Table of Contents

index

index

Numerics

1000BASE-LX/LH   2-8

1000BASE-SX   2-8

1000BASE-ZX   2-8

A

airflow

direction   1-5

fan assembly   1-5

specifications   A-2

auxiliary ports

description   1-2

specifications   A-4

C

Catalyst 4908G-L3 switch router

labeling   1-3

chassis

cooling   1-5

dimensions   A-2

commands

show interface   2-12

shutdown   2-10, 2-12

components

fan assembly   1-5

GBICs   2-8

power supplies   1-6

switching   A-2

console ports

description   1-2

specifications   A-4

conventions, document   xi

customer service   B-4

D

DC-input power supplies

terminal block connectors   2-16

differential mode delay   C-1

dimensions

chassis   A-2

equipment rack   2-6

document conventions   xi

E

environmental monitoring

description   1-6

power supplies   1-6

F

fans

airflow   1-5

description   1-5

failure   1-6

troubleshooting   B-3

G

GBICs

care   2-10

compliance   2-9

description   2-8

handling   2-10

lifetime   2-10

maintaining   2-10

plug removal (caution)   2-11

third-party vendors (note)   2-8

Gigabit Ethernet ports

specifications   A-5

Gigabit Interface Converters

See GBICs

L

lasers   C-2

L brackets

attaching   2-6

attaching (figure)   2-7

LEDs

description   B-2

port (figure)   1-4

power supplies   B-2

M

management ports

auxiliary   1-2

console   1-2

figure   1-3

mounting posts

dimensions   2-6

L brackets   2-7

O

overfilled launch condition   C-2

P

patch cords

compliance   2-8

description   2-8

pinouts

auxiliary port   A-4

console port   A-4

ports

auxiliary   1-2

auxiliary pinouts (table)   A-4

console   1-2

console pinouts (table)   A-4

Gigabit Ethernet   1-2

specifications   A-4  to A-5

power

connecting   2-7

general requirements   2-2

loss prevention   2-2, 2-3

maximum load (caution)   2-2, 2-3

multiple connections (caution)   2-14

redundant (note)   2-3

specifications   A-2

troubleshooting   B-3

power supplies

description   1-6

environmental monitoring   1-6

LEDs   B-2

redundant   1-6

troubleshooting   B-2, B-3

R

rack-mounting

figure   2-7

guidelines   2-4

preparing for   2-5

system   2-5

removing

screws   2-6

RPSs

description   1-6

S

safety

preinstallation   2-1

translated warnings   D-1

service and support   B-4

show interface command   2-12

shutdown command   2-10, 2-12

site planning

general requirements   2-2

overview   2-2

specifications

auxiliary ports   A-4

console ports   A-4

frequency   A-2

GBIC cabling (table)   A-5

Gigabit Ethernet ports   A-5

memory   A-2

power   A-2

switching components   A-2

T

temperature

ambient   2-2

environmental monitor   2-2

thresholds   2-2

terminal blocks

connectors, DC-input power supply   2-16

tools, required   2-5

troubleshooting

components   B-3

contacting customer service   B-4

power supplies   B-2, B-3

W

warnings

translated   D-1

weight, chassis   A-2