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  • Supports ISDN backup of leased lines and Dynamic Bandwidth Allocation
  • Provides Bandwidth On Demand (smart terminal adapter)
  • Operates over a combination of two switched (B channels) and one leased line
  • Integrated terminal adapter supports Euro-ISDN, 5ESS, National ISDN (NI1), DMS-100 and NTT
  • Supports "S" and "U" interfaces
  • Supports S0 leased line
  • Supports BONDING 1, 2 and 3 protocol specifications
  • Differential delay of up to 512 msec
  • Configuration via front panel or control port
  • Resilient operation with failure recovery SNMP support using SLIP protocol
  • Software download via Xmodem protocol



The IMX-2 is an inverse multiplexer that splits incoming data between a leased line and an ISDN link, according to mode of operation, line availability and traffic load.

Typical applications for the IMX-2 include leased line backup, dynamic bandwidth allocation and bandwidth-on-demand.

The IMX-2 offers a large choice of interfaces on the network side as well as the data ports. It connects to basic rate ISDN (BRI) switched digital service and supports S and U interfaces, as well as S leased line interface (S0). It also supports one dedicated circuit (leased line) with all popular interfaces: V.35, V.36/RS-422, RS-530 or X.21.

For applications such as videoconferencing that require switched connections, the IMX-2 can act as a smart terminal adapter and call up to two B channels to provide 128 kbps aggregate bandwidth.

The IMX-2 provides command-driven software control of configuration, diagnostics and alarms via a terminal connected to the supervisory port. SNMP over SLIP support is also available.