1-19
Catalyst 6500 Series Switch Module Installation Guide
78-15725-02
Chapter 1      Product Overview
10/100 and 10/100/1000 Ethernet Switching Modules
WS-X6524-100FX-MM Switch Fabric 
and Bus
Centralized
Supports 
optional DFC 
card
No 1 MB 4 transmit,
2 receive
WS-X6548-GE-TX Switch Fabric 
and Bus
Centralized Optional
2
1 MB 4 transmit,
2 receive
WS-6548V-GE-TX Switch Fabric 
and Bus
Centralized Yes 1 MB 4 transmit,
2 receive
WS-X6548-RJ-21 Switch Fabric 
and Bus
Centralized
Supports 
optional DFC 
card
No 1 MB 4 transmit,
2 receive
WS-X6548-RJ-45 Switch Fabric 
and Bus
Centralized
Supports 
optional DFC 
card
No 1 MB 4 transmit,
2 receive
WS-X6748-GE-TX Switch Fabric CEF720 No 1.3 MB 4 transmit,
2 receive
1. Supports IP phones.
2. Supports an optional inline power field upgrade module (WS-F6K-VPWR=)
Table 1-4 Ethernet Switching Modules Features (continued)
Product Number
Backplane 
Connection Forwarding
Inline 
Power
1
Port Buffer 
Size
Queues Per 
Port