WinLink™ 1000 User Manual Release 1.9 L-1Appendix LCascaded LinksAbout the RADWIN Cascaded LinksIn Chapter 1, we introduced the IDU-R as device for automatic backup ofleased lines. The IDU-R monitors the status of leased lines, and in the eventof a connection failure automatically switches to the radio link. You maychoose which of the two links is the main link and which is the backup link.It may be configured in cascaded links for multi-hop. The latter situationarises where the trunk to be backed up is longer than the range of Win-Link™ 1000.Figure L-1below shows a simple cascaded link with two hops.Figure L-1: Cascaded Link with two hopsThe trunk to backed up is shown as Trunk2, from IDU A to IDU B. The firsthop is from ODU A to ODU A’. The second is from ODU B’ to ODU B.Installing Cascaded LinksFor most part, installation of the links follows the standard pattern. In boththe Installation and Configuration Wizards, there is an extra window follow-ing Services selection:NoteIf ODU A’ and ODU B’ are sited close together, they may require collocation.
