X-COM's line of COTS Naval Tactical Data System (NTDS) switching products can be combined to create flexible, rapidly re-configurable, easy to control and highly reliable switching networks.

Typically used in shore based test, evaluation and training commands, the FX-4P and FX-4S are normally used to link remotely located NTDS equipment, such as radar or sonar units to a central switching center.

FX-4P
For this type of application, a FX-4P would be located at the remote site, within normal NTDS cable length of the equipment. The two channel group capability can be used to allow two NTDS units to alternately share a single fiber optic link or to allow the remote equipment to be connected to a local control panel for test and maintenance purposes and connected to a central switching center when desired for other purposes. The fiber optic link from the FX-4P can be connected to another FX-4P or to an optional fiber optic multi-function card in a X-COM XPS-32 matrix switch. When connected to a XPS-32, the switch matrix has direct access to the remote equipment in a fully transparent manner as if the equipment were connected directly via NTDS cables.

XBER-4
Normally used at shore based test, evaluation and training environments, the
XBER-4 is typically used to verify the link integrity and quality of communication links that are routed through transparent active and passive switch channels. The unit generated a user configurable number of pseudorandom packets which are normally looped through the switch and compared bit by bit or packet by packet in order to meadure and record the link’s actual error rate performance. The XBER-4 provides a means for technicians to directly measure the quality of NTDS switch channels and can significantly reduce system troubleshooting time and effort.