Quick tech specs
- Port ISDN BRI U High-Speed WAN Interface Card
- HWIC
- for Cisco 1841 3G
- 18XX
- 1921 ADSL2+
- 28XX
- 38XX
- ISDN terminal adapter
- ISDN BRI U
- 1841 ADSL2
- 1921 4-pair
- 19XX
- 29XX
- 39XX
Know your gear
Cisco integrated services routers offer a wide variety of WAN connectivity modules to accommodate the range of application needs in customer networks. The Cisco 1-Port BRI U High-Speed WAN Interface Card (HWIC, Figure 1) offers BRI-U-based WAN connectivity for modular routers deployed in small to medium-sized businesses (SMBs) and enterprise branch offices.