IXSEA TT801 User manual

TT801
Remote Control System
User Guide

Remote Control System TT801 – User Guide
MU-TT801-AN rev.6 September 2009
i
Copyright
© 2009, IXSEA, France. All rights reserved. No part of this guide may be
reproduced or transmitted, in any form or by any means, whether electronic, printed
manual or otherwise, including but not limited to photocopying, recording or
information storage and retrieval systems, for any purpose without prior written
permission of IXSEA.
Disclaimer
IXSEA specifically disclaims all warranties, either express or implied, included but
not limited to implied warranties of merchantability and fitness for a particular
purpose with respect to this product and documentation. IXSEA reserves the right
to revise or make changes or improvements to this product or documentation at any
time without notifying any persons of such revision or improvements.
In no event shall IXSEA be liable for any consequential or incidental damages,
including but not limited to loss of business profits or any commercial damages,
arising from the use of this product.
Trademarks
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft
Corporation. Intel and Pentium are registered trademarks and Celeron is a
trademark of Intel Corporation.

Remote Control System TT801 – User Guide
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Overview of the TT801 User Guide
This document is the User Guide for IXSEA’s TT801. It must be read and understood prior
to using the TT801 system.
The manufacturer shall in no case be held liable for any application or use that does not
comply with the stipulations in this guide.
The TT801 User Guide is divided into four parts:
• Part 1: Introduction
This document contains a general description of TT801. Details on warranty, IXSEA
contacts and technical support are also given.
• Part 2: Installation
This document gives the recommendations and the procedures to install the TT801
system.
• Part 3: Operation
This document provides the full description of TT801 operation.
• Part 4: Maintenance
This document provides the preventive and corrective maintenance for the TT801. It gives
some clues as regards troubleshooting.
The abbreviations and acronyms used in this guide are listed hereafter.
A Table of Contents is available in the following pages to allow a quick access to
dedicated information.

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Abbreviations and Acronyms
CAF Common Acknowledgement Frequency
CIF Common Interrogation Frequency
CRF Common Reply Frequency
FR1 Reception frequency number 1 (for RT6xx)
FR2 Reception frequency number 2 (for RT6xx)
FSK Frequency Shift Keying
FT0 Transmitted Frequency number 0 (the same than CAF)
FT1 Frequency response to FR1 (the same than CIF)
FT2 Frequency response to FR2 (the same than IIF)
FT4 Transmitted Frequency number 4 (the same than PFR)
IIF Individual Interrogation Frequency
IRF Individual Reply Frequency
MFSK Multi-Frequency Shift Keying
MSB Most Significant Bit
NA Not Applicable
PFR Pinger FRequency

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Table of Contents
COPYRIGHT .............................................................................................................................I
DISCLAIMER ............................................................................................................................I
TRADEMARKS..........................................................................................................................I
OVERVIEW OF THE TT801 USER GUIDE ..................................................................................II
ABBREVIATIONS AND ACRONYMS ..........................................................................................III
TABLE OF CONTENTS ............................................................................................................IV
IINTRODUCTION ................................................................................................................ 1
I.1 Object ....................................................................................................................................... 1
I.2 Verification of the TT801 Pack Contents .............................................................................. 1
I.3 TT801 Overview....................................................................................................................... 1
I.4 Acoustic Remote Control Principles..................................................................................... 2
I.5 TT801 Components............................................................................................................... 10
I.5.1 Physical Description........................................................................................................... 10
I.5.2 Functional Description ....................................................................................................... 13
I.6 Mechanical/Environmental Characteristics ....................................................................... 14
I.6.1 Cabinet............................................................................................................................... 14
I.6.2 Dunking Transducer........................................................................................................... 14
I.6.3 Shipping ............................................................................................................................. 14
I.6.4 Environmental Conditions.................................................................................................. 14
I.7 Electrical Characteristics ..................................................................................................... 15
I.7.1 Front Panel Features ......................................................................................................... 15
I.7.2 Connectors......................................................................................................................... 15
II INSTALLATION ............................................................................................................... 17
II.1 Object ..................................................................................................................................... 17
II.2 Handling................................................................................................................................. 18
II.3 Storage................................................................................................................................... 19
II.4 General Recommendations ................................................................................................. 20
II.5 Getting Started with the TT801 ............................................................................................ 21
II.5.1 Installing the Connections.................................................................................................. 21
II.5.2 Installing the Acoustic Transducer..................................................................................... 21

