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Design-in Guide - Philips Xitanium LED Xtreme SR driver
Sensor Ready Interface (DA+/DA-)
Xitanium LED Xtreme SR drivers reduce complexity and cost of
luminaires used in (wireless) connected lighting systems. They
feature a digital SR interface to enable direct connection to any
suitable
luminaire-based
controller or sensor. Functionality integrated
driver eliminates the need for auxiliary luminaire components
such as power supplies and relay boxes used in many typical
outdoor lighting controllers (OLC) today. The result is a
simpler, less expensive luminaire that enables turning every luminaire
into a wireless node and a more reliable DC powered controller.
The simple two-wire SR (DA+/DA-) interface supports
these key functions:
• Switchable built-in SR bus power supply to provide power to the
connected control device (e.g. an RF module or an OLC)
• Two-way digital communication between the SR driver and
control device, based on DALI 2 protocol
- Standard DALI dimming, ON/OFF (excl. commissioning)
- Power and energy reporting utilizing the power monitoring
integrated in the driver
- Diagnostic information
These functions are described further in this document.
Warning: although communication via the SR (DA+/DA-) interface
is based on DALI 2 protocol, the interface itself is not a DALI
interface!
Compatibility with regular DALI 2 devices
SR Certified Products are designed to fully benefit from the SR driver
capability. DALI Edition 2 compliant devices can also be applied in
conjunction with SR drivers, yet with limited functionality.
Compatibility with outdoor CMS systems
In the outdoor segment, the preferred option is to apply the SR
driver in combination with the SR interface for both the CMS nodes
and potentially additional sensors. The Xitanium SR drivers can be
used in combination with a DALI Edition 2 compliant device.
However, a full system verification is advised to avoid high customer
dissatisfaction and significant costs to repair.
Auxiliary Power Supply
Next to the SR bus power supply, the Xitanium LED Xtreme
SR drivers are equipped with a permanently-enabled internal 24
VDC power supply which is short-circuit proof and intended
power
auxiliary luminaire devices that need more power than
the
SR
bus
can deliver.
continuously and 10W peak with a duty cycle of 25% (t = 5.2
ms). This supply shares its common with the SR bus supply
common. In case of a short – circuit, the light will switch off.
Note: It is not allowed to connect the auxiliary power supply of
one
driver in parallel to the auxiliary supply of another
driver. These supplies need to be kept separated from each other.
CMS
(City
Management
into the
This supply
can deliver
System)
SR
to
3W
6
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