User's Manual
Table Of Contents
- Part A – Preface
- Warranty
- Important Notice
- FCC Compliance Notices
- Australian Compliance Notices
- Other Related Documentation and Products
- Revision History
- Part B – O Series Overview
- Definition of O Series Data Radio
- O Series Product Range
- O Series – Features and Benefits
- Standard Accessories
- Part C – Applications
- Application Detail
- Part D – Module Pinouts
- Part E – System Planning and Design
- Understanding RF Path Requirements
- Examples of Predictive Path Modelling
- Selecting Antennas
- Part F – Suggested Interface Circuits
Page 13
© Copyright 2008 Trio DataCom Pty. Ltd.
O Series Data Radio – User Manual
PORT A RS232 SERIAL INTERFACE- SIMPLE APPLICATION
C8
100p
R2
100R
C9
100p
C6
100p
R1
100R
C7
100p
RXD_A
TXD_A
+3V3
Radio PIN 2
Radio PIN 1
C1
100n
C2
100n
C4
100n
1
6
2
7
3
8
4
9
5
M2 M1
PORT A
C3
100n
C5
100n
Optional EMC Components
C1+
2
C1-
4
C2+
5
C2-
6
Vs+
3
Vs-
7
VCC
17
GND
16
T1in
12
T1out
15
T2in
11
T2out
8
R1out
13
R1in
14
R2out
10
R2in
9
nEN
1
nSHDN
20
U1
MAX3222E
note: Radio inputs are 5V tolerant, however 3V3 RS232 is recommended
Part F – Suggested Interface Circuits
Port A RS232 Serial Interface