H3C Technologies H3C S9500 Series Switches - Manual (Page 79)

Installation Manual
H3C S9500 Series Routing Switches
Chapter 4 Switch Installation
4-10
Note:
PE: Protection Earth
z If both ground bar and the conditions for burying the grounding body are not
available, a -48V DC-powered Ethernet switch can be grounded using the RTN
wire of the DC power supply. In this case, make sure that the RTN wire has been
well grounded at the DC egress of the DC power cabinet.
(1)
(2)
(4)
(3)
(6)
(5)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(1)
(2)
(4)
(3)
(6)
(5)
(7)
(11)
(12)
(8)
(9)
(10)
(13)
(1) AC/DC power cabinet (2) -48V line bank
(3) -48V output (4) RTN line bank
(5) RTN output (6) PGND line bank
(7) Earth ground (8) DC power input
(9) Grounding screw (10) Rear p el of the switch
ch
F cabinet via PGND o
4.5.2 Conn
an
(11) Front panel of the swit (12) Air filter
(13) PGND wire
igure 4-9 Ground the f the power cabinet
ecting AC Power Cord
Caution:
z For lightning protection, the AC power should be led through an external lightning
device into the switch.
z Make sure the power switch on the PSU is at OFF position before connecting the
power cord.
On the front panel of AC PSU, there is a connector-retention clamp.