Enterasys Matrix X Router Installation Manual page 21

Figure 1-2 Back View of the DC Power Supply
1 Connector
The DC power supply provides the following features:
• Input Overload Protection
As shown in Figure
front panel, to protect against internal damage due to a catastrophic failure.
• Redundancy
A maximum of six supplies can be operated in parallel, sharing a common power bus.
Failure of any single supply will not affect operation of the power bus. In addition,
inadvertent hot‐swapping of energized power supplies will not affect bus operation.
This applies to all outputs of the power supply.
• Reverse Polarity Protection and Alarm
No damage will occur to the power supply if the input voltage is inadvertently
reversed. An audible alarm will sound upon reverse polarity.
• Visual Indicators
As shown in Figure
panel. The PWR‐IN LED lights green when the input voltage is above the minimum
required to operate. The PWR‐OUT LED lights green if all power supply voltage
outputs are in regulation.
1
1‐1 on page 1‐2, the power supply has a 50A circuit breaker on the
1‐1 on page 1‐2, the power supply has two LEDs on the front
Matrix X Router DC Power Supply Installation Guide 1-3
Overview of the DC Power Supply