E.F. Johnson Company 5300 ES Series, Operating Manual

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10-14 5300 ES Series Mobile Radio Operating Manual March 2008
Secure Communication (Encryption)
KMF RSI - This RSI is normally 9,999,999 and should not need to be loaded since it
defaults to this number.
Verify that the above information was properly stored in the radio by viewing it using the
keyloader.
10.6 Radio OTAR Capabilities
The OTAR capabilities of the SEM-equipped 5300 ES mobile radio are as follows.
Keysets
• Up to three keysets are used and it is assumed all three are always present. Keyset IDs 1
and 2 are for TEKs and only one is active at a time. Keyset ID 255 is for KEKs and is
considered active all the time
• Each keyset can have up to 128 keys. However, 16 or less are normally used.
Radio Set Identifier (RSI)
• One individual RSI and it is usually initially the same as the P25 Unit ID.
• One group RSI (usually initially “0”).
• One KMF RSI (usually always 9,999,999).
OTAR Messages That Are Supported
The following KMM Message IDs are recognized by or sent:
CHANGE RSI 0x03
CHANGE RSI RESPONSE 0x04
KEYSET CHANGEOVER 0x05
KEYSET CHANGEOVER RESPONSE 0x06
DELAYED ACK 0x07
HELLO 0x0C
INVENTORY 0x0D
INVENTORY RESPONSE 0x0E