11
LED Status
Description
MAJOR
Steady on
•
At least one power supply is faulty.
•
All power supplies have been removed from the power frame.
•
The switch of the power frame is off.
•
Power supplies are in position, but no AC power supply is provided.
Turns on and
then goes off
A power supply is being inserted or removed.
Off
The power supplies are operating properly.
MINOR Off
Reserved
AC power supply
•
The AC power supplies are hot-swappable.
•
The power supply fans draw in fresh air from the front and exhaust warm air out of the rear.
•
Multiple AC power supplies work in N+1 or N+M redundancy and support load balancing.
Figure 11
AC power supply
(1) Power input LED
(2) Power output LED
(3) Over-temperature alarm LED
(4) Power supply fault LED
Table 4
AC power supply LED description
LED Status
Description
Input
Steady on
Power is being correctly input.
Off
No power is being input.
Flashing
Input power exceeds the threshold.
Output
Steady on
Power is being correctly output.
Off
No power is being output.
Flashing
The power output is overloaded.
Service
Steady on
The AC power supply is experiencing an over-temperature
condition.
Off
The AC power supply is operating properly.
1
2
3
4
Summary of Contents for S12500 Series
Page 40: ...30 Figure 28 Installing an upper expansion cable management bracket 1 2 3 4 5 6 7...
Page 109: ...99 Figure 74 Replacing a card for the S12504 A Card to be removed B Card to be installed...
Page 149: ...139 Figure 85 Loopback operation on an optical transceiver...
Page 164: ...154 Figure 100 Example of a device label...
