- One ISDN BRI port (S/T interface, requires external NT−1)
- RJ−45 connector
- Supported on Cisco 1700, 1800, 1900, 2600XM, 2800, 2900, 3700, 3800 and 3900 series routers
- Does not support hot swap, however no hardware damage occurs if it is swapped while power is on
- NM-1FE2W-V2, NM-2FE2W-V2, NM-1FE1R2W or NM-2W
The WIC-1B/ST-V3 offers a single ISDN BRI S/T−interface. It requires an external NT−1 that depends on the region of the world. The WIC inserts into a mixed−media network module or directly into the WIC slot on the Cisco 1700, 1800, 2600XM, 3700 or 3800 chassis.
The ability to add BRI connectivity via a WIC lets administrators maximize valuable slot space while it provides additional connectivity options, such as Ethernet, on the same module.