H3c-technologies H3C S9500E Series Switches Manuel d'utilisateur télécharger pdf (Page 19)

Figure 8 S9512E rear view

(1) Rear cover handle (2) Groundin

screw

(3) Fan tray and handle

The S9512E chassis has the following slots and components:

• Two MPU slots, 12 LPU slots, and two power supply slots at the front.

• Two vertically oriented, hot swappable fan trays at the rear. The fans draw air in from the left side

and exhaust air out of the right side. For the ventilation direction inside the chassis, see "Preparing

for installation."

NOTE:

Intermixing of AC and DC power supplies is not allowed.

Backplane

The backplane of an S9500E switch is located inside the chassis. It provides high-speed data switching

and exchanges management and control signals between MPUs and LPUs. The backplane provides the

following capabilities:

• Provides communication channels for signal exchange between cards.

• Supports hot-swapping of cards.

• Identifies card type.

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H3c-technologies H3C S9500E Series Switches Manuel d'utilisateur Page 19