Crest Audio EDL II User manual

EDL II
Environmental
Data Link II
User's Guide
Revision 06
Pacific Crest Corporation
990 Richard Avenue, Suite 110
Santa Clara, CA 95050
[phone]
[phone] (fax)
[email protected]
www.pacificcrest.com
PN: M00635-06

ii
NOTICE
PACIFIC CREST CORPORATION MAKES NO WARRANTY
OF ANY KIND WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. Pacific Crest Corporation shall not be
liable for errors contained herein or for incidental consequential
damages in connection with the furnishing, performance, or use
of this material.
This document contains proprietary information that is protected
by copyright. All rights are reserved. No part of this document
may be photocopied, reproduced, or translated into another
language without the prior written consent of Pacific Crest
Corporation.
The information contained in this document is subject to change
without notice.
CAUTIONS AND WARNINGS
üThroughout this manual this symbol is used to indicate
caution or warning. Please pay particular attention to
these items to assure safe and reliable operation of
your radio modem product.

© Copyright 2005 Pacific Crest Corporation. All rights reserved.
Reproduction, adaptation, or translation of this manual is
prohibited without prior written permission of Pacific Crest
Corporation, except as allowed under the copyright laws.
Eurofast® is a registered trademark of Turck Inc.

TABLE OF CONTENTS
Notice...........................................................................................ii
Cautions and Warnings................................................................ii
Introduction...................................................................................1
Welcome...................................................................................1
Scope........................................................................................1
Note Concerning this Guide .....................................................1
Features and Benefits..................................................................2
Setting Up The EDL II..................................................................4
Overview of EDL II Radio Modem............................................4
EDL II Setup .............................................................................7
Tips and Techniques for Best Performance...............................10
Antenna ..................................................................................10
Power Supplies.......................................................................11
Equipment Care......................................................................11
Error Codes ............................................................................11
FCC Rules and Regulations.......................................................13
Licensing Requirements.........................................................13
Equipment Compliances.........................................................13
Being Part of the RF Community............................................14
Automatic Station Identification..............................................14
Carrier Sense Multiple Access (CSMA) .................................15
Service and Support...................................................................17
Contacting Pacific Crest Corporation .....................................17
Warranty.....................................................................................18
One-Year Limited Warranty....................................................18
Exclusions...............................................................................18
Warranty Limitations...............................................................18
Appendix A -Safety Information ................................................20
Exposure to Radio Frequency Energy ...................................20

Important Notice About Your EDL II.......................................21
Appendix B -Pin-outs and Connectors......................................22
Data/Power Connector ...........................................................22
Serial Port Connector .............................................................22
Power Connector....................................................................23
Antenna ..................................................................................23
Appendix C -Technical Specifications.......................................26
General...................................................................................26
Radio ......................................................................................26
Modem....................................................................................27
Environmental.........................................................................28
Table of Figures
Figure 1 -EDL II Solutions...........................................................4
Figure 2 -EDL II System Setup .................................................10
Figure 3 -Pin-outs and Connectors...........................................25
List of Tables
Table 1 -EDL II Default Settings..................................................9
Table 2 -EDL II Error Codes......................................................12
Table 3 -EDL II Connector Pin Assignments ............................22
Table 4 -DE-9 DTE Pin Assignments........................................23
Table 5 -SAE Power Connector Pin Assignments....................23

INTRODUCTION
Welcome
Thank you for purchasing the Environmental Data Link II™
(EDL II™) for use with your environmental monitoring or control
system. The EDL II is an advanced, high speed, wireless data
link that is designed specifically for high reliability outdoor
applications. Your success in using the EDL II is our primary
goal. We stand behind our product with expert support and
service, and always welcome your comments and questions.
Scope
This guide introduces the EDL II radio modem used in outdoor
monitoring applications. It is written for the first-time user and
gives details concerning system setup, operation, and
maintenance. We urge you to take time to review this short
manual completely prior to operating your system.
Note Concerning this Guide
This guide provides a basic level of information concerning the
operation of the EDL II. For more detailed information, including
Programmer’s Guide, please refer to the EDL II CD-ROM that
accompanies this guide. Please visit our web site
(www.pacificcrest.com) for application information, firmware
updates, and other useful material.

