DMR Association announces the successful completion of two Tier III and of one Tier II Interoperability Testing Sessions

The Digital Mobile Radio (DMR) Association today announces the completion of three further successful DMR interoperability test sessions. Two sessions were for DMR Tier III (trunked operation) and the third session for Tier II (conventional operation). The Tier II tests took place between Selex ES and Simoco. The Tier III sessions took place between Selex ES (infrastructure) and Hytera (terminals) and Selex ES (infrastructure) and Tait Communications (terminals).

The completion of these tests brings the total number DMR manufacturers offering DMR IOP Certified Tier II products to 8, those offering DMR IOP Certified Tier III products to 4 and the number of completed DMR bilateral test sessions to 15.

“Developments in DMR technology and the growth of available Tier II and Tier III products and applications are key to the success of the standard in the market in a process of continual improvement. The number of IOP tests is a testament to the rapid uptake of DMR technology as is the growing number of manufacturers that are now selling or in the process of building products built to the standard.” said Andy Grimmett (Simoco), Chair of the DMR Association Technical Working Group.

DMR Tier II Mandatory features tested were: Group Call, Individual Call (PATCS), Individual Call OACSU and All Call.

DMR Tier III Mandatory features tested were: Registration, Single Site Talk Group Voice Call service, Single Site Individual Voice Call service using OACSU on single frequency pair, Single Site Individual Voice Call service using OACSU, Single Site Individual Voice Call service using FOACSU, Control Channel Hunting, Single Site Short Data Message (text).

DMR Tier III Optional features tested in the sessions were: Multisite Talk Group voice call services, Individual Multisite Voice Call service using OACSU and FOACSU, and Multisite Single Site Short Data Messages.

Source: DMR Association