The GPS Receiver is a four-way splitter, sending NMEA location data simultaneously to four external RS232 host devices.
It is designed to eliminate the need for multiple GPS units and external antennae at an installation and guarantees that each host receives identical positional information at exactly the same time.
Each of the four host ports are galvanically isolated from each other. Two of the ports are able to power the GPS Receiver separately or concurrently, providing power supply redundancy. Both power supplies are galvanically isolated from each other.
Three of the host ports use MIL-Spec bayonet connectors, affording 3kV(peak) isolation. Host port 1 allows use of a less expensive XLR connector, affording lower galvanic isolation.
External antennae can be connected by way of 50 ohm TNC connector. The external antenna may be active , (with LNA), or passive. The antenna cable shield is connected to the metal chassis of the GPS Receiver and +3.3Vdc power is fed up the centre conductor to supply the LNA inside an active antenna.
In addition to serial NMEA data the three MIL-C connected hosts are provided a +/- 11ns accuracy 1Hz pulse that is available whenever the GPS Receiver has a 3D positional lock.
Each of the four hosts are able to transmit proprietary sentences to the GPS receiver to alter its output. Please note that all four hosts always receive identical serial data from the GPS Receiver.
