Chapter 1 Product Overview
Rear Panel Description
The power-supply modules have two status LEDs. Table 1-14lists the LED colors and their meanings.
Table 1-14 | Catalyst 3560E-12D and 3560E-12SD Switch Power-Supply Module LEDs |
| | |
AC-Power-Supply Module LEDs1 | | |
AC OK | | Description | PS OK | Description |
| | | | |
Off | | No AC input power to either power | Off | No AC input power to either |
| | supply, or both power supplies are | | power supply, or both power |
| | turned off. | | supplies are turned off. |
| | | | |
Green | | AC input power present. | Green | Power output to switch is active |
| | | | with no fault conditions. |
| | | | |
Red | | No AC input power or power supply | Red | AC OK LED is red, no output |
| | is turned off. | | power to the switch, or the power |
| | | | supply or power supply fan has |
| | | | failed. |
| | | |
DC-Power-Supply | Module LEDs1 | | |
DC IN | | Description | PS OK | Description |
| | | | |
Off | | No DC input power to either power | Off | No DC input power to either |
| | supply. | | power supply. |
| | | | |
Green | | DC input power present. | Green | Power output to switch is active |
| | | | with no fault conditions. |
| | | | |
Red | | No DC input power. | Red | DC IN LED is red, no output |
| | | | power to the switch, or the power |
| | | | supply or power supply fan has |
| | | | failed. |
| | | | |
1.If one power-supply module is installed but not turned on, the module LEDs continue to operate because of the shared voltage between the power-supply modules. If the only operating power-supply module fails or is turned off, the LEDs for neither module are on.
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.”
Fan Modules
The 24- and 48-port switch models have one internal hot-swappable 12-V fan module that inserts in the switch rear panel (part number C3K-BLWR-60CFM=).
The Catalyst 3560E-12D switch has four internal hot-swappable 12-V fan modules that insert in the switch rear panel. The Catalyst 3560E-12SD switch has two internal hot-swappable 12-V fan modules that insert in the switch rear panel. Each fan module (part number C3K-FAN-16CFM=) has a green LED that shows that it is operating. The LED is off when there is a fan failure.
The Catalyst 3560E-12D or 3560E-12SD switch continues to operate when there is one failed fan, either a power-supply fan or a chassis cooling fan. If one fan fails, the switch returns an error message. If a second fan fails, either a power supply fan or a chassis cooling fan, the switch returns an error message, writes a failure log to flash memory, and shuts down.
For more information about installing a fan module and the module specifications, see Chapter 3, “Power Supply and Fan Module Installation,” and Appendix A, “Technical Specifications.”
Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
