HP 3C10116B - NBX T1/PRI Digital Line Card (DLC) - T1 circuit to NBX Phone System, 1-port MDI-X to LAN switch Retail
HP 3C10116C - NBX Digital Line Card (DLC) - 1-port RJ45, 1-port MDIX, 10Mbps - Supports 24 DSO (T1) channels Retail