NI 9949 Accessory User Guide
2
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NI 9949 Dimensions
The NI 9949 has outer dimensions of 65.6 × 21.3 × 31.5 mm
(2.58 × 0.84 × 1.24 in.), as shown in Figures 2 and 3.
Figure 2.
NI 9949 Dimensions
Figure 3.
NI 9949 Dimensions and Hole Clearance
Connecting the NI 9949
Use an RJ-50 cable to connect the NI 9949 to devices with RJ-50
receptacles, such as the NI 9237 with RJ-50 and the SCXI-1314T. The
NI 9949 routes each pin of the RJ-50 receptacle to the corresponding screw
terminal, where 1–10 represent the pin and terminal numbers and S
represents the shield of the RJ-50 connector. For example, if you connect
the NI 9949 to the NI 9237, pin 1 of the NI 9237 RJ-50 receptacle connects
to terminal 1 of the NI 9949 screw-terminal connector. Refer to Figure 4
for a diagram of the RJ-50 and screw-terminal connectors on the NI 9949.
Refer to the device manual for information about device pin assignments.
Note
National Instruments does not recommend using an RJ-45 cable with the NI 9949
because it can physically damage pins 1 and 10 on the device, and thus permanently
disable shunt calibration no matter what connector you use.
65.6 mm (2.58 in.)
21.3 mm
(0.84 in.)
31.5 mm
(1.24 in.)
Holes for
Tie Strap
Ø 4.6 mm (0.18 in.)
Ø 8.9 mm (0.35 in.)
