Multi-port Serial Card Selection Guide   PCI Express Model Bus COM-Selector RS-232 RS-422/485 Self-Tuner ESD Protection Max. Speed (bps) FIFO Size (bytes) Connector Dimensions (mm) Ports Isolation Ports Isolation VEX-112 PCI Express Yes 2 - - - - - 115.2 K 128 Male DB-9 110 x 94 x 22 VEX-112i PCI Express Yes 2 2.5 kV - - - +/-4 kV 115.2 K 128 Male DB-9 110 x 94 x 22 VEX-142 PCI Express Yes - - 2 - Yes - 115.2 K 128 Male DB-9 110 x 94 x 22 VEX-142i PCI Express Yes - - 2 2.5 kV Yes +/-4 kV 115.2 K 128 Male DB-9 110 x 94 x 22 VEX-114 PCI Express Yes 4 - - - - - 115.2 K 128 Female DB-37 110 x 110 x 22 VEX-114i PCI Express Yes 4 2.5 kV - - - +/-4 kV 115.2 K 128 Female DB-37 110 x 110 x 22 VEX-144 PCI Express Yes - - 4 - Yes - 115.2 K 128 Female DB-37 114 x 101 x 22 VEX-144i PCI Express Yes - - 4 2.5 kV Yes +/-4 kV 115.2 K 128 Female DB-37 114 x 101 x 22 Universal PCI Model Bus COM-Selector RS-232 RS-422/485 Self-Tuner ESD Protection Max. Speed (bps) FIFO Size (bytes) Connector Dimensions (mm) Ports Isolation Ports Isolation VXC-112AU Universal PCI Yes 2 - - - - - 115.2 K 128 Male DB-9 134 x 90 x 22 VXC-112iAU Universal PCI Yes 2 2.5 kV - - - +/-4 kV 115.2 K 128 Male DB-9 134 x 90 x 22 VXC-114U Universal PCI Yes 4 - - - - +/-4 kV 115.2 K 128 Female DB-37 142 x 84 x 22 VXC-114iAU Universal PCI Yes 4 2.5 kV - - - +/-4 kV 115.2 K 128 Female DB-37 133 x 93 x 22 VXC-142(A)U Universal PCI Yes - - 2 - Yes +/-4 kV 115.2 K 128 Male DB-9 134 x 90 x 22 VXC-142iAU Universal PCI Yes - - 2 2.5 kV Yes +/-4 kV 115.2 K 128 Male DB-9 134 x 90 x 22 VXC-144U Universal PCI Yes - - 4 - Yes +/-4 kV 115.2 K 128 Female DB-37 142 x 84 x 22 VXC-144iU Universal PCI Yes - - 4 2.5 kV Yes +/-4 kV 115.2 K 128 Female DB-37 142 x 95 x 22 VXC-182iAU Universal PCI Yes 1 - 1 2.5 kV Yes +/-4 kV 115.2 K 128 Male DB-9 134 x90 x 22
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