Edgetech 4125, 4125 Series User Manual

EdgeTech

4 Little Brook Road

West Wareham, MA 02576

Tel: [phone]

Fax: [phone]

www.EdgeTech.com

4125 SIDE SCAN SONAR SYSTEM

U S E R H A R D W A R E M A N U A L

0004823_REV_F October 2016

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

The information, figures, and specifications in this manual are proprietary and are issued in strict
confidence on condition that they not be copied, reprinted, or disclosed to a third party, either wholly or
in part, without the prior, written consent of EdgeTech. Any reproduction of EdgeTech supplied software
or file sharing is strictly prohibited.

EdgeTech © 2016. All rights reserved.

Microsoft® and Windows® are registered trademarks of Microsoft Corporation.

Kevlar® is a registered trademark of the DuPont Company.

Intel® and Pentium® are registered trademarks of Intel Corporation.

Novagard G624® is a trademark of Novagard Solutions, Inc.

Storm Case™ is a trademark of Pelican, Inc.

CentrinoTM is a trademark of Intel Corporation.

Kellems® is a registered trademark of Hubbell Incorporated.

iii

ATTENTION – READ THIS FIRST!

All personnel involved with the installation, operation, or maintenance of the equipment described in this
manual should read and understand the warnings and cautions provided below.

CAUTION! This equipment contains devices that are extremely sensitive

to static electricity. Therefore, extreme care should be taken when
handling them. Normal handling precautions involve the use of anti-static
protection materials and grounding straps for personnel.

WARNING! High Voltage may be present in all parts of the system.

Therefore, use caution when the electronics are removed from their
containers for servicing.

CAUTION! Operation with improper line voltage may cause serious

damage to the equipment. Always ensure that the proper line voltage is
used.

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

HARDWARE VARIATIONS AND COMPATIBILITY

The 4125 Side Scan Sonar System contains both standard and proprietary hardware. At times, EdgeTech
may change the standard components due to their availability or performance improvements. Although
the component manufacturers—along with their models and styles—may change from unit to unit,
replacement parts will generally be interchangeable.

EdgeTech will make every effort to see that replacement components are interchangeable and use the
same software drivers (if applicable). At times, however, direct replacements may not exist. When this
happens, EdgeTech will provide the necessary drivers with the replacement part, if applicable.

EdgeTech may also change certain hardware per customer requirements. Therefore, portions of this
manual, such as parts lists and test features, are subject to change. These sections should be used for
reference only. When changes are made that affect system operation, they will be explicitly noted. Also,

some options and features may not be active in the customer’s unit at time of delivery. Upgrades will be

made available when these features are implemented.

Contact EDGETECH CUSTOMER SERVICE with any questions relating to compatibility.

v

ABOUT THIS DOCUMENT

We, the employees at EdgeTech, would like to thank you for purchasing 4125 Side Scan Sonar System. At
EdgeTech, it is our policy to provide high-quality, cost-effective products and support services that meet
or exceed your requirements. We also strive to deliver them on-time, and to continuously look for ways
to improve them. We take pride in the products we manufacture, and want you to be entirely satisfied
with your equipment.

Purpose of this Manual

The purpose of this manual is to provide the user with information on the setup and use of EdgeTech’s

4125. Although this manual encompasses the latest operational features of the 4125, some features may
be periodically upgraded. Therefore, the information in this manual is subject to change and should be
used for reference only.

Liability

EdgeTech has made every effort to document the 4125 in this manual accurately and completely.
However, EdgeTech assumes no liability for errors or for any damages that result from the use of this
manual or the equipment it documents. EdgeTech reserves the right to upgrade features of this
equipment, and to make changes to this manual, without notice at any time.

Warnings, Cautions, and Notes

Where applicable, warnings, cautions, and notes are provided in this manual as follows:

WARNING! Identifies a potential hazard that could cause injury or death.

CAUTION! Identifies a potential hazard that could damage equipment or

data.

NOTE: Recommendations or general information that is particular to the

material being presented.

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

Revision History

REVISION

DESCRIPTION

DATE

APPROVAL

B

Update specifications

01/02/2011

RM

C

Updated formatting/specs

01/21/2014

RM

D

Updated specifications

05/03/2016

RM

E

Updated for new tail cone
and vertical scan ability

07/07/2016

TS

F

Updated specifications and
drawings

10/28/2016

TS

vii

WARRANTY STATEMENT

All equipment manufactured by EdgeTech is warranted against defective components and workmanship
for a period of one year after shipment. Warranty repair will be done by EdgeTech free of charge.

