Vega-MV Router Multiviewer - User Manual
Issue 1 Revision 2
Page 26
© 2017 SAM
External Power Supply Shelf, MV-EXTPSU3
Product Introduction 3.9
3.8.2 MV-1000PSU - Power Supply Module Thermal Protection
The MV-1000PSU power supply module thermal protection operates under the following
conditions:
75°C ±5°C (TSW1) - temperature detection is on the heatsink of a power transistor
85°C ±5°C (TSW2) - temperature detection is on the heatsink of a power diode
Under the above conditions the output DC voltage is shutdown.
Recovery is automatic when the temperature drops.
3.9 External Power Supply Shelf, MV-EXTPSU3
A Vega-MV Router Multiviewer is supplied fitted with one internal power supply module
(MV-1000PSU). An optional backup power supply is available by using an external 1RU
power supply shelf (MV-EXTPSU3).
The MV-EXTPSU3 unit houses up to three independent MV-1000PSU modules and can
provide redundant / backup power for up to three Vega-MV units.
Thus. three Vega-MV Router Multiviewer units can have power supply redundancy using just
one fully-loaded MV-EXTPSU3.
An MV-EXTPSU3 provides DC power to a Vega-MV Router Multiviewer via a special DC
power cable, provided with each MV-1000PSU module in an MV-EXTPSU3.
Note:
The
MV-1000PSU
power supply module is fitted in the Vega-MV frame and also in the
optional
MV-EXTPSU3
backup power supply shelf.
Note:
When fitted into an MV-EXTPSU3, each MV-1000PSU module is specifically configured to
supply redundant / backup DC power to one Vega-MV unit.
Figure 8
MV-EXTPSU3 Functional Diagram
up to
3 independent PSUs,
3 separate DC outputs