2EDL II User’s Guide
FEATURES AND BENEFITS
Fast Over-the-Air Data Rate –Up to 19,200 bits per second
•Reduced latency provides better responsiveness
•Lower power consumption reduces power requirements
Simple User Interface –Easy to Use
•LEDs to view radio status (TX, RX and Power)
•Configuration software provided for viewing configuration
information and changing radio channels
•Accommodates direct antenna connection. RF cables are
not required!
•Accommodates a variety of antennas
Intelligent Protocols –Forward Error Correction (FEC)
•FEC improves noise immunity and range
•Digipeater operation for extending the range of your radio
network
Environmentally Secure –Designed for outdoor use
•Water-proof and dust proof, stands up to the toughest
weather conditions
•Corrosion resistant and marine certified
•Direct antenna connection for maximum signal integrity
•Safe for use in hazardous locations

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4EDL II User’s Guide
SETTING UP THE EDL II
Overview of EDL II Radio Modem
The EDL II features a unique form factor that facilitates outdoor
mounting or mounting within an instrument enclosure.
Figure 1-EDL II Solutions

Enclosure
The EDL II enclosure is a tough, impact resistant aluminum
enclosure that contains three indicator lights and two connectors.
See Figure 1.
Top End Cap Antenna Mount
The antenna mount provides either an industry standard N-type
female, N-type male, or TNC female-style RF connector that is
compatible with a wide range of antennas.
Bottom End Cap Data Connector
The data connector provides a Turck Eurofast® style data/power
connector that is functional with EDL II interface cables.
Indicator Lights
Three Light Emitting Diodes (LEDs) are viewable on the unit.
The PWR LED indicates the power status and also provides a
low external voltage indicator. The PWR LED is lit when the unit
is powered, and will blink if the external voltage supply is 10 VDC
or less.
The RX LED indicates that the EDL II is receiving an RF carrier
signal. During normal operation, the RX LED will flash whenever
data is received from another unit.
üNote: If the RX LED is on continuously, then a source of
interference may be impacting the EDL II’s ability to
receive data. Try repositioning the antenna away from
the source of interference. You may need to change to
another channel if interference persists.

6EDL II User’s Guide
The TX LED indicates that the EDL II is transmitting. See
Appendix A-Safety Information concerning antenna location
during transmission.
Connectors
The EDL II features a compact, Turck-style, circular data/power
connector. This connector is watertight and mates with the EDL
II data cable.
To connect the data cable to the EDL II, align the key mark on
the plug with the key on the receptacle. Push the plug into the
connector and screw the connector sleeve until tight.
To remove the cable, unscrew the knurled section of the plug
and then pull the plug out of the receptacle. Do not pull on the
cable or directly on the plug unless the locking mechanism is
retracted due to the possibility of damaging the cable.
The EDL II features a variety of antenna connectors:
1) N-type: Male –standard (directional base antennas)
2) N-type: Female –directional base antennas
3) TNC: Female –direct “rubber duck” antenna connection
See Appendix B-Pin-outs and Connectors for additional
information.

EDL II Setup
Configuring the EDL II
Configuration software is provided on the CD-ROM supplied with
each unit. Insert the CD-ROM into a personal computer.
Depending on the configuration of the computer, the CD-ROM
will execute an installation program.
If the program does not automatically start, click on Start then
Run, and in the dialog box enter “D:\SETUP.EXE”. (Substitute
the drive designation for your CD-ROM in place of D: as
required.)
After installing the software, connect the EDL II to your computer
and click the desktop icon called Environmental Data Link. You
will be able to view the EDL II configuration, as well as change
its settings. See the online Help for a description of the various
settings.
We recommend that you use the default configuration, which is
designed for good performance with moderate data rates. Be
sure that the channel selection is the same on all of the units and
only operate on channels that are properly licensed.
Antenna and Antenna Mount
Screw the antenna onto the antenna mount of the EDL II. We
recommend that you inspect the antenna center pin contact to
make sure that it is capable of making a good contact with the
antenna mount. A good antenna connection is critical to system
performance.

8EDL II User’s Guide
Pacific Crest Corporation-supplied antennas incorporate omni-
directional and “yagi”-style directional antennas. We highly
recommend these antennas for best system performance and
reliability. However, other antennas will work as well. Simply
match the antenna’s connector type and frequency.
Mount
The EDL II is designed to mount in the same location as the
antenna. Pole mounting is accomplished by fastening the EDL II
onto the mounting hardware (PCC PN A01766 for horizontal
surfaces, PCC PN A01765 for vertical surfaces). To securely
mount the EDL II, make sure that the mounting brackets are
placed at the center of the EDL II radio.
ü
Tip: Directly mounting an antenna to the EDL II
lowers costs, as no RF cable is required.
Connecting the EDL II
The EDL II is connected to the user equipment via a data/power
interface cable (PCC PN A01764 or similar). The cable has a
Turck Eurofast® plug for IP 67 connection to the EDL II and the
option of either a pig-tail for custom installations, or an over-
molded “Y” joint with industry standard DE-9 connector for RS-
232 devices and SAE connector for power.
üWarning: Keep all data lines and DC power
lines separate from AC power lines at all
times.

