Patent ID: 8351338

Claim:
A test system for testing a communication system comprising a plurality of transmitters and receivers coupled in pairs forming a plurality of links, each of the plurality of links having a unique one of the plurality of transmitters coupled to a unique one of the plurality of receivers, the test system comprising: a single tester having an input and an output, for independently testing any link of the plurality of links upon coupling the tester into one of the plurality of links by coupling the tester input to the link's transmitter and the tester output to the link's receiver; a switching system for coupling the tester into any of the plurality of links such that all remaining links of the communication system have a unique one of the plurality of transmitters coupled to a unique one of the plurality of receivers; and a compensator for delaying and/or attenuating signals not passing through the tester, to compensate for a time delay and/or attenuation introduced by the tester.