Solution
You can connect these devices by using general purpose electrical cables and the cDAQ power adapter (P/N: 780702-01).
The cDAQ power adapter has the same connections as the power input of the cDAQ chassis you're using (Labeled 3 in the following drawing).
You will need to create this connection yourself since the industrial power supplies can be used with different NI products. For this you will need to wire one of the "+" outputs of the PS-14 to the "V" input of the power adapter and the "-" output to the "C" input. You can refer to the following drawing for where to find the outputs of the power supply (Labeled 1 in the drawing).