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National Instruments 776572-30 Matrix/Multiplexer Switch Module

Part number 776572-30 is the identifying part number for the National Instruments SCXI-1130 Matrix/Multiplexer Switch Module. The module features 16 interconnected banks of 16x1, 1-wire multiplexers that can be used in various combinations (1-wire 256 × 1 multiplexer, 2-wire 128 × 1 multiplexer, 2-wire octal 16 × 1 multiplexer, 1-wire 4 × 64 matrix, 2-wire 4 × 32 matrix, independent, etc.). 

The 776572-30 has a maximum switching voltage of .60 VDC, 30 VACrms (CAT I). The maximum current per terminal or internal path is 0.4 A while the maximum switching power per channel is 10 W. As for the power requirement, the module draws 50 mA at +5 VDC, 170 mA at +18.5 VDC to +25 VDC or –18.5 VDC to –25 VDC. 

The input trigger on the 776572-30 can come from SCXI trigger lines 0–7, front panel, or the rear connector. The minimum pulse width is 150 ns. On the other hand, output triggers also have destinations that are the same as the input trigger sources. The pulse width is programmable between 1 μs to 62 μs.

 The 776572-30 measures (7.8 × 1.2 × 6.8 in.) in physical dimensions and weighs 1020 g(2 lb 4 oz). It features reed relays having rhodium as the contact material. The mechanical life of the relays is typically 1 × 10^9 cycles while the electrical life depends on the load being used. The simultaneous drive limit is 64 relays. Two 176-pin docking station plugs are used as front panel connectors. 

The recommended temperature range for the operation of the 776572-30 is  0 °C to 55 °C  at a relative humidity of up to 5% to 85% RH. Likewise, the device is only meant to be used indoors within a maximum altitude of 2000m (must be inside a suitable enclosure for outdoor use). On the other hand, it can be stored at –20 °C to 70 °C. The device meets the following safety standards for electrical equipment for measurement, control, and laboratory use: IEC 61010-1, EN-61010-1, UL 61010-1, and CSA 61010-1.