Installation Manual
H3C S7500E Series Ethernet Switches
Chapter 1 Product Overview
1-10
Table 1-4
Features of power modules
Feature
Description
Protection functions
Support input under-voltage protection, output
over-voltage protection, short-circuit protection,
over-current protection, and overheat protection
1+1 hot backup support
Support 1 + 1 hot backup and current sharing
Hot swap support
Support hot swap with the power switch turned off
while the device is in operation
Typically, the S7502E and the S7503E-S use 1U power modules, while the other
models of the S7500E series use 3U power modules.
The S7500E series support a large variety of card types, and system power
consumption of a switch varies with different types of cards in use. You can choose an
appropriate power module model for your switch based on its system power
consumption.
H3C has designed a power module adapter, PWR-SPA, to allow flexible power module
options to suit different system power consumption characteristics.
You can use PSR650 power modules in combination with PWR-SPA power module
adapters to power a switch with system power consumption lower than 650 W, instead
of using heavy-duty power modules like the PSR1400 or PSR2800.
The system power consumption of a switch is determined by its SRPUs, LPUs, and fan
tray. Specifically, the system power consumption of a switch is equal to the power
consumption of its SRPUs, LPUs, and fan tray put together.
For how to install power modules and power module adapters, refer to section 5.2
"Removing and Installing a Power Module."
Table 1-5
Compatibility matrix between power modules and switch chasses
Chassis
(right)
Power
module
(below)
S7502E
S7503E-
S
S7503E
S7506E
S7506E-
V
S7510
E
PSR320-A
Y1
Y1
N N N N
PSR320-D
Y1
Y1
N N N N
PSR650-A
Y1 Y1 Y2 Y2 Y2 N
PSR650-D
Y1 Y1 Y2 Y2 Y2 N
PSR1400-A
N N Y1 Y1 Y1 Y1
PSR1400-D
N N Y1 Y1 Y1 Y1