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OFR400 A
Users manual
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Powerwave Technologies OFR400 A Users manual

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LINKnet™
OFR400 RF MODULES
OFR400 RF MODULES
OFR400 RF MODULESOFR400 RF MODULES
USER MANUAL
USER MANUAL
INSTALLATION, OPERATION AND
INSTALLATION, OPERATION AND
INSTALLATION, OPERATION AND INSTALLATION, OPERATION AND
MAINTENANCE
MAINTENANCE
MAINTENANCEMAINTENANCE
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.5
January 20, 2001
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LINKnet™ OFR400 RF MODULES ! USER MANUAL
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© 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. The contents are confidential and any disclosure to persons other than the officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of KAVAL TELECOM INC., is strictly prohibited.
KAVAL TELECOM INC. provides this document as is, without any warranty of any kind either expressed or implied including, but not limited to, the implied warranties of mer chantabi li t y and fitness of a particular purpose. KAVAL TELECOM INC. may make changes or improvements in the equipment, software, or specifications described in this document at any time and without notice. These changes will be incorporated in new releases of this document.
This document may contain technical inaccuracies or typographical errors. KAVAL TELECOM INC. waives responsibility for any labour, materials, or costs incurred by any person or party as a result of using this document. KAVAL TELECOM INC., and any of its affiliates shall not be liable for any damages (including, but not limited to, consequential, indirect or incidental, special damages or loss of profits or date) even if they were foreseeable and KAVAL TELECOM INC. has been informed of their potential occurrence, arising out of or in connection with this document or its use.
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This manual makes reference to trademarks that are the property of other companies. References are used only to refer to the products or services of the trademark owners.
LINKnet™ is a trademark of KAVAL TELECOM INC.
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LINKnet™ OFR400 RF MODULES ! USER MANUAL
TABLE OF
TABLE OF
TABLE OF TABLE OF
CONTENTS
CONTENTS
CONTENTSCONTENTS
1.
OFR400 MODULES ..................................4
O
VERVIEW
Theory Of Operation .........................................4
M
ODELS
B
LOCK DIAGRAM
OFR400 RF Module..........................................5
M
ODULE SPECIFICATIONS
O
PERATION
Software Set-up ................................................7
..............................................................4
.................................................................4
.....................................................5
.......................................6
............................................................7
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Power On Self Test (POST)..............................8
Normal Operation..............................................9
OFR Module....................................................10
A
NTENNA INSTALLATION
........................................11
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LINKnet™ OFR400 RF MODULES ! USER MANUAL
1. OFR400 MODULES
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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. The fact that the same frequency is retransmitted by an OFR means that additional frequency allocations are not required in situations where an existing radio coverage pattern needs to be extended. The most common OFR applications are the extension of above ground signals into buildings, tunnels, vehicles or the extension of radio coverage patterns into outdoor shaded areas such as deep valleys.
From an applications standpoint, an OFR is very similar to a regular two-way radio repeater. On Frequency Radio Repeaters can be combined using regular two-way radio multicoupling or duplexing equipment and have input and output signal characteristics to those of regular transmitters and receivers. The one special consideration in OFR systems is that of input to output antenna isolation. This must be carefully engineered for each installation.
Standard On Frequency Radio Repeaters are designed for indoor use only and are intended for mounting in a standard EIA 19 inch rack. Modular design of OFR circuitry allows for easy servicing, stocking of spares, adaptability and upgrade ability.
Models
IMPORTANT NOTE: The OFR400 UHF LINKnet FM Modules described in this Manual draw about 50% more current than the OFR800 FM Modules. A Maximum of five may be used in a LINKnet OFR1000 Card-Cage with no other modules. With other Modules the maximums are...
With 1 other LINKnet Module: No more than 3 OFR400 UHF Modules With 2 to 3 other LINKnet Modules: No more than 1 OFR400 UHF Modules With 4 or more other LINKnet Modules: No OFR400 UHF Modules
OFR400 MODULE FAMILY
MODEL TYPE FREQUENCY
OFR400-A1 25 KHz Channels 406.125-430 MHz (FM) OFR400-A2 12.5 KHz Channels 406.125-430 MHz (FM) OFR400-C1 25 KHz Channels 450-470 MHz (FM) OFR400-D1 25 KHz Channels 470-490 MHz (FM) OFR400-E1 25 KHz Channels 490-512 MHz (FM)
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Block diagram
RF Output
406.125-512 MHz
Blind-Mate to SMA RF Connector
Power & Control to Backplane
Transmi t Bo ard
UMC Controller Board
Recei ve B o ard
OFR400 RF Module
Buf fers , F ilters, and Linear Power Am plif ier
Gain Control
Power Circuits
Com municat ion Interfaces
Low Noise Pre-Amplif ier Buffer
Micro­Controller with lines to
all Boards
Gain Control
First Loc al Oscillator
First Local Oscillator
Test Osc illator
Amp lif iers
IF Board
2'nd Local Osc illator
2'nd Local Osc illator
First IF Filter
2'nd IF Crystal Filter
2'nd IF Cry stal Filter
First IF Filter
RF Input
406.125-512 MHz
Blind-Mate to SMA RF
Connector
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Module Specifications
Frequency Bands See Model Chart
Modulation & Channel Spacing
25 or 12.5 KHz as per Model Chart
Narrowband FM
RF Frequency Stability Tracks Input Signal Exactly Max. RF Output Power 37 dBm
RF Output Power Range
RF Output Power Variation vs. Input
(over -90 to -30 dBm)
Power can be reduced 20 dB in 1 dB Steps
(AGC Controlled)
+/- 1 dB
Input Dynamic Range -110 to -30 dBm
Input Sensitivity Adjust Range -110 to -50 dBm
Input Hysteresis 1 to 10 dB
Adjacent Channel Selectivity 60 dB Minimum
Transmit Duty Cycle Continuous
Transmit Spurious -13 dBm max
Receive Conducted Spurious -57 dBm Max
Maximum Gain 140 dB
Audio Distortion & Noise <4% Increase
Transmit Key-Up & Key - D o wn Times <2 mS Key-Up, <1 mS Key- Down
Group Delay
RF Connectors
SMA (50Ω) Connectors on back of Card-Cage
<120 uS for 25 KHz,
<160 uS for 12.5 KHz
Module Power Supply Requirements 45 Watts Maximum
Edge Connector & 2 Blind-Mate RF Connectors to
Card-Cage, DB-15 Connector on back of Card-
Connections
Cage provides per-Module Fault Relay,
Interconnect to other Modules, & RS-232
Connection
Front Panel Indicators
Operating, Stand by, Fault, Program Mode,
Receive, Transmit
RF Modules may be configured either via the
Configuration Options
optional Controller Module, or via a PC and an
RS-232 Connection via the Card-Cage.
