National Instruments VXI-MXI-Express Series User Manual page 47

Appendix A Specifications
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Additional devices sharing the bus may function, but is not supported by National Instruments.
VXI-MXI-Express Series User Manual
Two Trigger Bus Ports
Physical interface......................................TIA/EIA899 M-LVDS compatible
Bus transceiver...............................................Texas Instruments SN65MLVD080
Maximum trigger bus length ..................20 m of cables
Maximum number of devices on bus .....6
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