1.8 Power Supply Status LEDs
Each NX-7500 AC or DC power supply module has a single bi-color LED to indicate power supply status. The LED
is visible on the rear panel of each installed power supply.
The LED functionality for the power supplies is listed in the following table:
Flashing blue or green
Blue or green
1.9 Power Protection
• If possible, use a circuit dedicated to data processing equipment. Commercial electrical contractors are familiar
with wiring for data processing equipment and can help with the load balancing of these circuits.
• Install surge protection. Be sure to use a surge protection device between the electricity source and the
NX-7500 series integrated services platform.
• Install an Uninterruptible Power Supply (UPS). A UPS provides continuous power during a power outage. Some
UPS devices have integral surge protection. UPS equipment requires periodic maintenance to ensure reliability.
A UPS of the proper capacity for the data processing equipment must be purchased.
No power to all power supplies
No input power
Power present. Only standby output on.
Power supply on. Normal operation.
Power supply failure
Power supply warning. Reaching end of life or exceeding