The TB-2709 is a terminal block assembly consisting of nine SMB connectors and a 14-pin I/O connector. The terminal block assembly connects directly to the front panel of National Instruments PXI-6122, PXI-6123, PXI-6132, and PXI-6133 devices, eliminating the need for an external cable.
If the device is damaged, turn the device off and do not use it until service-trained personnel can check its safety. If necessary, return the device to National Instruments for service and repair to ensure that its safety is not compromised.
Do not substitute parts or modify equipment. Because of the danger of introducing additional hazards, do not install unauthorized parts or modify the device. Return the device to National Instruments for service and repair to ensure that its safety features are not compromised.
To connect the terminal block to the PXI module I/O connector, refer to Figure 2 as you complete the following steps: Caution Do not force the terminal block when inserting it into or removing it from the PXI module I/O connector. Signal Descriptions Figure 3 shows the front panel of the TB-2709, and Figure 4 shows the TB-2709 block diagram.
TB-2709 Switch Configuration Floating Source Signal Source – Ground- Referenced Source Signal Source – Measuring Ground-Referenced Signals It is possible to set the switch on the TB-2709 to either the floating or ground-referenced source position to measure ground-referenced signals. However, for best results, use the OFF (ground-referenced source) switch position to avoid ground loops.
Do not apply an input voltage greater than 42 V voltages greater than 42 V to it, including the host computer. Overvoltage can also cause an electric shock hazard for the operator. National Instruments is not liable for damage or injury resulting from such misuse. NI TB-2709 Installation Guide Table 3.
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