Cisco Systems 4948E-F manual Feature Description

Chapter 1 Product Overview

Features

Table 1-1	Catalyst 4948E and Catalyst 4948E-F Switch Features (continued)
Feature		Description
RESET switch		• Resets and restarts the switch.
(both chassis)		• The switch is recessed on chassis front panel and requires a pointed
		object to access it.
Fan tray		• The Catalyst 4948E chassis supports one hot-swappable fan tray (part
Catalyst 4948E chassis		number WS-X4993=).
		Note The fan trays are not interchangeable between the Catalyst 4948E
		and the Catalyst 4948E-F chassis.
		• The fan tray has four variable-speed 12 VDC fans.
		• The fan tray installs in the rear of the chassis between the two power
		supplies.
		• The fan tray for the Catalyst 4948E (WS-X4993=) is color-coded dark
		grey.
		• A redundant pair of thermal sensors are positioned near the air inlet
		(front of the chassis) to monitor the ambient air temperature and control
		the fan tray fan speed.
		• The airflow in the Catalyst 4948E chassis is from front to back.
		• The chassis has a FAN LED (located on the chassis front panel) that
		provides fan tray status.
		– Red—One or more individual fans in the fan tray have failed.
		– Green—All fans in the fan tray are operating normally.
Catalyst 4948E-F chassis		• The Catalyst 4948E-F chassis supports one hot-swappable fan tray (part
		number WS-X4993-F=).
		Note The fan trays are not interchangeable between the Catalyst 4948E
		and the Catalyst 4948E-F chassis.
		• The fan tray has four variable-speed 12 VDC fans.
		• The fan tray installs in the rear of the chassis between the two power
		supplies.
		• The fan tray for the Catalyst 4948E-F is color-coded blue.
		• A redundant pair of thermal sensors are positioned near the air inlet (rear
		of the chassis) to monitor the ambient air temperature and control the fan
		tray fan speed.
		• The airflow in the Catalyst 4948E-F chassis is from back to front.
		• The chassis has a FAN LED (located on the chassis front panel) that
		provides fan tray status.
		– Red—One or more individual fans in the fan tray have failed.
		– Green—All fans in the fan tray are operating normally.

Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide

OL-21561-02 1-5