Extron electronics CrossPoint 450 Plus Series User Manual page 22

Power — The matrix switchers' 100 VAC to 240 VAC, internal power supply(s)
provides worldwide power compatibility.
Primary and redundant power supplies —
(CrossPoint 450 Plus and MAV Plus 2412, 2424, 3216, and 3232 switchers only)
Includes two internal 100 VAC to 240 VAC, 50/60 Hz, auto-switchable power
supplies, which provide worldwide power compatibility.
The power supply circuitry is configured to automatically switch over from
the primary supply to the hot redundant supply in the case of a failure.
The hot redundant power supply means high reliability for the system and
no loss of functionality should the primary supply fail; the redundant power
supply immediately assumes the load.
Power supply status LEDs —
(CrossPoint 450 Plus and MAV Plus 2412, 2424, 3216, and 3232 switchers only)
Front panel LEDs indicate the status of the primary and redundant power
supplies.
CrossPoint 450 Plus and MAV Plus Matrix Switchers • Introduction 1-11