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
- Power Supply and Environmental Considerations
- Part F – Mounting and LED Indicators
- Mounting
- Antenna Port Cabling
- Product Labelling
- LED Indicators
- Part G – Specifications
- Appendix – FCC Approved Antennas
Page 13 © Copyright 2007 Trio DataCom Pty. Ltd.
O Series Data Radio – User Manual
Part D – System Planning and Design
Power Supply and Environmental
Considerations
Power Supply
The power supply should provide a clean, filtered DC source. The
radio modem is designed and calibrated to operate from a 3.3VDC
and 5VDC regulated supply.
The power supply must be able to supply sufficient current to
provide clean filtered DC under the full current conditions of the
radio modem (i.e. when transmitting full RF power).
Site Earthing
The radio must not be allowed to provide a ground path from
chassis to (DB9) signal ground or (-) battery ground. Ensure that
the chassis mounting plate, power supply (-) earth, RTU terminal
device, and lightning arrester, are all securely earthed to a common
ground point to which an earth stake is attached.