Radio Permanent Disable V2; High Assurance Boot; Packet Data - Motorola MTP850 S Product Information Manual

48 | Services and Features
If this association is not removed, the radio could be assigned a new home zone that lies in a cluster where the K-REF
association has not been deleted.
Radio Permanent Disable and Radio Permanent Disable v2 are mutually exclusive selling features.

Radio Permanent Disable v2

Similarly to the permanent disable, once the radio is disabled using the permanent disable v2, it cannot be recovered
over the air. When the radio accepts the permanent disable command, and if the permanent disable v2 flag is enabled
in the codeplug, the radio appears to be inoperable.
• All its MMI interfaces on the radio appear to be disabled.
• All its security key material; GCK, GSKO, DMO SCKs, Ks, DCK, CCK, TMO SCKs, and End-to-End key
material are deleted.
• The radio automatically turns off on powering attempts without any audible/visible indications to the end users.
• The permanent disable flag is set in the codeplug.
Unlike in the permanent disable, a permanent disabled v2 radio can be re-enabled using the software selling dongle. If
you have the software selling dongle, you can read the codeplug and clear the permanent disable flag.
Note: When a radio has been disabled using the permanent disable v2, entering programming mode
procedure is different. For the details, see TETRA Terminals CPS Start-up User Guide (Motorola Part
Number: 6802974C10).
Radio Permanent Disable and Radio Permanent Disable v2 are mutually exclusive selling features.

High Assurance Boot

The radio has a facility that ensures that the code and data flashed in the radio is authentic and has not been altered.
The hardware forces the HAB module to run at boot time. The module checks if all software comes from a trusted
source. The radio is checking the signature of the code and data segments present in the radio using a public/private
key mechanism.
If the HAB authentication of the flashed software fails, it does not allow the radio software to run.

Packet Data

The radio provides, in the TMO, a TETRA bearer service for applications that use the IP protocol. This service is
available to external applications by connecting using the PEI.
The radio supports TETRA standard multi-slot packet data using the IP network layer protocol through Point-to-Point
Protocol (PPP), and TETRA SNDCP protocol. The IP connection is established between Terminal Equipment and
Mobile Terminal, allowing external applications to communicate with Terminal Equipment using predefined IP
addresses.
Note: This IP connection is referred to as the local link. The link established between the radio and the
SwMI is referred to as the wide link. When a wide link has been established, the radio is considered to be
in the wide mode.
Packet data applications reside internally, over UDP, or in an externally connected device connected via an 8-wire
RS232 data port in the radio. Communication to the external radio is initialized using AT commands. Once the
connection is established, the external application may request Point-to-Point Protocol (PPP) mode, and then operates
in PPP mode until the data connection is terminated. The radios can operate both on the single-slot packet data
channel and the multi-slot packet data channel.
The system provides point to point IP connectivity allowing the following datagram exchanges.
• Radio ←→ External Equipment (Terminal Equipment) (for example PC).
• External Equipment (Terminal Equipment) ←→ Network (through radio).
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