Datasheet
Data Sheet
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Table 2. Cisco Catalyst 4900M Configuration Options
Configuration 10 Gigabit
Ethernet (X2)
Ports
1/10 Gigabit
Ethernet
(10GBASE-T)
Ports
10/100/1000
Ports
Gigabit Ethernet (Small Form-Factor
Pluggable [SFP]) Ports Using TwinGig
Converter Module
10/100/1000 access with 10 Gigabit
Ethernet uplinks
8 0 40 0
10/100/1000 and 10 Gigabit Ethernet
access with 10 Gigabit Ethernet
uplinks
12 or 16 0 20 0
Gigabit Ethernet (SFP) access with 10
Gigabit Ethernet uplinks
8 0 0 32
Gigabit Ethernet (SFP) and 10 Gigabit
Ethernet access with 10 Gigabit
Ethernet uplinks
12 or 16 0 0 16
10 Gigabit Ethernet access (X2) with 10
Gigabit Ethernet uplinks
16 or 24 0 0 0
Gigabit Ethernet (SFP) and 10/100/1000
access with 10 Gigabit Ethernet
uplinks
8 0 20 16
10 Gigabit Ethernet access (10GBASE-
T) with 10 Gigabit Ethernet Uplinks
8 16 0 0
10/100/1000 and 10 Gigabit (10GBASE-
T) Ethernet access with 10 Gigabit
Ethernet uplinks
8 8 20 0
10 Gigabit (10GBASE-T) and 10 Gigabit
(X2) Ethernet access with 10 Gigabit
Ethernet uplinks
12 or 16 8 0 0
10 Gigabit (10GBASE-T) and Gigabit
Ethernet (SFP) access with 10 Gigabit
Ethernet uplinks
8 8 0 16
10 Gigabit Ethernet and Gigabit Ethernet on the Same Half Card
The Cisco TwinGig Converter Module (Figure 6) converts a single 10 Gigabit Ethernet X2 interface into two Gigabit
Ethernet port slots that can be populated with SFP optics, enabling customers to use Gigabit Ethernet SFPs on the
same card in combination with 10 Gigabit Ethernet X2 optics. The Cisco OneX Converter Module is supported on all
10 Gigabit Ethernet modules of the Cisco Catalyst 4900M. The Cisco OneX converts an X2 interface into one SFP+
interface and uses the full range of Cisco SFP+ transceivers (Figure 7).
Figure 6. Cisco TwinGig Converter Module Converts a 10 Gigabit Ethernet X2 Interface into Two Gigabit Ethernet SFPs