M2259-00-200-812 Tait Orca Portable (TOP) Encryption 19
Copyright TEL Encrypted Radio Programming and Service Manual
For direct programming, the module is programmed directly, using a TOPA-EA-008G cable 
connected to the radio’s accessory connector.
Note: Any TOP radio can be used for OTAR programming. However, if an encryption 
module is fitted, it is important that the encryption function is turned off when 
programming. 
Note: If a T2000 radio is used for OTAR programming, a T2000 Encryption Flex must be 
fitted to the radio. A module is not required, however, if one is fitted, it is important 
that the encryption function is turned off when programming.
Refer to the following publications for detailed programming instructions
 Transcrypt OTAR Programmer Manual 
 Transcrypt Module Manual
 Transcrypt Programming section (page 69) of this manual 
4.2.1 Midian Module Programming
The Midian VPU-12 module is preprogrammed by the manufacturer and does not normally 
require programming. Its programmable functions can be programmed by open-radio direct 
programming. It does not support OTAR programming. The Midian TVS2 module supports 
OTAR programming of encryption codes only. However, the TVS2 supports direct programming 
of all programmable functions.
Refer to the following manuals for detailed programming instructions
 Midian Programming instructions 
 Midian Module Manual
 Midian Programming section (page 79) of this manual 
Important Additional Information
 Once encryption is enabled, set the function buttons to:
 turn encryption ON and OFF
 access 
Code Change mode (optional)
 set the number of user-accessible codes (optional)
 Economy mode is the factory default, but is not recommended with 
encryption-enabled radios as it will cause loss of sync pulses. This may result 
in failure to decode some encrypted calls after a period of inactivity.
 If the flex version is -06 (or earlier), to enable the radio to operate as a 
standard, unencrypted radio when a module is not fitted, solder-short links 
Link-6 and Link-7 on the flex. This modification will loop the audio back to 
the normal radio path. See the PCB layout section on page 21 of this manual 
to locate the links.
 If radios have no display, ensure no other function (eg incoming selcall or 
repeater talkaround) is programmed to utilise the orange LED, or it will be too 
difficult to determine encryption status.
4.3  Programming the Encryption Module
Note: When using a TOP radio as a programming transmitter, if an encryption module is 
fitted, ensure the encryption function is turned off.