National Instruments 778278-01 Switch Controller

Part Number 778278-01 is the identifying part number for the National Instruments PCI-4021 Switch Controller. The 778278-01 is compatible with a wide variety of switching modules like the SCXI-1102/B/C, SCXI-1124, the SCXI-116X family, the SCXI 1190/1191, and the SCXI-1127/1128. It comes equipped with a SCXI-based advanced switching system that eliminates the need for any other software.

The 778278-01 is used for multiple purposes: to direct signals over a switch, to excite the data acquisition and measurement devices, and to switch modules with third-party instruments from a PCI or a PXI slot. These controllers are typically attuned with high-voltage backplane adapters like the SCXI-1357/1358 and are also compatible with low-voltage adapters like the SCXI-1362. The switch controller, when used to control switch devices like the SCXI-1102/BC, requires the following components: a SH9MD-9MD cable, the NI-4021 installation guide, an SCXI chassis, a computer, the NI-SWITCH software, and either the SCXI-1357/1358 backplane or the SCXI-1362 low voltage adapter.

To install the 778278-01, first, you must power off your computer, and the SCXI and the PXI chassis. Then, you must install your SCXI module into the SCXI chassis as instructed by the official installation guide. This is then followed by connecting an adapter having the 9-pin round AUX connector to the rear signal connector of an SCXI module. Since this is a PCI device, you must connect it to an appropriate PCI slot. After connecting one end of the SH9MD-MD cable to the 9-pin round AUX connector of the switch controller and the other end of the cable to the AUX IN connector of the adapter in the SCXI chassis, you can then power on the computer and the chassis.