70824InstallationConnector overview40708OptionVHF 2VHF 1 MF/HFDC SupplyInm-C 1Inm-C 2The Alarm Panel will connect to 5 transceiver units (2 × VHF, 2 × Inmarsat-C, and 1 × MF/HF) each of which is provided a dedicated connector on the rear side of the Alarm Panel.Auxiliary interfacesThe AP5065 Alarm Panel provides, through the option connector an auxiliary RS-422 linewith a separate Rx and Tx pair, that can be connected to external equipment for monitoringof the Alarm Panel state. Unless specific installation instructions describes otherwise, thisinterface should not be connected.For further information please refer to Appendix A on page 16.The power connector also provides a Service interface connection that may be used forfuture maintenance of the Alarm Panel. Leave this disconnected for normal use.