Shipping costs are to be borne by the customer. Malfunction due to improper use is not covered in the
warranty, and EdgeTech disclaims any liability for consequential damage resulting from defects in the
performance of the equipment. No product is warranted as being fit for a particular purpose, and there is
no warranty of merchantability. This warranty applies only if:

i. The items are used solely under the operating conditions and in the manner recommended in

Seller's instruction manual, specifications, or other literature.

ii. The items have not been misused or abused in any manner, nor have repairs been attempted

thereon without the approval of EdgeTech Customer Service.

iii. Written notice of the failure within the warranty period is forwarded to Seller and the directions

received for properly identifying items returned under warranty are followed.

iv. The return notice authorizes Seller to examine and disassemble returned products to the extent

Seller deems necessary to ascertain the cause for failure.

The warranties expressed herein are exclusive. There are no other warranties, either expressed or implied,
beyond those set forth herein, and Seller does not assume any other obligation or liability in connection
with the sale or use of said products. Any product or service repaired under this warranty shall be
warranted for the remaining portion of the original warranty period only.

Equipment not manufactured by EdgeTech is supported only to the extent of the original manufacturer's
warranties.

CAUTION! If your product is a portable topside, never attempt to ship it

in its Storm CaseTM alone. Shipping portable topsides without an exterior
shipping crate will void the warranty.

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

SOFTWARE SERVICE OVERVIEW

EdgeTech provides software services free of charge. This software agreement does not address customer­specified modifications or enhancements. These services may be ordered separately. Furthermore,
EdgeTech software upgrades are meant for the sole use of EdgeTech customers. Any reproduction of
EdgeTech-supplied software or file sharing is strictly prohibited.

Software Updates and Enhancements

EdgeTech customers can download new software releases with all modifications and enhancements from
the EdgeTech ftp site. Major software issues, should they occur, will be reported directly to the customer.
New software releases consist of the following:

 Software enhancements that are not on the price list
 Software fixes and changes
 Product integration
 Documentation updates to on-line help
 Tests for compatibility with other modules

Software patches consist of software that has undergone the following:

 Minor software enhancements
 Software fixes and changes
 Software Telephone, Facsimile, and E-mail Support

EdgeTech customers are entitled to contact EDGETECH CUSTOMER SERVICE by telephone, facsimile, or e-mail
to report a difficulty, to discuss a problem or to receive advice on the best way to perform a task. When
contacted, EdgeTech Customer Service will do the following:

 Respond within 24 hours
 Immediately attend to serious problems affecting operations
 Attempt to find an immediate work-around

ix

RETURNED MATERIAL AUTHORIZATION

Prior to returning any equipment to EdgeTech, a Returned Material Authorization (RMA) number must be
obtained. The RMA will help us identify your equipment when it arrives at our receiving dock and track
the equipment while it is at our facility. The material should be shipped to the address provided in the

EDGETECH CUSTOMER SERVICE section. Please refer to the RMA number on all documents and

correspondences as well.

All returned materials must be shipped prepaid. Freight collect shipments will not be accepted. EdgeTech
will pay freight charges on materials going back to the customer after they have been evaluated and/or
repaired.

CAUTION! If your product is a portable topside, never attempt to ship it

in its Storm CaseTM alone. Although rugged, these cases are not intended
to be used as shipping containers, and the delicate internal components
could be damaged if used in this manner.

The following steps apply only to material being returned from outside the Continental United States.
Follow them carefully to prevent delays and additional costs.

1. All shipments must be accompanied by three copies of your proforma invoice, showing the value

of the material and the reason for its return. If the reason is for repair, it must be clearly stated in
order to move through customs quickly and without duties being charged. Whenever possible,
please send copies of original export shipping documents with the consignment.

2. If the value of the equipment is over $1000, the following Shipper's oath must be sent with the

invoice. This oath can be typed on the invoice, or on a separate letterhead:

"I, ______________________________, declare that the articles herein specified are the
growth, produce, or manufacture of the United States; that they were exported from the
United States from the port of _____________________, on or about _______________;
that they are returned without having been advanced in value or improved in condition
by any process of manufacture or any other means; and that no drawback, or allowance
has been paid or admitted hereof."

Signed ______________________________

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

3. If there is more than one item per consignment, a packing list must accompany the shipment. It

is acceptable to combine the proforma invoice and packing list if the contents of each carton are
clearly numbered and identified on the invoice.

4. Small items can be shipped prepaid directly to EdgeTech by FedEx, DHL, UPS, Airborne, etc.

5. If the equipment is the property of EdgeTech (formerly EG&G Marine Instruments Division),

please insure for full value.

6. Fax one invoice, packing list, and a copy of the airway bill to EdgeTech upon shipment.

xi

CUSTOMER SERVICE

Customer service personnel at EdgeTech are always eager to hear from users of our products. Your
feedback is welcome, and is a valuable source of information which we use to continually improve these
products. Therefore, we encourage you to contact EdgeTech Customer Service to offer any suggestions
or to request technical support:

NOTE: Please have your system Model and Serial Number available when

contacting Customer Service.

E-mail: [e-mail]

Mail: 4 Little Brook Road

West Wareham, MA 02576

Telephone: [phone]

Facsimile: [phone]

24-Hour Emergency
Technical Support Line: [phone]

For more information please go to www.EdgeTech.com.

