ETC Unison Mosaic Show Control - Manual (Page 7)

7
POWER SUPPLY
The MSC can be powered in two different ways:
• DC power (9 to 48V)
nd
A limited power source approved to UL60950-1 2 Edition, CAN/CSA C22.2 No. 60950-
nd
1.07 2 Edition MUST be used, with an output voltage of 9 to 48V DC.
Such a power supply can be connected directly to the MSC using the DC Input connector.
The pins on this connector are marked:
Positive input (9 to 48V DC)
Signal ground (0V)
Chassis ground (earth)
The power supply should be connected to the Positive and Signal ground inputs, ensuring
the polarity is correct. Where possible, use a 12V (minimum) supply in preference to a 9V
supply to ensure some headroom.
The MSC will typically consume 4W.
• Power-over-Ethernet (PoE)
A standard (802.3af) Power-over-Ethernet switch may be used to provide both power and
a network connection to the MSC using a single cable.
The MSC operates as a PoE Class 2 device (3.84>6.49W) and will typically consume 4W.
GROUNDING
The MSC is designed to be mounted on a grounded (earthed) DIN-rail and a dedicated Chassis
ground (earth) terminal is also provided which should be connected to a suitable earth.
Additionally, the Signal ground can be tied to Chassis ground to provide a suitable reference but
this is not generally recommended.
If in any doubt at all, or if you have unusual power supply or grounding/earthing requirements,
then please consult ETC support.
NOTE: Power should only be applied using one of the above methods. Redundant
operation using both sources is not supported.
NOTE: Power must not be disconnected when uploading project data nor during
bootloader/firmware updates to the MSC as corruption of the data or
software may occur, perhaps even rendering the unit inoperable.
MSC