User's Manual

CHAPTER
1-1
Cisco Catalyst 490 0M Switch Ins talla tion Guid e
78-18350-02
1
Product Overview
Revised: January 4, 2012
This chapter describes the Catalyst 4900M switch and the supported half-card Eth ernet modules. The
chapter contains these sectio ns:
• Catalyst 4900M Switch Chassis, page 1-1
• Catalyst 4900M Half -Card Mo dules, page 1-8
• Serial Number Location, page 1-14
Catalyst 4900M Switch Chassis
The Catalyst 4900M switch is a 2 RU horizontal high-performance dedicated Ethernet switch. The
chassis has 8 fixed 1- GB or 10 -GB ports a nd two hal f-card Eth ernet module slots that can accommodat e
a several different styles of half-car d Ethernet modules. The switch has one removable variab le-speed
fan tray and supports redundant power supplies. Figur e 1-1 shows the front of the chassis.