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Wireless Sensor Network Accessories

plugs. The NI WSN-3293 contains four additional sizes of I/O gland inserts:

2-, 4-, 6-, and 10-hole inserts and one plug.

Figure 2. NI WSN-3291 Outdoor Enclosure with NI WSN Measurement Node (not included)

Power Supplies

These power supplies deliver external power to the NI WSN gateway or

measurement nodes. Requiring a 100 to 240 VAC, 47 to 63 Hz, and 0.4 A input,

the desktop power supply provides 12 VDC and up to 1.25 A, delivering up

to 15 W to the device. The desktop supply is rated for 0 to 70 °C operating

temperatures, and the power connector is a 3.5 mm, two-position MINI-

COMBICON connector. You must purchase region-specific power cords for

the desktop supply separately.

The PS-5 is a DIN-rail-mountable, 24 VDC power supply that you can use

to deliver power to the NI WSN gateway or measurement nodes, but NI

recommends it for the gateway. The PS-5 supply delivers up to 5 A of current

and is rated for operation from -25 to 60 °C. You can wire two PS-5 supplies in

parallel to deliver up to 10 A. NI recommends the PS-5 for industrial installations.

Figure 3. Desktop and PS-5 Power Supplies for NI Wireless Sensor Networks

Connectivity Accessories

NI WSN measurement nodes are shipped with a built-in, two-position MINI-

COMBICON power connector and an 18-position, side-entry, screw-terminal I/O

connector. The NI WSN-3284 kit contains two extra 18-position screw-terminal

connectors and labels for the NI WSN-3202 analog input node, including

one top-entry connector and one side-entry connector. (The NI WSN-3285 kit

contains one top-entry connector and one side-entry connector, with labels for

the NI WSN-3212 thermocouple input node.) You can also obtain four extra

two-position power connectors to use with NI WSN Ethernet gateways or

measurement nodes.

In addition, NI offers a power connector backshell kit that contains a strain

relief attachment for the two-position power connector on the Ethernet gateway

and measurement nodes. This attachment clips on the MINI-COMBICON

connector and includes a zip tie to hold the power cable in place.

Figure 4. NI Wireless Sensor Network 18-Position Screw-Terminal Connectors and Power

Connector Backshell Kit