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Driving reliable wireless security

The expansive site at a large vehicle manufacturing plant in the Eastern Cape was not conducive to the laying of cables for an alarm system to protect the premises. The manufacturer requested local security system integration company, Atlas Security, to find a wireless system that would provide uncompromising perimeter intruder detection.

After consultation with Ajax distributor, Elvey, the decision was made to deploy several Ajax wireless products that were able to seamlessly integrate with existing third-party point-to-point beams. The PoC and inception took place in the fourth quarter of 2021.

The scope of work called for the supply and installation of an Ajax MultiTransmitter, the Hub2 Plus, several Motion Protect PIRs, Door Protect units, ReX range extenders and StreetSirens. The Hub2 Plus provides a communications platform between the third-party beams and the Ajax products.

“The Ajax MultiTransmitter has allowed Atlas to bring in the third-party wired outdoor beams, thereby keeping costs low and retaining the legacy equipment for the client. This is particularly advantageous to clients who wish to retain their current investment by adding third-party elements and synergistic Ajax products to the entire Ajax ecosystem,” says Ingo Mutinelli, head of sales in southern Africa for Ajax Systems.

Mutinelli explains that the Ajax wireless technology route was the perfect solution for this site and is characterised by its superior communications range using ReX range extenders, Hub2 Plus and several MotionProtect PIRs, DoorProtect opening detectors and StreetSirens, at various points on the site. “The client was so pleased with the performance of the technology that they are planning for future expansion of the system on a further four sites, with work having already started on the second site.”

Wireless security technology with extended range

The MultiTransmitter communicates with a hub via an encrypted Jeweller radio protocol. This is a TDMA technology developed by Ajax Systems for uninterrupted communication with devices. Jeweller detects jamming attempts, switches to the backup frequency in case of interference, and allows Ajax wireless devices to run on battery power for years. “Jeweller basically regulates the amount of power that the device needs to transmit to the hub effectively, and in so doing saves on power usage when closer to the hub,” says Mutinelli.

ReX is the radio signal range extender that boosts the range of all Ajax security system devices and manages their communication with the Hub2 Plus. The intelligent radio signal range extender enables users to place Ajax devices at a considerable distance from the hub for protecting multi-storey offices, detached buildings and even production plants. Connecting five ReXs to the security system extends its coverage to up to 35 km².

“ReX integrates the devices into an autonomous group within the system. The extender takes full control of the situation if the connection with the hub is interrupted for some reason. If one of its detectors sends an alarm signal, ReX may activate the siren to attract attention to the incident and scare off the burglar,” says Mutinelli.

Whenever MotionProtect Outdoor detects motion, LISA monitoring software analyses and compares signal forms from two sensors in real time. If the signal forms are similar, the alarm is raised.

The DoorProtect wireless opening detector notifies of first signs of room intrusion by means of a broken door or window. It can be mounted on all types of doors, including those with a metal base.

StreetSiren responds to alarms and tampering by activating the buzzer and LED frame in less than a second. The tamper button triggers when the enclosure is opened or broken, and the accelerometer triggers when somebody’s attempting to move or dismantle the siren. StreetSiren has a built-in LED to indicate when it is armed or disarmed, and it illuminates when the system goes into an alarm condition.

“The Ajax wireless range of products is ideal from a budgetary perspective for sites like this one, where range is critical and where existing hardwired products can be used,” says Mutinelli.

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