Important: Modem media wiring for NICs applies to non-4100U/4100ES systems only.
The Modem Media Card uses RJ-11 connectors to connect 4100-6014 and 4100-6078 NIC Assemblies across parts of a network.
Use the RJ-11 connector (P2) to connect nodes that use the modem media card. Do not use connector P1 (P1 is reserved for when the daughter card
is used as a physical bridge). Leased lines must be analog, full-duplex, private line (no dial tone), with a two-wire RJ-11 interface. Class B requires one