Tait Communications has followed up its DMR Tier III system introduced in 2012 with a Tier II system. The system is the result of a partnership with Selex ES, as it uses the latter’s base station. As well as offering DMR Tier II conventional the base station also provides a simulcast solution.
Chris Cant, product and solution specialist at Tait, explained: ‘The DMR Tier II system is not on release yet. It is due in the middle of next year. We are working on the mandatory Tier II standards and then we’ll look at the optional ones and some possible proprietary standards. One of the reasons we have worked with Selex ES is that the price point for our DMR Tier III solution can be too expensive for most Tier II users.’
Tait also had its quad-play DMR Tait 9300 terminal on show. These can be used for analogue conventional, MPT 1327, DMR Tier II conventional and DMR Tier III trunking – all supported by a single firmware version. As such, the radios offer customers an easy migration path from analogue to digital and from DMR Tier II to III.
Tait also demonstrated its GridLink radio modem, which will be able to support most commonly used utility protocols, for use on SCADA applications and for distribution automation on smart grids. The modem is designed to sit in remote areas and can be pole mounted or installed in roadside boxes.
GridLink reports information registered by the sensors and transmits it to a SCADA control room application in the utility. It can also receive instructions remotely should it need to be upgraded or execute a command. In terms of connections it supports Serial and Ethernet, while Wi-Fi and Bluetooth are also being looked at.
Also on show was Tait’s BioLink application – a body worn sensors that measures a person’s heart rate, breathing, activity, core temperature and position of the body (man down). Individual readings are displayed on a screen for a controller to monitor, along with an aggregated overall confidence rating for the person. It also has a system confidence reading to measure whether the radio link is working.
BioLink is worn next to the skin and the information is transmitted to the wearer’s radio via Bluetooth and then from the terminal to the radio system. It operates using an easily chargeable Lithium battery, which should last a full day. At present Tait has it rigged it up to a P25 radio system, but it can be adapted to any radio standard.
The application is particularly aimed at fire fighters in training exercises and the like. A further development might involve mapping the person on a map using the radio’s GPS function. Other measurements, such as ambient humidity readings, could also be added depending on customer need.