LINKnet™ OFR400 RF MODULES USER MANUAL INSTALLATION, OPERATION AND MAINTENANCE KAVAL TELECOM INC. 60 Gough Road Markham, Ontario, L3R 8X7 Telephone: (888) 86-KAVAL Web: www.kaval.com E-mail: info@kaval.com Document #DCM000000019, Rev.
LINKnet™ OFR400 RF MODULES ! USER MANUAL DCM000000019 PROPRIETARY STATEMENT © 2000 KAVAL TELECOM INC. All rights reserved. No part of this publication, or any software included with it may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, including photocopying, electronic, mechanical, recording or otherwise, without the prior written permission of the copyright holder. This document contains proprietary information of KAVAL TELECOM INC.
LINKnet™ OFR400 RF MODULES ! USER MANUAL DCM000000019 TA B L E O F CONTENTS 1. OFR400 MODULES .................................. 4 OVERVIEW .............................................................. 4 Theory Of Operation ......................................... 4 MODELS ................................................................. 4 BLOCK DIAGRAM ..................................................... 5 OFR400 RF Module.......................................... 5 MODULE SPECIFICATIONS ...........
LINKnet™ OFR400 RF MODULES ! USER MANUAL 1. DCM000000019 OFR400 MODULES Overview Theory Of Operation An OFR, or On Frequency Repeater, is a radio repeater that simultaneously receives and transmits a single narrow band radio channel on exactly the same frequency. The OFR accomplishes its repeater function without store and forward circuitry, or expensive conventional simulcasting techniques.
LINKnet™ OFR400 RF MODULES ! USER MANUAL Block diagram DCM000000019 OFR400 RF Module Tran smit B o ard R F Ou tp u t 406.
LINKnet™ OFR400 RF MODULES ! USER MANUAL Module Specifications DCM000000019 Frequency Bands See Model Chart Narrowband FM Modulation & Channel Spacing 25 or 12.5 KHz as per Model Chart RF Frequency Stability Tracks Input Signal Exactly Max. RF Output Power 37 dBm RF Output Power Range Power can be reduced 20 dB in 1 dB Steps (AGC Controlled) RF Output Power Variation vs.
LINKnet™ OFR400 RF MODULES ! USER MANUAL Operation DCM000000019 Software Set-up The OFR400 module is shipped pre-configured with the following factory set options: OPTION RANGE OF VALUES DEFAULT VALUE Frequency See Model Chart Order Specific Receive Threshold –110 to -50 dB -89 dB Receive Hysteresis 1 to 10 dB 2.
LINKnet™ OFR400 RF MODULES ! USER MANUAL DCM000000019 Power On Self Test (POST) Each system module automatically performs a self-diagnostics when inserted into the system Card-cage. These tests determine that the unit is a) correctly installed in the Card-cage and b) not damaged in transit. • • • • All six of the LED’s on the front panel will flash 3 times If the LED’s do NOT flash three times, then remove the module, check the power source, and re-insert the module, (See Installation Instructions).
LINKnet™ OFR400 RF MODULES ! USER MANUAL DCM000000019 Normal Operation The OFR400 Module has six LED’s on the faceplate: 1. OPERATING - Under normal operating conditions, this LED will flash GREEN when RF Data is present. 2. STAND BY – Under the control of the Controller Module, the OFR400 Module has the ability to act as a duplex transmitter, sitting perpetually in Stand by Mode waiting for the primary transmitter to fail. This LED should be constant Amber.
LINKnet™ OFR400 RF MODULES ! USER MANUAL DCM000000019 OFR Module Printed: 01.01.
LINKnet™ OFR400 RF MODULES ! USER MANUAL Antenna Installation • • • • • DCM000000019 All Antenna Installation to be performed by Qualified Technical Personnel only. Antenna Installation Instructions and locations below are for the purpose of satisfying FCC RF Exposure Compliance requirements. Note that if multiple LINKnet™ Modules are used, the Instructions below apply to the composite power output of all Modules when transmitting simultaneously.
