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SMART I
S
NSTALLATION
TANDARDS
Guidelines
When selecting RS-232 cables, make sure the cable is not a "null" modem cable. Unless they
are specifically required, null modem cables should not be used except as a testing cable
when troubleshooting connections.
Null modem cables can be identified by the word "null" stamped on them. Null modem cables
are also characterized with a crossover of the transmitter and receiver pins.
Third-party options
Refer to
Appendix A: Third-Party Referrals
on page 62 for a list of companies that sell this type
of equipment.
Digital Visual Interface (DVI)
Digital Visual Interface (DVI) is a video display interface used to connect a video source (such
as a computer) and a display device (such as a monitor). DVI was designed as a digital
replacement for the analog VGA connection.
If only one end of a connection uses DVI, you can use an adapter or converter to make the
connections compatible. See
Cable Adapters and Converters
for more information.
The two most common versions of DVI connections are shown below.
SMART products with a DVI connection
Refer to the product's specifications to see if it supports this type of connection.
IMPORTANT:
Although DVI is typically a video-only connection, some audio source devices
can use DVI to send audio. In this case, you must convert the DVI cable to an HDMI
connection to connect it to the interactive display. Refer to the source device's documentation
to see if it supports DVI audio. Otherwise, if you need to include audio and other data (such as
touch), you will need to use a connection other than DVI.
Minimum requirements
There are no minimum requirements for selecting DVI cables.
See
General Cable Best Practices
on page 30.
37 smarttech.com/kb/171035
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