WEC8500/8050 Operation Manual Version 5.2Samsung Electronics America page 161 of 5334.2.3 AP Time Synchronization per GroupThe AP can configure its time information using either the time stamp method or the NTPmethod.In the Time Stamp type, the APC periodically transmits the time of APC to an AP and theAP is operating based on the received time. Unless a user changes the configuration, thedefault is Time Stamp type and the interval is set to 7200 seconds (2 hours).In the NTP type, the NTP server information is transmitted to an AP and the APsynchronizes the time with the NTP server. A NTP server list must be created to transmitthe NTP server information to an AP and maximum 10 lists can be added. The ntp-interval(2^N) is the interval when an AP receives the time information from the NTP server.For example, if the ntp-interval is set to 6, an AP receives the time information from theNTP server at every 2^6, i.e. 128 seconds.The APC provides a function for configuring the time configuration method of the AP.Configuring Time Stamp type using CLI1) Go to configure apc ap-time-config configuration mode of CLI.WEC8500# configure terminalWEC8500/configure# apcWEC8500/configure/apc# ap-time-configWEC8500/configure/apc/ap-time-config#2) Configure how to transmit the time information to an AP using ‘ac-stamp’ andconfigure the interval. mode ac-stamp ac-stamp-interval [INTERVAL]3) To check the information, execute the ‘show apc ap-time-config’ command.Configuring NTP type using CLI1) Go to configure apc ap-time-config configuration mode of CLI.WEC8500# configure terminalWEC8500/configure# apcWEC8500/configure/apc# ap-time-configWEC8500/configure/apc/ap-time-config#2) Add the NTP server information to transmit to an AP. Maximum 10 NTP serverinformation can be added. To delete the configured NTP server information, enter ‘no’parameter in front of the command