Motorola 68P81083C10-C manual Data Operation, Secure Keyload and Erase

Conventional Functions: In monitor, only calls from radios with the same encryption key will be heard. Calls with a different key will be heard as noise. Trunking Functions: When secure transmit is control- led by the secure button (4), during a talk group or private call you can only change from clear to secure operation. During a telephone interconnect or fail- soft call you can change from clear to secure opera- tion, or from secure to clear. During an emergency call NO change is possible.

Secure Keyload and Erase

An encryption key must be loaded from a Key Variable Loader (KVL) that corresponds to the encryption type of the radio.

Disconnect the microphone cable from the control- head and attach the keyloader cable. The display shows “KEYLOADING”, and normal transmit and receive is disabled. Refer to the KVL instruction man- ual for loading procedure.

Note: For some earlier radio models, enter the keyloading mode by pressing and holding the secure button (4) until the display changes showing the secure menu's first item. Scroll to the “KEYLOAD” choice, and press the select button. To exit, press the home button.

When the key has been loaded successfully, the radio will sound one long beep.

To erase a key, press and hold the secure button (4) until the display changes showing the secure menu's first item “ERASE KEY”, and press the select button. When key erase is complete, the display will show “ERASED”.

Note: If battery power is removed from the radio for more than 3 days, the radio may lose its encryption key.

Data Operation

If your radio is programmed for data operation, you may send and / or receive data messages from a data terminal. While sending or receiving data, the radio will display

DATA TRANSFER

DATA TRANSFER

Any button press will cause the radio to interrupt the data transfer and return the radio to normal operation. Please contact the person in charge of your radio sys- tem for further information.

MCS 2000 Models II & III	68P81083C10-C
English	page 17