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

COMPANY BACKGROUND

EdgeTech (formerly EG&G Marine Instruments) traces its history in underwater data acquisition and
processing back to 1966. EdgeTech has designed, developed, and manufactured products, instruments,
and systems—for the acquisition of underwater data, including marine, estuarine, and coastal
applications—for over 45 years.

The company has responded to the needs of the scientific, Naval, and offshore communities by providing
equipment—such as sub-bottom profilers, side scan sonar, acoustic releases, USBL positioning systems,
and bathymetric systems—that have become standards in the industry.

EdgeTech has also consistently anticipated and responded to future needs through an active research and
development program. Current efforts are focused on the application of cutting-edge CHIRP and acoustic
technology.

xiii

TABLE OF CONTENTS

ATTENTION – READ THIS FIRST! ......................................................................................................... iii

HARDWARE VARIATIONS AND COMPATIBILITY .................................................................................. iv

ABOUT THIS DOCUMENT .................................................................................................................... v

Purpose of this Manual ............................................................................................................................. v

Liability ...................................................................................................................................................... v

Warnings, Cautions, and Notes ................................................................................................................. v

Revision History ....................................................................................................................................... vi

WARRANTY STATEMENT .................................................................................................................. vii

SOFTWARE SERVICE OVERVIEW ....................................................................................................... viii

Software Updates and Enhancements................................................................................................... viii

RETURNED MATERIAL AUTHORIZATION ............................................................................................ ix

CUSTOMER SERVICE .......................................................................................................................... xi

COMPANY BACKGROUND ................................................................................................................ xii

TABLE OF CONTENTS ....................................................................................................................... xiii

LIST OF FIGURES ............................................................................................................................ xviii

LIST OF TABLES ............................................................................................................................... xxi

1.0 OVERVIEW .............................................................................................................................1-1

1.1 4125 Series Applications ............................................................................................................ 1-1

1.2 Main System Components ......................................................................................................... 1-1

1.3 4125-P Portable Topside Processor ........................................................................................... 1-1

1.4 4125 Rack Mount Topside ......................................................................................................... 1-3

1.5 Towfish ...................................................................................................................................... 1-3

1.6 Tow Cable .................................................................................................................................. 1-4

1.7 Optional Equipment .................................................................................................................. 1-5

1.7.1 Depressor Wing .................................................................................................................... 1-5

1.7.2 Keel Weight ........................................................................................................................... 1-6

1.7.3 HullScan Kit ........................................................................................................................... 1-6

2.0 SPECIFICATIONS .....................................................................................................................2-1

2.1 4125 Topside Processor Specs ................................................................................................... 2-1

2.1.1 Technical Descriptions of Internal Components ................................................................... 2-2

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

2.2 4125 Towfish ........................................................................................................................... 2-11

2.3 Cables ....................................................................................................................................... 2-15

3.0 SETUP AND ACTIVATION ........................................................................................................3-1

3.1 Unpacking and Inspection ......................................................................................................... 3-1

3.2 Power Requirements ................................................................................................................. 3-2

3.2.1 Use of an Uninterrupted Power Supply ................................................................................ 3-2

3.2.2 Changing a Non-US Power Plug ............................................................................................ 3-2

3.3 Navigation Interface .................................................................................................................. 3-2

3.4 Placement of the Topside Processor ......................................................................................... 3-3

3.4.1 4125-P Portable Topside Processor Placement .................................................................... 3-3

3.4.2 4125 Rack Mount Topside Processor ................................................................................... 3-3

3.5 Topside Controls and Indicators ................................................................................................ 3-3

3.5.1 4125-P Portable Topside Processor Controls and Indicators ............................................... 3-3

3.5.2 4125 Rack Mount Topside Controls and Indicators .............................................................. 3-5

3.6 Topside Processor Connections ................................................................................................. 3-7

3.6.1 4125-P Portable Topside Processor Connections ................................................................. 3-7

3.6.2 4125 Rack Mount Topside Processor Connections .............................................................. 3-7

3.7 TCP/IP Address Settings ............................................................................................................. 3-7

3.8 Assembling the 4125 Towfish .................................................................................................... 3-8

3.9 Installing Optional Equipment ................................................................................................... 3-9

3.9.1 Installing the Hull Scan Kit .................................................................................................... 3-9

3.9.2 Installing the Depressor Wing ............................................................................................. 3-11

3.10 Connecting the System Components ...................................................................................... 3-14

3.10.1 Connecting and Attaching the Tow Cable to the Towfish .................................................. 3-14

3.10.2 Connecting the Topside ...................................................................................................... 3-16

3.10.2.1 Connecting the 4125-P Portable Topside Processor .................................................. 3-16

3.10.2.2 Connecting the 4125-RM Rack Mount Topside .......................................................... 3-16

3.11 System Activation and Test ..................................................................................................... 3-17

