DC power supply specifications
The VSP 7200 Series comes with one 800 W DC power supply and you can install a secondary
power supply for redundancy.
Important:
You must have either a power supply or a power supply cover in each bay to ensure proper
ventilation. Leaving a power supply bay unpopulated or uncovered impairs the ability of the fans
to cool the chassis.
Figure 5: DC power supply
The 800 W DC power supply uses a DC power supply wiring assembly to connect the power supply
to the DC power source.
The following table describes the regulatory DC power specifications for the VSP 7200 Series
switch. Note that regulatory power specifications are based on the maximum rated capacity of the
power supplies and are not based on typical power consumption, which is typically lower.
Table 8: DC power specifications
VSP 7254XSQ or 7254XTQ
Input Current:
24–16 A
Input Voltage (rms):
40.5 to 60 VDC
Power Consumption:
800 W maximum
Temperature:
Operating range: 0 to 50 ºC
Non-operating range: -40 to 70 ºC
Inrush Current:
50 A maximum
Turn on Condition:
500 ms maximum after application of DC power
Important:
12 V output rise time, from 10 to 90 percent, must be the maximum of 70 ms and monotonic under all
defined input and output conditions.
Efficiency:
• 88% minimum at 100% load level
• 92% minimum at 50% load level
• 88% minimum at 20% load level
• 80% minimum at 10% load level
Installing a power supply
November 2016
Installing the Avaya VSP 7200 Series
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