Kenwood NXR-1700 Function Reference

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8 NXDN DIGITAL COMMUNICATIONS / 8.5 Radio Access Control131FUNC (E)/ Ver 2.008.5 Radio Access ControlRadio Access Control is the function which prevents an unauthorized transceiver from accessing the system. Accesscontrol is performed by the repeater verifying the transmission from the transceiver by using the Radio Access ControlKey after a common Radio Access Control Key for authentication for the transceiver and the repeater is configured.Radio Access Control is applied to voice communication and data communication. However, it is not applied to voicepackets and data packets that are output to the network.When the repeater transmits by using the Mic PTT, External PTT, Console, or SIP Phone, the repeater transmits withRadio Access Control enabled. The transceiver which has received the transmission from the repeater verifies byusing own Radio Access Control Key. If the transceiver is authenticated, the transceiver opens the squelch.Table 8-6 Radio Access ControlConfiguration DescriptionRadio Access Control Key For Radio Access Control Key, one authentication key is configured for thesystem. For this reason, the repeaters and transceivers in the system musthave the same Radio Access Control Key.Accept Type In Accept Type, the behavior of Radio Access Control is configured for eachchannel.Normal Radio Access Control is disabled. The transceiver with Radio Access Controlenabled cannot be used.Authentication Radio Access Control is enabled. The transceiver of which Radio AccessControl Key does not match cannot be used.The repeater verifies the transceiver transmission by using the Radio AccessControl Key. If authentication succeeds, repeat transmission is permitted, and ifauthentication fails, repeat transmission is prohibited.Both The transceiver with the matching Radio Access Control Key and thetransceiver with Radio Access Control disabled can be used together.If the transceiver authentication fails because the authentication key does not match or because the authentication keyhas not been configured, the behavior in each Operation Mode is as follows:Table 8-7 Items of Operation Mode and Behavior in Each ModeOperation Mode ModeAnalog Mode NXDN ModeSimplex N/A Transfer rejected *2Duplex N/A Transfer rejected *2Repeat N/A Repeat rejected*1*1 Repeat rejected: Repeat transmission does not occur even if a call from the transceiver is received. Also, transfer to the networkis not performed.*2 Transfer rejected: Transfer to the network is not performed even if a call from the transceiver is received.