Operating Temperature Range
-10 to +50
o
C; Consult Kaval for installation specific
forced-air cooling requirements
Operating Humidity Range 10 to 90% RH, Non-Condensing
Size & Weight
9.11” High, 2.00” Wide, 14.00” Deep, 10 lbs, 4.5 kg Max
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Operation
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
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Receive Threshold
Receive Hysteresis 1 to 10 dB 2.5 dB
Time Out 0 to 600 Seconds, or none 300 Seconds
Module Enabled On / Off On
Transmit Power Level 20 to 37 dBm Order Specific
In line with the versatility of the LINKnet
–110 to -50 dB -89 dB
TM
Platform, it is possible to re-configure the OFR400 module in the field. For further information on the modification software and the PC adapter, contact KAVAL TELECOM INC. by E-mail: info@kaval.com
Default values may be changed when an order is placed. Check your order confirmation (shipped with modules) for customized values.
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Power On S elf T est ( 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).
•
If the card is “OK” the LED’s will continue normally. (See Normal Operation)
•
If there is a fault, then the Red Fault LED will remain on. If this occurs, contact
your KAVAL TELECOM INC. Service Representative, (See Warranty / RMA Procedures).
The Power On Self Test is Not an RF test, it only verifies that there is power to the unit and that the logical circuitry is functioning.
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LINKnet™ OFR400 RF MODULES ! USER MANUAL
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. If a Fault should occur with the primary module, the “Stand by” unit will immediately become the primary unit, at which time the Stand by LED will be turned off and the LED’s will show an operating Module.
3. Transmit – This Green LED will be on when a signal is being transmitted
4. Receive – This Green LED will be on when a signal is being received
5. Program – This LED will be constant Amber when the unit is being re­programmed by the Controller Module. This will signify that the unit is powered on but unavailable for use.
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6. FAULT – Red LED, If the internal diagnostics for the module detect a problem, then this LED will remain on
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OFR Module
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Antenna Installation
•
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.
•
The Roof Top Antenna or Antennae for linking to the Donor Site(s) is/are
directional (high gain) Antennae, fixed-mounted physically on the side or top of a building, or on a tower. The Antenna Gain must be no more than 10 dB. If
multiple LINKnet™ Modules are used with output combiners into any one Antenna, and/or multiple Antennae are used on one Roof Top, then the sum of composite powers into all Roof Top Antennae must not exceed 100 Watts maximum. Please consult Kaval Telecom for assistance as required. The
Roof Top Antennae location should be such that only Qualified Technical Personnel can access it, and that under normal operating conditions no other person can touch the Antenna, or approach within 10 meters of the Antenna.
•
The In-Building Antenna connection is via a coaxial cable distribution system
with Signal Taps at various points connected to the fixed-mounted Indoor Antennae. This is shown in the figure in the Introduction. The Indoor Antennae are simple 1/4 Wavelength (0 dB Gain) types. They are used with KAVAL TELECOM INC. 12, 16, or 20 dB Cable Taps. As such the maximum EIRP will be at the first Tapped Antenna, which will be 12 dB below the maximum signal level of the LINKnet™ (+40 dBm); +28 dBm, or 0.63 Watts EIRP. If multiple
LINKnet™ Modules are used with output combiners, then the composite power output of all Modules transmitting simultaneously must meet this maximum EIRP requirement. Please consult Kaval Telecom for assistance as
required. These Antennae are to be installed such that no person can touch the Antenna, or approach within 0.2 Meters.
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ANTENNA INSTALLATION
WARNING
ALL ANTENNA INSTALLATION IS TO BE PERFORMED BY QUALIFIED TECHNICAL PERSONNEL ONLY.
ANTENNA INSTALLATION INSTRUCTIONS AND LOCATIONS ARE FOR THE PURPOSE OF SATISFYING FCC RF EXPOSURE COMPLIANCE REQUIREMENTS, AND ARE NOT OPTIONAL.
ALL ROOF TOP ANTENNA INSTALLATION MUST BE SUCH THAT NO PERSON CAN TOUCH THE ANTENNA, OR APPROACH CLOSER THAN 10 METERS.
ALL IN-BUILDING ANTENNAE INSTALLATIONS MUST BE SUCH THAT NO PERSON CAN TOUCH THE ANTENNAE, OR APPROACH CLOSER THAN 0.2 METERS.
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