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Install Rack Options
Unison DRd rack options include the fluorescent option kit (DRd-FLO), the digital
addressable lighting interface option kit (DRd-DALI), the ride thru option kit (URTO), and
the battery pack option kit (UBPO).
N o t e :
It is best to install these rack options after conduit rough-in and the line, load and control
terminations are complete to reduce the likelihood of damage to the option boards.
D A L I O p t i o n K i t
I n s t a l l t h e D A L I O p t i o n K i t
The Digital Addressable Lighting Interface option kit (DRd-DALI) controls 24 loops of 64
DALI compatible fluorescent ballasts in a broadcast mode. Each of the 24 DALI loops are
linked one to one with a rack circuit for power control. For example, DALI loop 1 is controlled
by DRd rack dimmer 1, DALI loop 2 is controlled by DRd rack dimmer 2, etc.
To control DALI fluorescent ballasts, the rack circuit must be populated with a dimmer
module and assigned to DALI dimmer mode within the ACP software. Reference the
related Architectural Control Processor programming guide for instruction to change
dimmer mode.
N o t e :
5
Install Rack Options
A single DRd rack supports the use of either the DALI Option kit or the FLO Option
kit, but not both in the same rack.
In addition, a single DRd rack supports the use of either the Unison Ride Thru
Option (URTO) or the Unison Battery Pack Option (UBPO), but not both in the
same rack.
The DALI ballast is powered by an external DALI loop power supply (supplied by
others). This supply is connected externally of the DRd rack. Each DALI loop
requires its own power supply and possibly more than one power supply
depending on the load.
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