E.F. Johnson Company 5100 ES, Operating Manual

Page: 182 / 212

11-8 ES Series Models II/III Portable Radio Operating Manual
Secure Communication (Encryption)
11.4.1 Motorola Third-Party RNC Registration
The 51xx ES portable supports Motorola dynamic data registration. However, if desired,
the radio can be programmed to perform MOT 3rd Party data registration instead of
dynamic registration on the OTAR and Data parameters page. If MOT 3rd Party
registration is selected, the radio must be manually registered on the Motorola RNC
Console by entering the following command:
LCRD 03 06 00 1234 7F xx xx xx 0A 0A 00 07 00 yy
Where, “xx xx xx” is the hex value of the Digital Unit ID programmed. Refer to the
console documentation for the value of “yy” or use “00”. This registration needs to be
done only once.
11.4.2 Programming By Keyloader
The following are the minimum parameters that need to be programmed in the radio to
perform OTAR. It is not necessary to program a TEK to perform OTAR. If the radio does
not contain a TEK, the KMF initiates a warm start sequence in which a temporary TEK is
transferred to the radio to perform the key transfer.
UKEK - This key normally has SLN (CKR) 61440 and Key ID 62880 (F5A0 hex).
Create a key (either AES or DES type as required) and download it to the radio. AES
UKEKs typically use an SLN of 61442 and a Key ID of 62880 (0xF5A0).
Unit RSI - This is normally initially the same as the P25 Unit ID and is set by
programming.
KMF RSI - This RSI is normally 9,999,999 and should not need to be loaded since it
defaults to this number.
MNP (Message Number Period) - Load the proper message number period into the
radio (typically 1000).
Verify that the above information was properly stored in the radio by viewing it using the
keyloader.
11.5 Radio OTAR Capabilities
The OTAR capabilities of the SEM equipped ES Series portable are as follows.
• Keysets