3.11.1 Preparing a Wired ETHERNET LAN Connection .................................................................. 3-17

3.11.2 Preparing a Wireless ETHERNET LAN Connection (4125-P Only) ....................................... 3-18

3.11.3 Activating the 4125 Series System ...................................................................................... 3-18

3.12 Performing Pre-deployment Checks ........................................................................................ 3-19

xv

3.13 Towfish Deployment ................................................................................................................ 3-21

3.14 Towfish Recovery ..................................................................................................................... 3-23

4.0 MAINTENANCE ......................................................................................................................4-1

4.1 Cleaning the 4125 System ......................................................................................................... 4-1

4.1.1 Inspecting and Cleaning the Connections ............................................................................ 4-1

4.2 Re-arming the Towfish............................................................................................................... 4-2

5.0 TROUBLESHOOTING ...............................................................................................................5-1

5.1 Restoring the Operating System to the Hard Drive ................................................................... 5-1

5.2 Disassembling and Reassembling the Towfish .......................................................................... 5-1

5.2.1 Disassembly .......................................................................................................................... 5-1

5.2.2 Reassembly ........................................................................................................................... 5-5

5.3 Calibrating the Compass ............................................................................................................ 5-5

5.3.1 Changing the Angle of Declination ..................................................................................... 5-14

5.4 General Troubleshooting ......................................................................................................... 5-18

5.5 4125-P Portable Topside Processor Troubleshooting ............................................................. 5-19

5.6 4125 Towfish Troubleshooting ................................................................................................ 5-19

5.7 Tow Cable Inspection............................................................................................................... 5-21

5.7.1 Locating a Shorted Conductor ............................................................................................ 5-22

5.7.2 Locating an Open Conductor .............................................................................................. 5-22

5.7.3 Locating a Resistance Breakdown ...................................................................................... 5-23

5.7.4 Damaged Tow Cable Connector ......................................................................................... 5-23

5.8 Part Numbers for Major Topside Components ....................................................................... 5-23

5.9 Part Numbers for Major Towfish Components ....................................................................... 5-24

A.0 SYSTEM RESTORE ................................................................................................................ A-1

B.0 PRINTERS ............................................................................................................................ B-1

C.0 TOWING CHARACTERISTICS ................................................................................................. C-1

C.1 4125 Towfish Cable Layback Plots ............................................................................................. C-1

C.1.1 Config. 2: 4125, 23080 Cable - 100m Long ........................................................................... C-6

C.1.2 Config. 4: 4125, 23080 Cable - 300m Long ........................................................................... C-7

C.1.3 Config. 6: 4125 + 15 lb. Keel Weight, 23080 Cable - 100m Long .......................................... C-8

C.1.4 Config. 8: 4125 + 15 lb. Keel Weight, 23080 Cable - 300m Long .......................................... C-9

C.1.5 Config. 10: 4125 + Depressor Wing, 23080 Cable - 100m Long ......................................... C-10

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

C.1.6 Config. 12: 4125 + Depressor Wing, 23080 Cable - 300m Long ......................................... C-11

C.1.7 Config. 14: 4125 + 15 lb. Keel Wt. + Depressor Wing, 23080 Cable – 100m ...................... C-12

C.1.8 Config. 16: 4125 + 15 lb. Keel Wt. + Depressor Wing, 23080 Cable – 300m ...................... C-13

C.1.9 Config. 18: 4125, A304874 Cable - 100m Long ................................................................... C-14

C.1.10 Config. 20: 4125, A304874 Cable - 300m* Long ................................................................. C-15

C.1.11 Config. 22: 4125 + 15 lb. Keel Weight, A304874 Cable - 100m Long ................................. C-16

C.1.12 Config. 24: 4125 + 15 lb. Keel Weight, A304874 Cable - 300m* Long ............................... C-17

C.1.13 Config. 26: 4125 + Depressor Wing, A304874 Cable - 100m Long ..................................... C-18

C.1.14 Config. 28: 4125 + Depressor Wing, A304874 Cable - 300m* Long ................................... C-19

C.1.15 Config. 30: 4125 + 15 lb. Keel Wt. + Dep. Wing, A304874 Cable - 100m ........................... C-20

C.1.16 Config. 32: 4125 + 15 lb. Keel Weight + Dep. Wing, A304874 Cable - 300m* ................... C-21

C.1.17 Config. 34: 4125, A320327 Cable - 100m Long ................................................................... C-22

C.1.18 Config. 37: 4125, A320327 Cable - 400m Long ................................................................... C-23

C.1.19 Config. 39: 4125 + 15 lb. Keel Weight, A320327 Cable - 100m Long ................................. C-24

C.1.20 Config. 42: 4125 + 15 lb. Keel Weight, A320327 Cable - 400m Long ................................. C-25

C.1.21 Config. 44: 4125 + Depressor Wing, A320327 Cable - 100m Long ..................................... C-26