Configuring the EDL II
The serial port settings of the equipment attached to the EDL II
must match the settings within the EDL II. You can change the
EDL II settings using the supplied software. We recommend
using the default configuration for best overall performance.
Table 1-EDL II Default Settings
Setting Factory Defaults
Channel 0
Serial Port Baud Rate 38.4 k Baud
Serial Port Parity None
Mode Transparent with EOT timeout
EOT value 5
Retries 3
Link rate* 9600 bps (raw data)
Modulation GMSK
FEC Enabled
Data Scrambling Enabled
Digisquelch High
Break to command Off
TX ACK timeout 0.10
CSMA Enabled
Digidelay 0.0
Repeater Off
Address (local) 0
Address (destination) 255
*Link rate of 9600 GMSK gives best range and reliability.

10 EDL II User’s Guide
TIPS AND TECHNIQUES FOR BEST PERFORMANCE
Antenna
Antenna placement is critical for good performance. Range and
coverage is directly related to the height of the transmitting and
receiving antennas. Where possible, select a location that takes
advantage of terrain to get the antenna as high as possible.
Radio Modem
Yagi Mounting Bracket
Data/Power Cable
Antenna Connector
Yagi Antenna
Tripod/Tower
Radio Mounting Bracket
Figure 2-EDL II System Setup
üTip: High quality antennas are important to
maximizing the range and reliability of the radio
link.

Power Supplies
For battery-powered systems, maintain batteries in a fully-
charged state. If the units are powered with a regulated power
source, then make sure that the current sourcing capabilities
meet the radio requirements. (See the Appendix C-Technical
Specifications for power requirements.)
Equipment Care
Routine equipment care will prolong the life and reliability of your
EDL II. Radio communication equipment is susceptible to
damage from shock or environmental extremes.
Inspect cables, connectors, and antennas periodically; replace if
wear is present. Never open the EDL II unit, as there are no
user-serviceable parts inside. Opening the EDL II enclosure
invalidates the warranty provided.
Error Codes
The EDL II performs a variety of power-up and run-time tests to
assure optimal operation. Tests include environmental as well as
electrical measurements designed to avoid damage to the unit
while maintaining adequate operation.
In the event of an error condition, the RX and TX indicator lights
blink in unison to provide error status. The indicators will blink a
number of times, separated by a pause.

12 EDL II User’s Guide
Table 2-EDL II Error Codes
Blinks Description
1External voltage too high
10 Current consumption too high for 2-Watt operation
11 Checksum error
12 RAM error
13 EEPROM error
14 FLASH error
15-16 Synthesizer failed to locked
What to do
1 blink -Check battery or power supply voltage level and reduce
to below 16 VDC.
10 blinks -Check antenna. Power cycle the unit and if the
condition continues, then contact customer support.
11-16 blinks –Power cycle the unit and connect to EDL
configuration software and if the condition repeats, then contact
Pacific Crest Corporation’s customer service at [phone]
(United States and Canada) or [phone] (International).

FCC RULES AND REGULATIONS
Licensing Requirements
It is the responsibility of the EDL II owner to comply with
applicable rules and regulations concerning the operation of a
radio transmitter. In the United States, the Federal
Communications Commission (FCC) regulates the licensing of
this equipment.
Application for a license is made by submitting FCC Form 600
along with evidence of frequency coordination (if required) and
applicable fees. Similar licensing requirements exist worldwide.
Penalties for broadcasting without a license can be severe and
may include the confiscation of your equipment.
üWarning: Always obey local licensing requirements and
restrictions.
Equipment Compliances
EDL II products have been tested and type-approved for
operation in the U.S., Canada, China, and Europe. The EDL II
products have also been tested and found compliant for type
certification and approval in many other countries worldwide.
For more information concerning our worldwide compliances,
contact our customer service department.
üThis device complies with Part 15 of the FCC rules.
Operation is subject to the condition that this device
does not cause harmful interference.

14 EDL II User’s Guide
Being Part of the RF Community
Operation of a licensed radio product makes you a member of
the RF community. Be aware that virtually all licensed
frequencies are provided on a shared basis with other users.
Frequencies are licensed with certain restrictions and limitations.
For complete information, refer to Part 90, Title 47, of the U.S.
Code of Federal Regulations, or other documents depending on
the area of operation.
Many frequencies are shared among data transmissions and
voice users. In some circumstances, voice transmissions are
given priority to voice users. You are responsible for complying
with the requirements for shared channel use.
Some operations are itinerant in that the system is moved on a
frequent basis. For these types of systems, itinerant licenses are
available. For fixed system installations, you should not use
frequencies set aside for itinerant operations, but should
coordinate a frequency based on the fixed area operation.
üWarning: Regulations differ from country to country, so
please be aware of the local regulations prior to using
the EDL II equipment.
Automatic Station Identification
For operation in the United States, the FCC may require that
radio transmitters used for environmental applications
periodically broadcast a station identifier. The station identifier is
the call sign assigned to you on the station license.