Tait TOP Programming And Service Manual

Also see for T2000 Series: User guide User guide Installation guide System manual Information Pack

Contents

Tait TOP Programming And Service Manual Manual pdf 71 page image

M2259-00-200-812 Transcrypt Programming 71Copyright TEL Encrypted Radio Programming and Service Manual02841-0X) connects the OTAR Programmer to the TOP programming radio through theAccessory connector that has all signals required as standard.For more information, see the TOP Programming Cable Specifications on page 74.Note: Ensure the accessory connector is firmly latched, otherwise it may not makeconnection to all the required signals.6.5 Using a T2000 as an OTAR Programming TransmitterThe T2000 programming cable (IPN 219-02835-0X) connects the OTAR Programmer to theT2000 programming transmitter radio through the 9 Way D Range socket fitted to the radio rear.For more information, see the OTAR Programming Cable Specifications on page 74.6.6 Programming a Transcrypt Encryption ModuleRefer to the OTAR programmer manual for software commands and register values.Each encryption module is provided with a sheet for recording programmable settings. As themodule settings cannot be read back, it is strongly recommended that all settings be recorded foreach radio and kept in a secure place.It is important to understand the meaning of the various identifiers in the programmer’s manual.A typical sequence for programming is:1. Briefly transmit in secure mode from the radio to be programmed, and note the module id‘SXnnnn’ which appears on the computer terminal screen.2. Check the radio acknowledges an Annn call, by returning the message confirmation AKnnnn xx on the PCB.3. Enter programming commands as in programmer manual, for such things as system delay.4. The radio confirms a successful operation by returning the message confirmation AKnnnn xx.Note: After a Move Download command (see TR30-3061 Manual), turn the radio off then on,so that the module recognises the new scramble code.6.7 Security CodesSecurity CodesNote: When programming a Transcrypt module, you may wish to change the defaultTranscrypt security codes. See the Transcrypt programming manual for moreinformation on standard codes, and instructions for changing them if necessary.Transcrypt assigns each customer a unique master code, and programs modules with this duringmanufacture. The security of an encryption module is provided by the total code. This is a verylarge number, resulting in too many different codes for an eavesdropper to find any code by trial.This total code is a combination of the master code in the programmer used to program themodule, and the scramble code in the module. The master code acts as a customer code,preventing accidental use of a scramble code in one fleet, which would allow decrypting ofTranscrypt Identifier DescriptionUnit ID ANI for individual module addressingGroup number ANI Group number for paging or alerting a group of radiosElectronic Serial Number (ESN) = MainnumberSerial number for controlling access to parameter changesScramble Code Unique multi-digit code sets which codes module candecipher.