C.1.22 Config. 47: 4125 + Depressor Wing, A320327 Cable - 400m Long ..................................... C-27

C.1.23 Config. 49: 4125 + 15 lb. Keel Wt. + Dep. Wing, A320327 Cable – 100m ........................... C-28

C.1.24 Config. 52: 4125 + 15 lb. Keel Wt. + Dep. Wing, A320327 Cable - 400m ........................... C-29

C.1.25 Config. 54: 4125, A302799 Cable - 100m Long ................................................................... C-30

C.1.26 Config. 57: 4125, A302799 Cable - 400m Long ................................................................... C-31

C.1.27 Config. 59: 4125, A302799 Cable - 600m Long ................................................................... C-32

C.1.28 Config. 61: 4125 + 15 lb. Keel Weight, A302799 Cable - 100m Long ................................. C-33

C.1.29 Config. 64: 4125 + 15 lb. Keel Weight, A302799 Cable - 400m Long ................................. C-34

C.1.30 Config. 66: 4125 + 15 lb. Keel Weight, A302799 Cable - 600m Long ................................. C-35

C.1.31 Config. 68: 4125 + Depressor Wing, A302799 Cable - 100m Long ..................................... C-36

C.1.32 Config. 71: 4125 + Depressor Wing, A302799 Cable - 400m Long ..................................... C-37

C.1.33 Config. 73: 4125 + Depressor Wing, A302799 Cable - 600m Long ..................................... C-38

C.1.34 Config. 75: 4125 + 15 lb. Keel Wt. + Dep. Wing, A302799 Cable – 100m ........................... C-39

C.1.35 Config. 78: 4125 + 15 lb. Keel Wt. + Dep. Wing, A302799 Cable - 400m ........................... C-40

C.1.36 Config. 80: 4125 + 15 lb. Keel Weight + Dep. Wing, A302799 Cable - 600m ..................... C-41

xvii

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

LIST OF FIGURES

Figure 1-1: 4125 Laptop and Portable Topside Processor ......................................................................... 1-2

Figure 1-2: 4125 Towfish ............................................................................................................................ 1-4

Figure 1-3: 4125 Tow Cable ....................................................................................................................... 1-5

Figure 1-4: Optional Depressor Wing ........................................................................................................ 1-6

Figure 1-5: Optional Inverted HullScan Bracket ......................................................................................... 1-6

Figure 2-1: 4125 Series Dual Frequency Side Scan Sonar System Overall Block Diagram (Wireless for

Portable Topside Only) .............................................................................................................................. 2-4

Figure 2-2: 4125-P Portable Case ICD Drawing .......................................................................................... 2-5

Figure 2-3: 4125-P Portable Topside Processor Wiring Diagram ............................................................... 2-6

Figure 2-4: 4125 Portable Topside Processor Chassis................................................................................ 2-7

Figure 2-5: 4125 Rack Mount Topside Processor Wiring Diagram ............................................................ 2-8

Figure 2-6: 4125 Rack Mount Processor Chassis ....................................................................................... 2-9

Figure 2-7: 0010482, DOC Drawing ICD SS Array 4125 ............................................................................ 2-13

Figure 2-8: Depressor Wing ICD Drawing................................................................................................. 2-14

Figure 2-9: Kevlar Reinforced Tow Cable, Telemetry .............................................................................. 2-16

Figure 2-10: AC Power Cable.................................................................................................................... 2-17

Figure 2-11: DC Power Cable for Portable Topside.................................................................................. 2-18

Figure 2-12: ETHERNET Cable .................................................................................................................. 2-19

Figure 3-1: 4125-P Portable Topside Processor Side Panel ....................................................................... 3-4

Figure 3-2: 4125 Rack Mount Front Panel—Controls and Indicators ........................................................ 3-6

Figure 3-3: 4125 Rack Mount Back Panel—Controls and Connections ..................................................... 3-6

Figure 3-4: Tail Assembly Drawing ............................................................................................................. 3-8

Figure 3-5: Horizontal (Inverted) Hull Scan Bracket Attached ................................................................... 3-9

Figure 3-6: Vertical HullScan Bracket Attached ....................................................................................... 3-10

Figure 3-7: Connected Towfish (Horizontal Hull Scan Shown) ................................................................ 3-11

Figure 3-8: Depressor Wing bracket shown attached to tow fish bracket .............................................. 3-12

Figure 3-9: Depressor Wing Recovery Cable Attached to Towfish Rear Handle. .................................... 3-12

Figure 3-10: Tow cable shown Routed through Depressor Wing Top Hole. ........................................... 3-13

Figure 3-11: Tow cable and Tow Fish Pigtail Connectors......................................................................... 3-13

xix

Figure 3-12: Cable grip attached to Depressor Wing Mounting Point. ................................................... 3-14

Figure 3-13: Towfish with Tow Cable Connected and Attached .............................................................. 3-15

Figure 3-14: DISCOVER 4125 Towfish Control Tab .................................................................................. 3-19

