Multiplexer Expansion

To handle large channel counts, you can expand the size of the multiplexer with additional NI SCXI-1127/1128 switch modules. The NI SCXI-1127/1128 supports the HVAB with a special adapter. The NI SCXI-1357/1358/1359 installed at the rear of the module connects all the commons of each NI SCXI-1127/1128. For example, in a 2-wire 32×1 multiplexer, two NI SCXI-1127/1128 modules can create a 64×1 2-wire multiplexer with an NI SCXI-1359. The output signal can easily be routed to an NI 4070 DMM to be measured. In the same topology, and with a NI SCXI-1357, you can create a 128×1 2-wire multiplexer with four NI SCXI-1127/1128 modules.