Chapter 1 Product Overview
Rear Panel Description
The power-supply modules have two status LEDs. Table 1-12lists the LED colors and their meanings.
Table 1-12 | 24- and 48-Port Switch Power-Supply Module LEDs | |
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AC-Power-Supply Module LEDs | | |
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AC OK | | Description | PS OK | Description |
| | | | |
Off | | No AC input power. | Off | Power supply failure. |
| | | | |
Green | | AC input power present. | Green | Power output to switch active. |
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| | | Red | No output power to switch. |
| | | |
DC-Power-Supply Module LEDs | | |
| | | | |
DC IN | | Description | PS OK | Description |
| | | | |
Off | | No DC input power. | Off | Power supply failure. |
| | | | |
Green | | DC input power present. | Green | Power output to switch active. |
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For more information about replacing a power-supply module, wiring a DC-power-supply module, and for module specifications, see Chapter 3, “Power Supply and Fan Module Installation,” and Appendix A, “Technical Specifications.”
Catalyst 3560E-12D and 3560E-12SD Switch Power-Supply Modules
The Catalyst 3560E-12D and 3560E-12SD switches have two internal 300-W power-supply modules (Table 1-13). The AC-power-supply modules are autoranging units that support input voltages between 85 and 265 VAC. The DC-power-supply modules have a single input feed and support input voltages between –40.5 and –72 VDC. You can use two AC modules, two DC modules, or a mixed configuration of one AC and one DC power-supply module.
The Catalyst 3560E-12D and 3560E-12SD switches can operate with only one active power-supply module. However, two power supply modules must always be physically installed in the switch rear panel when the switch is operating, even if one module is defective. This is required to maintain adequate airflow in the chassis and prevent overheating.
Caution Do not operate a Catalyst 3560E-12D or 3560E-12SD switch with one power-supply module removed from the rear panel. For proper chassis cooling, two power-supply modules must be installed in the switch rear panel.
The AC power-supply modules have a power cord for connection to an AC-power outlet. The DC power-supply modules require wiring to a DC-power source. The AC-power supplies have an on/off power switch. DC-power supplies do not have an on/off switch.
Table 1-13 | Catalyst 3560E-12D and 3560E-12SD Switch Power-Supply Modules |
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Switch | | AC-Power-Supply Module | DC-Power-Supply Module |
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Catalyst 3560E-12D | C3K-PWR-300WAC= | C3K-PWR-300WDC= |
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Catalyst 3560E-12SD | C3K-PWR-300WAC= | C3K-PWR-300WDC= |
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Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
