Chapter 1. Introduction61200410L1-1 ESU LT User Manual 1-9Bridge/Router ApplicationA bridge or router can be interfaced to the network by usingthe DTE interface. The bandwidth used is programmable atNx56 or Nx64 data rates for E1 or FE1 service. Thebandwidth can be selected as contiguous or alternate. Figure1-6 shows a simple bridge application.Figure 1-6. Simple Bridge Application on a E1 or FE1 CircuitHigh-speedserial interfaceESU LT ESU LTBridge Router Nx56/64E1Nx56/64 Bridge RouterHigh-speedserial interface