Cabletron Systems Cabletron CyberSWITCH CSX5500 User Manual

Also see for CyberSWITCH 5500: Quick start Manual

Contents

Central Site Remote Access Switch 97HARDWARE I NSTALLATIONConnecting Adapter Inter-Board CablesCAUTION:Failure to line up triangles on LCD cable and WAN adapter’s “1” label may result indamage to the LCD.SUMMARY OF G UIDELINESC ABLING G UIDELINESNow that you have attached all the inter-board cables, refer to the connector-type table and verifythat:1. On BRI-4, PRI-8, PRI-23 and Expander adapters, all TDM bus connectors are connected by a flatbus cable.2. On PRI-23/30 only configurations, all MVIP bus connectors are connected by a flat bus cable.A TDM bus is not used.3. If mixing PRI-23/30s with BRI-4s or PRI-23s, use both an MVIP bus and a TDM bus.4. When a Digital Modem adapter is installed, it needs to connect to the bus through its MVIPconnection.• If part of a PRI-23/30 configuration: the DM adapter is part of the MVIP bus.• If part of a PRI-23 configuration: you need two buses: one TDM bus for WAN card connec-tions, and one MVIP bus connecting DM adapter with MVIP adapter of the PRI-23.• If adapters with only TDM connectors are installed (BRI-4 and PRI-8) and if a DM adapteris installed, then a crossover cable must interconnect the TDM and MVIP buses.TERMINATION G UIDELINESOn MVIP adapters, the MVIP bus should be terminated on both ends of the bus. Ideally, it shouldbe terminated on the MVIP adapter closest to the CPU (usually the PRI adapter). It should also beterminated at the Digital Modem end, on the adapter farthest from the BRI, PRI, or Expanderadapter. Termination is enabled by jumpers on DM-8, and switches on the DM-24, DM-24+ or DM-30+, as described earlier. All other MVIP jumpers/switches on all other adapters on the MVIP busshould not be terminated.