Cisco 4948 Installation Guide - Page 21

Catalyst 4948E-F chassis - 4948e f

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Chapter 1 Product Overview Features Table 1-1 Catalyst 4948E and Catalyst 4948E-F Switch Features (continued) Feature RESET switch (both chassis) Fan tray Catalyst 4948E chassis 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=). Note The fan trays are not interchangeable between the Catalyst 4948E and the Catalyst 4948E-F chassis. 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=). 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. OL-21561-02 Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide 1-5

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1-5
Catalyst 4948E and Catalyst 4948E-F
Switch Installation Guide
OL-21561-02
Chapter 1
Product Overview
Features
RESET switch
(both chassis)
•
Resets and restarts the switch.
•
The switch is recessed on chassis front panel and requires a pointed
object to access it.
Fan tray
Catalyst 4948E chassis
•
The Catalyst 4948E chassis supports one hot-swappable fan tray (part
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.
Table 1-1
Catalyst 4948E and Catalyst 4948E-F Switch Features (continued)
Feature
Description