H3C Technologies H3C S12500 Series Switches - Manual (Page 119)

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Figure 89 PEM
S12504 DC power supply
S12504-DC switches use the PSE9000-D DC power supply system, which comprises a DC power frame,
a power monitoring module, and DC power modules.
DC power frame
Each DC power frame can have one power monitoring module and up to six DC power modules.
Figure 90 DC power frame front view
(1) to (6) DC power modules
(7) Power monitoring module
(8) Power monitoring module LEDs (9) Power frame switch
A DC power frame has six pairs of wire posts corresponding to power modules 1 to 6, and one
grounding post. The external DC power system supplies power through the six pairs of wire posts.