Radio Otar Capabilities; Sem 5100/5300, Standard 5100; Ucm Equipped 5300; Otar Option Switches - E.F. Johnson Company 5300 SERIES Operating Manual

3. KMF RSI - This RSI is normally 9,999,999 and
should not need to be loaded since it defaults to this
number.
4. MNP (Message Number Period) - Load the proper
message number period into the radio (typically
1000). Refer to Section 11.4.6 for more information.
5. Verify that the above information was properly
stored in the radio by viewing it using the keyloader.

11.6 RADIO OTAR CAPABILITIES

11.6.1 SEM 5100/5300, STANDARD 5100

The OTAR capabilities of the SEM equipped
5100 portable and 5300 mobile and also standard
(Version 1.x) 5100 are as follows. Refer to Section 9
for more version information.
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.
•
AES encryption is supported (with Flash code 1.8.0
or later) but not currently available with OTAR
(future availability is planned).
RSI (Radio Set Identifier)
•
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
CHANGE RSI RESPONSE
SECURE COMMUNICATION (ENCRYPTION)
KEYSET CHANGEOVER
KEYSET CHANGEOVER RESPONSE
DELAYED ACK
HELLO
INVENTORY
INVENTORY RESPONSE
MODIFY KEY
MODIFY KEYSET ATTRIBUTES
MODIFY KEYSET ATTRIBUTES RESPONSE 0x15
NEGATIVE ACK
NO SERVICE
REKEY ACK
REKEY
WARM START
ZEROIZE
ZEROIZE RESPONSE

11.6.2 UCM EQUIPPED 5300

The 5300 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 PCCon-
figure software is the same as described in
Section 11.5.

11.6.3 OTAR OPTION SWITCHES

The following additional option switches can be
programmed with the 5100 portable and 5300 mobile
to control OTAR functions. They are also available as
5100 menu parameters unless noted otherwise.
Change Keyset - Toggles the active keyset between
Keyset 1 and Keyset 2. The new active keyset is
briefly displayed and then normal operation resumes.
When the 5100 menu is used, the current active keyset
is indicated by an asterisk. 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
0x03 in the radio. With the 5100, this function is available
0x04 as menu parameter only.
69
0x05
0x06
0x07
0x0C
0x0D
0x0E
0x13
0x14
0x16
0x17
0x1D
0x1E
0x20
0x21
0x22