E F Johnson Company 2425372 Benutzerhandbuch

INVENTORY

0x0D

INVENTORY RESPONSE

0x0E

MODIFY KEY

0x13

MODIFY KEYSET ATTRIBUTES

0x14

MODIFY KEYSET ATTRIBUTES RESPONSE

0x15

NEGATIVE ACK

0x16

NO SERVICE

0x17

REKEY ACK

0x1D

REKEY

0x1E

WARM START

0x20

ZEROIZE

0x21

ZEROIZE RESPONSE

0x22

The 5300 ES UCM versions (see Section 9) use the Motorola UCM encryption module. 
Therefore, the OTAR capabilities are determined by that module. All capabilities of the 
Motorola KVL and KMF are supported. Initial radio programming by the PC Configure 
software is the same as described in Section 11.5.

The following additional option switches can be programmed with the 5300 ES mobile to 
control OTAR functions.

Change Keyset - Toggles the active keyset between Keyset 1 and Keyset 2. The new 
active keyset is briefly displayed and then normal operation resumes. To change to the 
other keyset, highlight it and press the <F2> key.

Clear/Secure Select - This enables and disables encryption regardless of whether 
OTAR is used. Refer to Section 11.3 for more information.

Erase Keys - Erases all TEK and KEK keys contained in the radio.

Key Select - This allows a different key to be selected for the current channel or group 
(conventional channels only). Refer to Section 11.2.4 for more information.

OTAR Rekey Request - Sends a message which tells the KMF that the radio is on the 
air and requests rekeying. The following status messages are displayed which indicate 
the progress of this function.

Rekeying - A radio-initiated rekeying session is in process.