1-22
Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
OL-19593-03
Chapter 1 Product Overview
Rear Panel Description
Note
A 48-port switch with one 715-W power supply provides up to 8.7 W of PoE to all ports.
The power supply modules have two status LEDs.
For information about replacing a power supply module, wiring a DC power supply module, and module
specifications, see
Chapter 3, “Power Supply and Fan Module Installation,”
and
Appendix A, “Technical
Specifications.”
Table 1-18
Switch Power Supply Requirements for PoE, PoE+, and UPOE
PoE Option
24-Port Switch
48-Port Switch
PoE (up to 15.4 W per port) (1) 715-W power supply
(2) 440-W DC power supplies
(1) 1100-W power supply
PoE+ (up to 30 W per port)
(1) 1100-W power supply
(1) 1100-W power supply plus
(1) 715-W power supply
or
(2) 1100-W power supplies
UPOE (up to 60 W per port) (1) 1100-W power supply plus
(1) 715-W power supply
or
(2) 1100-W power supplies
(2) 1100-W power supplies
(maximum of 30 ports)
Table 1-19
Switch Power Supply Module LEDs
AC-Power Supply Module LEDs
AC OK
Description
PS OK
Description
Off
No AC input power.
Off
Output is disabled, or input is
outside operating range (AC LED
is off).
Green
AC input power present.
Green
Power output to switch active.
Red
Output has failed.
DC-Power Supply Module LEDs
DC OK
Description
PS OK
Description
Off
No DC input power.
Off
Output is disabled, or input is
outside operating range (DC LED
is off).
Green
DC input power present.
Green
Power output to switch active.
Red
Output has failed.
