C•CURE 800/8000 Hardware Configuration Guide - Tyco Security ...

Maintaining Cluster Communications for iSTAR Classic & ProModemEthernetSecondaryPath(Dialup) 3Hub2 1ModemMasterFigure 1-14: Communications Wiring on the Secondary PathConnection Between an Alternate Master and the HostIf the master loses its connection with the host and the secondarycommunications path is a connection between an alternate master and thehost, as shown in Figure 1-15 on page 1-38 and Figure 1-16 on page 1-39, thefollowing occurs:• The alternate master establishes a connection with the host via thesecondary communications path.• Cluster members establish connections with the alternate master via thenetwork.• The alternate master sends the cluster members’ messages to the host.C•CURE 800/8000 Hardware Configuration Guide 1–37