Note: The 4-pin plugs from the module connector to the 4-pin
connector on the master (black plug cover facing up).
FIG. 2 Connecting the RDM-2DC and AMX Lighting Master
Lighting Application Drawings
Low-voltage control
wiring: 4-pin
connector to AMX
Lighting master
controller
Neutral
Ballast
Load
Florescent
Ballast
Neutral
-
Line in (HOT)
+
FIG. 1 RDM-2DC
The fuses protect the dimming
circuit from a low impedance load.
RDM-2DC UL and C-UL Ratings
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120 VAC, 50/60 Hz, 1920 W
277 VAC, 50/60 Hz, 1920 W
Control Out: 50 mA, 12 VDC sinking
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The fuse will blow if it were
incorrectly wired
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Catastrophic ballast failure
Reversing switched and
dimmed circuits
Circuit breaker
panel
Suggested Dimmed Loads
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Reversing dimmed and
line circuits.
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Four-wire dimmable ballasts, like Advance Transformer Mark VII™ or the
Energy Savings SuperDim™ series
The dimmed output must be
connected to a high impedance
load.
Specifications
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Dimensions (HW): 10" x 2.75" (25.4 cm x 6.99 cm)
Non-phase dependant
FIG. 3 RDM-2DC application wiring
Use wires rated at 75°C (167°F)
Torque terminals to 20 in-lbs. (2.3 N/M)
Max. wire size: 10 AWG (4 mm²)
Wire stripping length: 0.28" (7 mm)
Weight: 2.6 lbs. (1.180 kg)
Warning: Failure to ground the ballast may cause ballast failure
BTU/hr: 150
Control current: 125 mA @ 12 VDC per control port
For full warranty information, refer to the AMX Instruction Manual(s) associated with your Product(s).
7/08
93-606-61
REV: A
©2008 AMX. All rights reserved. AMX and the AMX logo are registered trademarks of AMX.
AMX reserves the right to alter specifications without notice at any time.
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