H3C Technologies H3C S5800 Series Switches - Manual (Page 10)

6
Table 4 LED description
Power module LED Color Status
• PSR300-12A
• PSR300-12A1
• PSR300-12A2
AC OK
Off
No power is input or
an input failure has
occurred.
On
The power input is
normal.
DC OK
Off
No power is output
or an output failure
has occurred.
On
The power output is
normal.
• PSR300-12D1
• PSR300-12D2
Input
Off
No power is input or
an input failure has
occurred.
ON
The power input is
normal.
Output
Off
No power is output
or an output failure
has occurred.
On
The power output is
normal.
If the input LED is on but the output LED is off after you power on the
device and switch on the power module, output short-circuit, output
over-current, output over-voltage, or over-temperature might occur. To
resolve the problem, see
Table 2 .