Removing And Installing Cards - 3Com H3C S7503E-S CHASSIS Installation Manual

2) Grasp the handle of the module with one hand and hold the module bottom with the other. Gently
push the power module along the guide rails into the chassis until it has firm contact with the
connector on the backplane.
Be sure not to insert the power module with its front panel upside down.
Follow the forward inertia of the power module when inserting it into the chassis to ensure that the
power module has firm contact with the connector on backplane.
To prevent damage to the power module and the connection terminals on the backplane, make sure to
pull the module out first in case of any misalignment, and then push it in again.
3) Tighten the captive screws with a screwdriver to secure the power module to the chassis.
If the captive screws cannot be tightened, check whether the power module is properly installed.

Removing and Installing Cards

SRPUs and LPUs of the S7500E series are basically of the same structure. These cards share similar
installation and removal methods. This section describes the general installation and removal methods.
Cards of the S7500E series are hot-swappable.
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