Figure 3-15: Performing a Rub Test ......................................................................................................... 3-20

Figure 3-16: Rub Test Screen Shot ........................................................................................................... 3-20

Figure 3-17: 4125 Towfish being Deployed ............................................................................................. 3-22

Figure 3-18: Bottom Track Tab ................................................................................................................ 3-23

Figure 5-1: Towfish Parts of Note .............................................................................................................. 5-2

Figure 5-2: Electronics Bottle and Transducer Array Sections Separated ................................................. 5-2

Figure 5-3: Cables Disconnected from the Electronics Bottle ................................................................... 5-3

Figure 5-4: Removing the Phillips Head Screws from the Electronics Bottle............................................. 5-4

Figure 5-5: Removing the Electronics Chassis from the Electronics Bottle ............................................... 5-5

Figure 5-6: Remote Desktop Icon .............................................................................................................. 5-6

Figure 5-7: Remote Desktop Splash Screen ............................................................................................... 5-6

Figure 5-8: Remote Desktop Warning Screen ............................................................................................ 5-7

Figure 5-9: Closing Sonar.exe ..................................................................................................................... 5-8

Figure 5-10: Tera Term Icon ....................................................................................................................... 5-8

Figure 5-11: Tera Term Splash Screen ....................................................................................................... 5-9

Figure 5-12. Terra Term Port Set-up ........................................................................................................ 5-10

Figure 5-13. Motion Sensor Serial Output ............................................................................................... 5-10

Figure 5-14. Motion Sensor Calibration Result ........................................................................................ 5-11

Figure 5-15. Motion Sensor Serial Output .............................................................................................. 5-12

Figure 5-16: Tilt 0 degrees ....................................................................................................................... 5-12

Figure 5-17: Tilt -90 degrees .................................................................................................................... 5-13

Figure 5-18: Tilt +90 degrees ................................................................................................................... 5-13

Figure 5-19: Compass Calibration Table .................................................................................................. 5-14

Figure 5-20 ............................................................................................................................................... 5-15

Figure 5-21 ............................................................................................................................................... 5-15

Figure 5-22: Magnetic Declination Estimated Value Screen .................................................................... 5-16

Figure 5-23: Angle of Declination Calculated ........................................................................................... 5-17

Figure 5-24 ............................................................................................................................................... 5-18

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4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

xxi

LIST OF TABLES

Table 2-1: 4125-P Portable Topside Processor .......................................................................................... 2-2

Table 2-2: Towfish Specifications ............................................................................................................. 2-12

Table 3-1: AC Power Cord Wiring .............................................................................................................. 3-2

Table 3-2: ETHERNET Devices TCP/IP Addresses ....................................................................................... 3-8

Table 5-1: Topside Processor System Troubleshooting Guide ................................................................ 5-19

Table 5-2: 4125 Towfish Troubleshooting Guide ..................................................................................... 5-21

Table 5-3: Part Numbers for Major 4125-P Topside Processor Components .......................................... 5-24

Table 5-4: Part Numbers for Major 4125 Towfish Components ................................................................ 5-2

1-1

1.0 OVERVIEW

The EdgeTech 4125 Series Dual-frequency Side Scan Sonar System is a frequency-modulated (FM), dual­frequency, side scan sonar that uses EdgeTech’s proprietary Full Spectrum “chirp” technology to generate
high-resolution, side scan imagery at longer ranges than conventional continuous-wave (CW) systems.
The system is designed primarily for search and recovery operations, along with surveys in shallow water.

The 4125 Series is available in two, dual simultaneous frequency configurations depending on the
application: 400/900 kHz and 600/1600 kHz. 400/900 is the best choice for general survey work and the
600/1600 for the highest resolution such as search and recovery applications, etc.

In both configurations, the frequencies are transmitted as linearly-swept, wide-band, high energy acoustic
pulses, and the received echoes are processed into high signal-to-noise (SNR) images that can be directly
displayed as shades of gray or color on a computer monitor. The SNR images can also be printed on a
continuous feed thermal printer, or stored in real time onto a large capacity hard drive and archived onto
a DVD.

1.1 4125 Series Applications

Applications for the 4125 Series Dual-frequency Side Scan Sonar System are many, including:

 Hydrographic surveys
 Geological surveys
 Search and recovery
 Channel conditioning/clearance surveys
 Bridge, pier, and harbor wall inspections
 Hull inspections
 Port security
 Archaeological surveys

1.2 Main System Components

The 4125 Series Dual-frequency Side Scan Sonar System is composed a 4125-P Portable Topside Processor
or 4125 Rack Mount Topside, a 4125 Towfish (commonly called a Towfish), and a tow cable.

1.3 4125-P Portable Topside Processor

The 4125-P Portable Topside Processor is shown in FIGURE 1-1. It provides power and downlink telemetry
to the towfish for sonar control and receives uplink side scan data, sensor data, and status information
from the towfish for processing, storage, and display.

