Offering a single ISDN BRI S/T interface, this WIC may require an external Network Termination 1 (NT1), depending on the region of the world. The WIC inserts into a mixed-media network module or directly into the WIC slot on the Cisco 1600, 1700, 1800, 1900, 2600, 2800, 2900, 3600, 3700, 3800, and 3900 Series Integrated Services Routers. The ability to add BRI connectivity through a WIC enables 
administrators to maximize valuable slot space while providing additional connectivity options, such as Ethernet, on the same module.
Features:
• One ISDN BRI port (S/T interface, requires external NT1)
• Utilizes an RJ-45 connector
• Supported Onboard, NM-1FE2W-V2, NM-1FE1R2W, NM-2FE2W-V2 and NM-2W
administrators to maximize valuable slot space while providing additional connectivity options, such as Ethernet, on the same module.Features:
• One ISDN BRI port (S/T interface, requires external NT1)
• Utilizes an RJ-45 connector
• Supported Onboard, NM-1FE2W-V2, NM-1FE1R2W, NM-2FE2W-V2 and NM-2W
