TiMax Timing Hub

Passive Timing Hub
In order to provide a single cat5 cable run to each sensor from a single point, the passive timing hubprovides the system wtih a means of combining the network and timing signals needed by the sensorand passing the timing signals from the master sensor along the timing chain to downstream sensors.The timing signal is necessary for Time Difference of Arrival operation.If multiple hubs are required, the timing signal can be bridged between them, if this is not possible, eachhub can run it’s own timing master sensor.

Connections

It IS important that the connections in the Hub are sequential, if there are less than 8 sensors connected to the Hub, there must be no empty Etercon connections between the Master and the highest number slave so if there are 3 sensors they must be connected to Master, Slave 1, Slave 2. If the connectors are not sequential then the timing signal chain will not be complete.

There are 2 ways to run a dual hub configuration:

All sensors running in a single timing tree ‑ the timing signal link between the two hubs makes thishappen.... the sensors on the 'A' hub have one sensor configured as the master (this MUST be connected to the Master position either hub) and the other 7 sensors are configured as slaves. The master sends the timing signal to the 'B' hub on the timing link cable. The 'B' hub sensors are ALL configured as slaves including the sensor connected to the Master connector... the two groups of sensors will then be synchronised.

It is also possible to configure a dual hub system with 2 separate timing trees, in this case the 2 groupsof sensors will not be able determine TDoA data between any sensor on the 'A' timing tree and anysensor on the 'B' timing tree, they will share AoA information.. the result may be slightly reduced tracking performance in overlapped coverage areas where both 'A' and 'B' sensors can see the tag.