Cisco WS-X6608-T1

Cisco ISDN terminal adapter plug-in module expansion slot T1 - 1.5 Mbps - T-1 - 8 digital port(s). ISDN terminal adapter. Interfaces 8 x modem - T1 - RJ-48 - 8.

Compatibility: 7600, Catalyst 6000, and Catalyst 6500.