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National Instruments Corporation
13
NI 9792 WSN Real-Time User Guide and Specifications
Connecting the NI 9792 to a Network
Using a standard Category 5 (CAT-5) or better Ethernet cable, connect the NI 9792 to an Ethernet
network using the Ethernet port 1 on the NI 9792.
Caution
To prevent data loss and to maintain the integrity of your Ethernet installation, do
not
use
a cable longer than 100 m. If you are using 100 Mbps Ethernet, National Instruments recommends
using a CAT-5 or better shielded twisted-pair Ethernet cable.
Note
You will configure the IP settings and install software on the NI 9792, as described in the
Configuring IP Settings and Installing Software on the NI 9792
section, after connecting power and
powering the NI 9792 on.
The host computer communicates with the NI 9792 over a standard Ethernet connection. If the host
computer is on a network, you must configure the NI 9792 on the same subnet as the host computer. If
neither the host computer nor the NI 9792 is connected to a network, you can connect the two directly.
If you want to use the NI 9792 on a subnet other than the one the host computer is on, first connect the
NI 9792 on the same subnet as the host computer. Use DHCP to assign an IP address or reassign a static
IP address for the subnet where you want it to be and physically move it to the other subnet. The first
time you configure the NI 9792, you must also install software on it. Contact your network administrator
if you need assistance configuring the host computer and NI 9792 on the same subnet.
Note
You must connect Ethernet port 1 to configure the NI 9792. You cannot configure the NI 9792
through Ethernet port 2.
In order to use Ethernet port 2, you must assign a static IP address to the port using MAX. The IP address
must be on a different subnet than the IP address of Ethernet port 1. You cannot use DHCP with Ethernet
port 2. For more information about using Ethernet port 2, go to
ni.com/info
and enter the info code
dualenet
.
Wiring Power to the NI 9792
Caution
You
must
use a UL Listed ITE power supply marked LPS with the NI 9792. The power
supply must also meet any safety and compliance requirements for the country of use.
Caution
You
must
install the NI 9792 and tighten the captive screws before you apply power to the
NI 9792. Installing the NI 9792 while power is applied to it can cause damage to the device.
1.
Install the ferrite shipped with the NI 9792 across the negative and positive leads of the power
supply, approximately 50–75 mm (2–3 in.) from the ends of the leads near the NI 9792, as shown
in Figure 10.
Figure 10.
Wiring Power to the NI 9792
