... , CSU/DSU, drop and insert multiplexer•2-port RJ-48 multiflex trunk (E1 G.703)Support for both T1 and E1—T1/E1 MFT VWIC2 cards ... cards by supporting T1, fractional T1, E1, and fractional E1 for both voice and WAN applications.•Drop and insert capability on all versions—All MFT ...