Installation Manual
H3C S5500-EI Series Ethernet Switches
Chapter 1 Product Overview
1-15
1.5.3 Rear Panel
(1)
(2)
(3)
(4)
(5)
(1)
(2)
(3)
(4)
(5)
(1) RPS port
(2) AC power socket
(3) Grounding screw
(4) Extended interface module slot 1
(5) Extended module slot 2
Figure 1-12
Rear panel of the S5500-28C-PWR-EI
1.5.4 Power Supply System
The S5500-28C-PWR-EI can adopt AC power input, or DC power input, or both to
provide backup.
z
AC power input
Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz
Rated voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz
Only the RPS recommended by H3C can be used for the S5500-28C-PWR-EI. The –48
VDC power supply in the equipment room cannot be used directly. Otherwise, the
device may be damaged.
z
DC power input
Rated voltage range: –52 VDC to –55 VDC
1.5.5 Cooling System
The S5500-28C-PWR-EI is equipped with six fans for heat dissipation.
1.5.6 LEDs
For descriptions about LEDs, see Table 1-5. You can switch the Mode LED display
mode between speed, duplex, and PoE by pressing the Mode button on the panel.
Table 1-5
Descriptions of the LEDs on the front panel of S5500-28C-PWR-EI
LED
Mark
Status
Description
Speed
Solid green
Rate of the port
Duplex
Solid yellow
Duplex mode of the port
Mode LED
Mode
PoE
Flashing
green (1 Hz)
PoE mode of the port