1-2 1.0 OVERVIEW

4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

The topside unit includes a laptop computer with Windows 7 and the EdgeTech DISCOVER 4125 Side Scan
Sonar software preinstalled. DISCOVER 4125 provides control, storage, and display of the sonar data. The
data can be stored in XTF and JSF formats.

The 4125-P Portable Topside Processor interfaces with the towfish uses very high bit rate digital subscriber
line (VDSL) modems. The topside unit also interfaces with a global positioning system (GPS) over a USB to
serial or RS-232 serial interface.

The topside processor integrates towfish and DC power supplies, an ETHERNET switch, a wireless router,
and a VDSL modem, all housed within a single, compact, rugged, water-tight (when closed) Pelican Storm
Case. It runs on either AC or DC power, and interfaces with the laptop computer over a wired or wireless
10/100BaseT ETHERNET connection. The computer can be stored inside the enclosure when not in use.

Figure 1-1: 4125 Laptop and Portable Topside Processor

CAUTION! Never attempt to use the portable topside’s Storm CaseTM as

a shipping container. Doing so will void warranties and may result in
system damage.

LAPTOP COMPUTER

with DISCOVER 4125

Survey Software

PORTABLE TOPSIDE PROCESSOR

1-3

1.4 4125 Rack Mount Topside

The 4125 system can also be ordered with a 19” 2U rack mount option instead of the portable topside.
This version of the processor is intended for permanent mounting in a sheltered section of the survey
vessel.

This system configuration includes towfish and DC power supplies, ADSL modem, and an Ethernet switch,
all within a single 19-inch 2U rack. The rack mount option interfaces with a user supplied computer over
a 10/100BaseT Ethernet connection. The Ethernet cord is included.

1.5 Towfish

The 4125 Towfish is available with a choice of 400/900 kHz or 600/1600 kHz operating frequencies. It
contains the sonar transducer arrays and the electronics required to transmit and receive the sonar
signals; to receive the downlink commands from the topside processor; and to provide the uplink side
scan data, sensor data, and status information to the topside processor.

The electronics are contained inside a single, lightweight stainless steel, 200-meter depth-rated housing,
comprising the aft section of the towfish. The forward section is flooded and includes both the port and
starboard transducer arrays. A single O-ring sealed end cap is attached to each end of the housing to seal
it, and the forward end cap contains bulkhead connectors for connecting to the transducer arrays. An
adapter cable for power and communication also connects to this end cap.

The cable snakes through a hole in the transducer array section and includes an inline connector for
connecting to the tow cable. The towfish interfaces with the topside over a 10BaseT connection that uses
VDSL modems in both the towfish and the topside processor.

The towfish is also equipped a stainless steel nose for hydrodynamic balance and two convenient carrying
handles. A towing arm is rigidly mounted to a tow point on the top of the towfish housing adjacent to the
tow cable connector. The tow cable attaches to a shackle on the towing arm.

Additional mounting holes are provided on the tow point should it be necessary to reposition the towing
arm forward or aft to adjust the balance of the towfish. The towing arm also includes a safety release
mechanism, which causes a shear pin to release the tow point should the towfish hit an obstruction or
become snagged. If this happens, the towfish will rotate nose down, and a safety cable, which is attached
from the tow point to the rear of the towfish, will pull the towfish over the obstruction or through the
snag, stern first.

1-4 1.0 OVERVIEW

4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

Figure 1-2: 4125 Towfish

1.6 Tow Cable

The 4125 Series Dual-frequency Side Scan Sonar System includes a 50-meter tow cable, terminated at
both ends. The tow cable is used both to connect to the towfish, and to tow it behind the survey vessel.
Tow cable is a RG58 coax cable which includes a single conductor and shield.

Up to 600 meters of coax cable can be used. Contact EdgeTech Customer Service for available cable
lengths other than the supplied 50-meter cable. A cable grip is also included for attaching the tow cable
to a shackle on the towing arm of the towfish.

Safety cable

Waterproof
Splice

Tow Cable Connector
& Dummy Plug

Shackle

Shear pin

Carrying
handles (2)

Tail Cone

Tow Arm

1-5

Figure 1-3: 4125 Tow Cable

1.7 Optional Equipment

Optional equipment that can be installed and used with a 4125 Series Dual-frequency Side Scan Sonar
System includes:

 Keel Weight Kit (Part Number 0008464)
 Depressor Wing Kit (Part Number 0007860)
 HullScan Kit (Part Number 0008477)
 Marine Magnetics Sea Spy II and Explorer Magnetometer Interface (Part Number 0016344)

1.7.1 Depressor Wing

The Depressor Wing Kit provides a depressor wing (shown in FIGURE 1-4) that can be attached to the
towfish, allowing it to be towed deeper and faster without increasing the length of tow cable in the water.
The depressor wing attaches to the top of the towfish and pushes it deeper by exerting a downward force
on the towfish as it moves through the water. A safety cable with a shear pin mechanism is attached to
prevent loss of the towfish and wing should it become snagged.

