Description The Access Stack Node (ASN) provides network connectivity via a selection of net modules. Net modules are available to provide Ethernet, 100BASE-T (Fast Ethernet), Token Ring, FDDI, Synchronous, T1, E1, ISDN BRI, and ISDN PRI interfaces to meet a wide variety of connectivity requirements. Nortel Networks provides ISDN BRI support via this Quad port net module using S/T interfaces. An ASN with BRI interfaces eliminates the need for an external ISDN terminal adapter.
