meshI/O provides an easy way to connect multiple remote, digital devices where cabling is not readily available or ducting is prohibitvely expensive.
Typically used to connect upstream vehicle detectors to a junction signal controller, a single meshI/O unit will support up to 6 bi-directional digital inputs from inductive loops or other devices such as Traficam®, RADIX® magnetometers and Heimdall® detectors. A second meshI/O unit installed at the controller end of the link converts the wireless transmission back to a digital output for presentation to a controller via screw terminals. From the controller's perspective, the detector appears to be wired directly in.
meshI/O is compatible with any detector which has relay or opto-isolated/switched outputs. It is fully bi-directional with a latency of just 3mS. In-built fault detection will automatically set a UTC controller's fault bit in the event of a dropped link.
Figure 1: Cabinet-grade and external-grade meshI/O units
meshI/O is available in two enclosure formats as shown in Figure 1 above:
An external-grade meshI/O unit built into an iMesh router powered by mains, dc or power-over-ethernet.
A cabinet-grade router where the meshI/O electronics is installed in a roadside cabinet. In this arrangement the meshI/O unit can connect to either a cabinet-grade iMesh router installed alongside or via CAT5 cable to an external-grade iMesh router installed on a nearby pole.
A 'chocolate-block' type connector on the back of the cabinet-grade meshI/O unit provides quick and easy connections (see figure 2).
Figure 2: cabinet-grade meshI/O unit, front and rear views
Figure 3: External and cabinet-grade meshI/O units used for remote wireless detection. Click image to enlarge
Telent
Point 3
Haywood Road
Warwick
CV34 5AH
