12
a.
Use a multimeter to measure the resistance between the switch grounding terminal and
grounding point, and make sure the resistance is less than 0.1
Ω.
b.
Use a grounding resistance tester to measure the grounding resistance of the grounding
strip, and make sure the grounding resistance is less than 1
Ω.
•
If you ground the switch by using a grounding conductor buried in the earth ground, perform the
following tasks:
a.
Use a multimeter to measure the resistance between the switch grounding terminal and
grounding point, and make sure the resistance is less than 0.1
Ω.
b.
Use a grounding resistance tester to measure the grounding resistance of the angle iron in
the ground, and make sure the grounding resistance is less than 10
Ω
. For locations with
high soil resistivity, sprinkle some resistance reducer to reduce soil resistivity or replace soil
around the grounding strip with soil with lower resistance.
For information about resistance measurement, see
H3C Network Devices Lightning Protection
Guide
.
Installing and removing a power supply
Table 10 Power supply installation method
Power supply model
Installation method
CA-70A12
PSR75-12A
PSR150-D1
See "Installing/removing a power supply (1)."
PSR180-56A
PSR360-56A
PSR560-56D
PSR720-56A
PSR1110-56A
PSR600-54A-B
PSR920-54A-B
PSR1600-54A-B
See "Installing/removing a power supply (2)."
The S5570S-EI switch series provides two power supply slots. You can install one or two power
supplies for the switch as required. For the power supplies available for the switch and their
specifications, see
H3C S5170-EI & S5570S-EI Switch Series Hardware Information and
Specifications
.
The S5570S-28S-EI (LS-5570S-28S-EI), S5570S-54S-EI (LS-5570S-54S-EI), S5570S-36F-EI-GL
(LS-5570S-36F-EI), S5570S-54F-EI
(LS-5570S-54F-EI),
S5570S-28S-HPWR-EI-A
(LS-5570S-28S-HPWR-EI-A), and S5570S-54S-PWR-EI-A (LS-5570S-54S-PWR-EI-A) switches
are shipped with power supply slot PWR1 empty and power supply slot PWR2 installed with a filler
panel.
The
S5570S-28S-EI
(LS-5570S-28S-EI-GL),
S5570S-54S-EI
(LS-5570S-54S-EI-GL),
S5570S-36F-EI-GL
(LS-5570S-36F-EI-GL), S5570S-54F-EI
(LS-5570S-54F-EI-GL),
S5570S-28S-HPWR-EI-A
(LS-5570S-28S-HPWR-EI-A-GL), and S5570S-54S-PWR-EI-A
(LS-5570S-54S-PWR-EI-A-GL) switches support shipment with power supplies installed. If you hope
that the switch is shipped with the purchased power supplies installed, contact the H3C sales
personnel.
Summary of Contents for S5170-EI Series
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