The Catalyst 6500 48-port 10/100 Fast Ethernet RJ-21 module is designed for the wiring closet. The WS-X6148-RJ-21 is field-upgradeable to support Cisco Inline Power via voice daughter card (WS-F6K-VPWR=), and will support IEEE 802.3af inline power standard in a future upgrade.
- Interface: 10/100 RJ-21 connector
- Backplane Connection: Bus
- Forwarding: Centralized
- Inline Power: Yes
- Queues per Port: 2 transmit, 1 receive