H3C Technologies H3C S12500 Series Switches - Manual (Page 118)

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AC power frame
Each AC power frame can have one power monitoring module and up to six AC power modules.
Figure 87 Front view of an AC power frame
(1) to (6) AC power modules (the serial numbers are identical to the slot numbers)
(7) Power monitoring module
(8) Power monitoring module LED (9) Power frame switch
AC power module
Figure 88 AC power module
(1) Power input LED (2) Power output LED
(3) Over-temperature alarm LED (4) Power module fault LED
Power monitoring module
The power monitoring module (callout 7 in Figure 87 ) monitors the alarm status, in-position status, and
operating status of the power modules in real time. It is located between the power module slot area and
the power switch.
PEM
The PEM (see Figure 89 ) provides power to the power modules.
1
2
3
4