Cisco ws-x6148-ge-tx The 48-port 10/100/1000base-t switching module (ws-x6148-ge-tx) provides 48 switched, 10/100/1000-mbps autosensing, full- or half-duplex ports. The module has 48 rj-45 connectors for use with either category 3, category 5, category 5e, or category 6 utp cable. This module can be upgraded with an inline-power daughter card to support ip phones.
