Cisco 4948 - Catalyst Switch Installation Manual page 21

Chapter 1 Product Overview
Table 1-1 Catalyst 4948E and Catalyst 4948E-F Switch Features (continued)
Feature
RESET switch
(both chassis)
Fan tray
Catalyst 4948E chassis
Catalyst 4948E-F chassis
OL-21561-02
Description
Resets and restarts the switch.
•
The switch is recessed on chassis front panel and requires a pointed
•
object to access it.
The Catalyst 4948E chassis supports one hot-swappable fan tray (part
•
number WS-X4993=).
The fan trays are not interchangeable between the Catalyst 4948E
Note
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.
–
The Catalyst 4948E-F chassis supports one hot-swappable fan tray (part
•
number WS-X4993-F=).
The fan trays are not interchangeable between the Catalyst 4948E
Note
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
Features
1-5