EN 300 394-4 contains the Test Suite Structure (TSS) and Test Purposes (TPs) to test the TETRA Direct Mode
Operation (DMO) protocols. EN 300 394-4 is divided into several parts, each one dealing with a different set of layer 3
and layer 2 DMO protocols. The present document deals with TSS&TP for Direct Mode Repeater type 1 (DM-REP1)
Air Interface protocol, data link layer 2 only, while sub-part 1 deals with TSS&TP for DM MS to MS protocol and
sub-part 3 deals with DM-MS operating through Repeater type 1 (MS-REP1) Air Interface protocol
Testing of security features is outside the scope of the present document.
The objective of this test specification is to provide a basis for approval tests for TETRA equipment giving a high
probability of air interface inter-operability between different manufacturers TETRA equipment.
The ISO standard for the methodology of conformance testing, ISO/IEC 9646-1 [3] and ISO/IEC 9646-2 [4], as well as
the ETSI methodology for conformance testing, ETS 300 406 [5], are used as the basis for the test methodology.