downlink ports
connecting interface cables to
description
1-4
LEDs
1-4
dust and particulates, effects on chassis
DWDM SFP transceivers
optical specifications
physical and environmental specifications
product numbers and ITU channel numbers
E
electrical safety
2-9
Electromagnetic Interference. See EMI
Electrostatic Discharge. See ESD
EMI, effects on chassis
2-6
environmental specifications
equipment racks
2-2
ESD
attaching a wrist strap to the chassis
guidelines
2-10
preventing
2-10
using a ground strap
Ethernet management port
connecting to
3-20
description
1-4, 3-20, B-11
LED
B-11
pinout table
B-11
F
FAN LED
1-11
fan tray
color code
1-5
installing
4-11
LEDs
1-5
removal and replacement procedure
required tools
4-10
OL-21561-02
3-16
2-5
B-6 to B-7
B-7
B-7
B-6
1-7
2-11
2-10
4-10
fan tray (WS-X4993)
description
1-5
fan tray (WS-X4993-F)
description
1-5
features, chassis
1-3
front panel LEDs
1-11
G
grounding. See system ground
H
heat dissipation, chassis
humidity
1-7
operating
1-7
humidity, effects on chassis
I
installation
lifting safely
3-5
list of warnings
3-2
rack-mounting
3-5 to 3-8
required tools
3-4
starting the terminal-emulation software
L
label, chassis serial number
L brackets, attaching to the chassis
LEDs
AC-input power supplies
DC-input power supplies
downlink ports
1-4
fan tray
1-5
front panel
1-11
power-on self-test (POST) failures
Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
Index
1-7
2-5
3-21
C-4
3-6
A-4, A-7
A-13
3-22
IN-3