3Com NB Digital Line Card (3C10116D)
Second generation NBX T1 and ISDN Primary Rate Interface (PRI) Card that supports G.729 compression, includes integrated CSU, and allows remote Layer 3 operation, and provides logging services (see books open notice for more details). Terminates a standard voice T1/PRI circuit into the SS3 NBX or NBX 100. Includes an 10/100 MB MDI uplink port for connecting to a LAN switch port to optimize network loading. Operates on R4.3 system software and greater.