A 16-channel version of the SerDes Test Modules for VPX systems is available. The modules allow testing and pre-emphasis of the SerDes signals to ensure signal performance of the system. The 16-channel SerDes modules are designed to plug into VPX backplanes and directly test the channel compliance. They can be used to test VPX switch and node cards and/or the backplane channels without requiring external equipment or special test fixtures. The modules provide a quick and efficient look at the "vital signs" of the signals in the VPX system.