Cisco ISDN Basic (B) Network Modules

Cisco Integrated Services Digital Network (ISDN) Basic Network Modules (B) are Basic Rate Interface Network Modules that provide ISDN Concentration through ISDN BRI connections. This is done via RJ-45 connectors. None of these ISDN Basic Network Modules rely on any other type of network modules, WICs, VICs, or AIM modules for their operation. They provide their supreme functionality immediately without the need for installation any other device.