Installation of the optional Depressor Wing is described in sub-section 3.9.2: INSTALLING THE DEPRESSOR

WING, and an ICD drawing is provided in (refer to FIGURE 2-8).

1-6 1.0 OVERVIEW

4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

Figure 1-4: Optional Depressor Wing

1.7.2 Keel Weight

The Keel Weight Kit provides an additional 15 lbs. of weight to the towfish or vertical structures such as
bulkheads.

1.7.3 HullScan Kit

The HullScan kits enables a towfish to be inverted such that the transducer arrays are angled upward
instead of downward, or in the vertical position. In this configuration the towfish can be used to scan the
hulls of ships.

Installation of the HullScan Kit option is in sub-section 3.9.1: INSTALLING THE HULL SCAN Kit.

Figure 1-5: Optional Inverted HullScan Bracket

2-1

2.0 SPECIFICATIONS

The specifications for the EdgeTech 4125 Series Dual-frequency Side Scan Sonar System include electrical,
mechanical, and environmental characteristics for the main system components as follows:

 4125-P Portable Topside Processor
 4125 Towfish
 Cables

NOTE: All specifications are subject to change without notice.

2.1 4125 Topside Processor Specs

The specifications for the 4125-P Portable and 4125 Rack Mount Topside Processor are shown below:

4125 PORTABLE TOPSIDE

4125 RACK MOUNT TOPSIDE

Size:

19.0 cm (7.3 in.) high

49.0 cm (19.2 in.) wide

39.0 cm (15.2 in.) deep

8.3 cm (3.25 in.) high

48.3 cm (19 in.) wide

43.2 cm (17 in.) deep

Weight:

13.2 kg (29 lbs.)
(w/ laptop computer)
10 kg (22 lbs.)
(w/o laptop computer)

6.4 kg (14 lb)

Case construction:

High-impact structural
polypropylene

Aluminum 19-inch rack mount

Case color:

Black

Black and Gold

Case sealing method:

Watertight cover with O-ring seal
and purge valve

N/A (not water tight)

Shipping container type:

Carton

Carton

Shipping container size:

63.5 cm (25 in.) high

53.3 cm (21 in.) wide

53.3 cm (21 in.) deep

61 cm (24 in) high
61 cm (24 in wide

30.5 cm (12 in) deep

Shipping weight:

21.8 kg (48 lbs.)

11.3 Kg (25 lb)

Operating Temperature:

-0–40°C (32–104°F)

0–40°C (32–104°F)

Storage temperature:

-20–60°C (-4–140°F)

-20–60°C (-4–140°F)

2-2 2.0 SPECIFICATIONS

4125 SIDE SCAN SONAR SYSTEM 0004823_REV_F

4125 PORTABLE TOPSIDE

4125 RACK MOUNT TOPSIDE

Operating relative
humidity:

0–80% (non-condensing)

0–80% (non-condensing)

Non-operating storage
relative humidity:

0–100%

0-100%

AC input power:

90–260 VAC, 50/60 Hz, 72–110
watts operating, auto switching

0.7 A/1.3 A at 120 VAC
idling/operating

0.3 A/0.56 A at 240 VAC
idling/operating

90–260 VAC, 50/60 Hz, 72–110 watts
operating, auto switching

0.6 A/1.1 A at 120 VAC
idling/operating

0.3 A/0.56 A at 240 VAC
idling/operating

DC input power:

12–24 VDC, 72 watts operating

4.3 A/6.0 A at 12 VDC
idling/operating

2.4 A/3.3 A at 24 VDC
idling/operating

N/A

Power to towfish:

75 VDC at 1.7 A max

75 VDC at 1.7 A max

Processor:

Intel Pentium M 730, 2.4 GHz

N/A

Memory:

2 GB

N/A

Data storage:

500 GB SATA, 6.0 Gb/s

N/A

Operating system:

Windows 7

N/A

Application software:

DISCOVER 4125

DISCOVER 4125
(on user-supplied computer)

Display:

15.4-inch LCD

N/A

Keyboard:

Laptop keyboard

N/A

Pointing device:

Laptop mouse pad

N/A

Wireless ETHERNET:

Centrino 802.11b

N/A (wired ETHERNET connection
only)

Towfish interface:

VDSL Modem link

VDSL Modem link

Table 2-1: 4125-P Portable Topside Processor

2.1.1 Technical Descriptions of Internal Components

This section provides an overall general description of the hardware elements comprising the 4125-P
Portable and 4125 Rack Mount Topside Processors of the 4125 Series Dual-frequency Side Scan Sonar
System. This information, which includes printed circuit board summary descriptions, chassis photos,
component call-outs, and a wiring diagram, can be useful for troubleshooting purposes and installing
optional equipment. The 4125 Towfish is considered non-user-serviceable and therefore specific