H3C Technologies H3C S5500 Series Switches - Manual (Page 44)

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Figure 30 Grounding through the PGND of a power cabinet
(1) DC power input (2) Switch rear panel (3) Grounding screw (4) Grounding cable
(5) AC/DC power cabinet (6) –48V strip (7) –48V (8) RTN strip
(9) RTN (10) Grounding strip (11) Grounding
NOTE:
To guarantee the grounding effect, use the grounding cable provided with the switch to connect to the
grounding strip in the equipment room as long as possible.
Installing and removing a hot swappable power
module
NOTE:
•
This section describes how to install a power module for only the S5500-28F-EI switch.
• Before installation and removal, make sure no power cord is connected to the power module.
The installation/removal procedures of the PSR150-A, PSR150-A1, PSR150-D, and PSR150-D1 are
similar. This document takes the PSR150-A as an example to describe the installation and removal of the
power module.
Installing the power module
To install the power module:
1. Wear an ESD-preventive wrist strap, and make sure it makes good skin contact and is well
grounded.
2. Unpack the power module and verify that the power module model is as required.
3. Face the power module slot.
4. Insert the power module with the upside up. (if you insert it with the upside down, the insertion is
not smooth because of the specific structure design of the power module and slot). Grasp the