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Table of Contents
Summary of Contents for Magellan U-Link TRx
- Page 1 PRELIMINARY U-Link TRx Radio DATA MODEM User Guide...
- Page 2 No part of this document may be reproduced or transmitted (in electronic or paper version, photocopy) without MAGELLAN consent. This document is subject to change without notice. All trademarks mentioned in this guide are the property of their respective owner.
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Page 3: Table Of Contents
Normal mode ............................5 AT commands ................................6 General commands ........................... 6 Registers description ..........................6 Electrical Specifications ............................7 About this document This guide describes the U-Link TRx devices, their options and accessories. Ref. 09-03-V1.0... -
Page 4: Compliance To Fcc Us/Canada
The U-Link TRx must be supplied from a DC voltage source. The input DC power voltage range is 9V up to 28V, and the total power consumption is less than 1.5A under 12V at full RF power with an antenna connected on the RF port output. -
Page 5: Serial Link Wiring
U-Link TRx User Guide This input is protected against reverse polarity, and short transient voltage by a Transil protection. TX-RX + DC Supply -. A light continuously on when the transceiver is powered on. The color of this light is changed according to the selected serial... -
Page 6: Framing Modes
U-Link TRx User Guide A dual color light indicates the stae of the U-Link TRX : • Green when the data are received, and red when data are transmitted. Green light indicating data reception, shall represent the activity on the serial link of the receiver, and the red light indicating data emission, shall represent RF activity at the output of the transmitter. -
Page 7: Operating Modes
U-Link TRx User Guide Operating modes Two operating modes are available: Command mode (usage of AT commands) Normal mode (Serial data are transmitted on radio link) At power up the UHF radio device is in normal mode: it is able to send or receive data to or from the radio link according to its current parameter configuration. -
Page 8: At Commands
Sxxx=y<cr><lf> for each register. The command ends with a double <CR><LF> sequence. AT/V Software version display. The response has the following format: “TRx Magellan : Narrow band 450-470MHz 12.5kHz UHF transceiver Vxx.yy<cr><lf>” Restore the register default values. Note that S235 is not restored by ATR. -
Page 9: Electrical Specifications
U-Link TRx User Guide S251 Over the air format 0 transparent mode DSNP mode S252 CSMA mode Disable CSMA mode Enable CSMA mode Check if channel is free with RSSI before transmitting. Response is “OK” if channel is free, and “KO” if channel is busy. - Page 10 U-Link TRx User Guide The frequency range is 450MHz up to 470MHz. Frequency Range Input RF filters bandwidth is the central frequency adjusted in factory +/- 3MHz. The channel spacing is 12.5 kHz. Channel Spacing The transceiver is able to process GMSK BT=0.5 modulation with raw data throughput Modulation of 9600 bits/s.