M2259-00-200-812 Midian Programming 85Copyright TEL Encrypted Radio Programming and Service Manual7.5 VPU12-Tait Factory Default SettingsThe screen dump that follows illustrates the current VPU12-Tait module programming interfaceand factory default settings. For information regarding module programming codes andprogramming configuration for your system, see the Midian Programming Manual.7.6 Testing the Midian Encryption ModuleWith encryption off: Check normal power-up of the radio, with the normal display messages and confirmationtones. Check that receive and transmit audio are functioning, using a service instrument or anotherradio on the same channel.With encryption on: Check that receive and transmit audio are functioning, using another T2000 or TOP radiowith the same encryption module, programmed with the same codes, on the same channel. Confirm encryption is active (where a hopping code module is fitted) by listening for theinitial sync burst on the receiving radio Confirm encryption is active (where an inversion code module is fitted) by pressing anyfunction key - the confidence tone will be a higher frequency than normal. Check the Encryption User Interface features – status indicators, encryption settings etc.(See the TOP Encryption User’s Guide information provided on page 37)