Section A.1 - Application Notes.Step-by-Step Guide
Version 1.3 - 2009-12
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Appendix A - Application Notes
Usually only a subset of the available functionality is of interest to the designer. In addition,
depending on the host system, the electrical interface can be designed in many ways. The
designer can use the step-by-step guide in this chapter as an aid in the design process.
A.1 STEP-BY-STEP
GUIDE
Table 11: Step-by-step guide with Yes and No answers.
Question
Yes
No
Are you going to integrate the device
in a metal enclosure?
The internal antenna models can-
not be used. Use the OZS311x or
OZS311x.
You are free to choose
between the products. The
internal antenna models are
lower cost and are easier to
design-in. However, an
external antenna could give
better range.
Do you wish to use logic level when
communicating with the OEM Serial
Port Adapter?
See section A.2.2.1 for electrical
design.
Go on to next point.
Do you want to use RS232 as the
physical serial interface?
See section A.2.2.2 for electrical
design.
Go on to next point.
Do you want to use RS485 or RS422
as the physical serial interface?
See section - A.2.2.4-A.2.2.4 for
electrical design.
Go on to next point.
Are you using a 5V host system?
See section A.2.1, Figure 10 for
electrical design.
See section A.2.1, Figure 9
for electrical design.
Do you wish to connect LEDs to the
device?
See section A.2.2.4 for design
examples for connecting the LEDs.
Go on to next point.
Do you want to detect the status of
the module with a controller?
See Chapter 3, Table 8 for status
detection and section A.2.2.4 for
electrical design.
Go on to next point.
Do you wish to utilize the restore
switch?
See section A.2.3.3 for electrical
design.
Go on to next point.
Do you wish to utilize the Function
switch (“Connect on external signal”)?
See section A.2.3.4 for electrical
design.
Go on to next point.
Do you want to manually reset the
module?
See section 0 for electrical design.
Use a double row connector. See
section 5.2.1.2.