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II.5.3 Powering the TT801 .......................................................................................................... 22
III OPERATION ................................................................................................................... 23
III.1 Object..................................................................................................................................... 23
III.2 Battery.................................................................................................................................... 24
III.3 TT801 Menus Overview ........................................................................................................ 24
III.4 Configuring the Transmission/Reception Parameters ..................................................... 27
III.4.1 Definitions .......................................................................................................................... 27
III.4.2 Configuring the Tx/Rx Parameters Without Saving the Configuration .............................. 31
III.4.2.1 Monochromatic Transmission/Interrogation Case (RT/ET6xx, RT/ET8xx, RT9xx) 31
III.4.2.2 FSK Transmission Cases 33
III.4.3 Loading a Pre-Programmed Configuration........................................................................ 37
III.4.4 Saving a New Configuration .............................................................................................. 38
III.4.4.1 Monochromatic Transmission/Interrogation Case (RT6xx, RT8xx, RT9xx) 38
III.4.4.2 FSK Transmission Cases 40
III.4.5 Case of the Pressure Measurement.................................................................................. 43
III.4.6 Case of the Pressure Measurement.................................................................................. 44
III.5 Transmission and Data Reception Display........................................................................ 46
III.6 Activating the Release..........................................................................................................48
III.7 Activating the Pinger Frequency Detection ....................................................................... 49
III.8 Activating the Options..........................................................................................................50
III.9 Using the Serial Link ............................................................................................................ 51
III.9.1 Principle ............................................................................................................................. 51
III.9.2 Serial Link Parameters ...................................................................................................... 51
III.9.3 Message Structure............................................................................................................. 51
III.9.3.1 Transponder Command Type 52
III.9.3.2 Remote Control Unit Command Type 53
IV MAINTENANCE ............................................................................................................... 54
IV.1 Object..................................................................................................................................... 54
IV.2 Routine Maintenance............................................................................................................ 54
IV.3 Corrective Maintenance ....................................................................................................... 58
IV.4 Troubleshooting.................................................................................................................... 64
WARRANTY ......................................................................................................................... 65
CUSTOMER SUPPORT .......................................................................................................... 66
CONTACT ............................................................................................................................ 67
APPENDICES........................................................................................................................ 68

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A. TECHNICAL SPECIFICATIONS .......................................................................................... 68
A.1POWER SUPPLY............................................................................................................. 68
A.2SINGLE PULSE TRANSMISSION ....................................................................................... 68
A.3COMMAND CODES ......................................................................................................... 68
A.4FRONT PANEL FEATURES .............................................................................................. 70
B. FREQUENCY TO DIGIT CONVERSION TABLE .................................................................... 71
C. DUNKING TRANSDUCERS ............................................................................................... 72
C.1STANDARD PET801P-30 P/N 9400057......................................................................... 72
C.2OPTIONAL PET661S-TT, P/N 9400051 WITH INTERCONNECT CABLE P/N 9300117 ......... 73
C.3OPTIONAL AM661S ACOUSTIC MODULE, P/N 2809200 WITH INTERCONNECT CABLE P/N
9300102............................................................................................................................. 75
D. EXAMPLES OF BUILD SHEETS ........................................................................................ 77
D.1EXAMPLE OF AR661 BUILD SHEET ................................................................................ 77
D.2EXAMPLE OF RT661 BUILD SHEET................................................................................. 78
D.3EXAMPLE OF AR861 BUILD SHEET ................................................................................ 80
D.4EXAMPLE OF RT861 BUILD SHEET................................................................................. 82
D.5EXAMPLE OF AR701 BUILD SHEET ................................................................................ 84
GENERAL INDEX .................................................................................................................. 166H85

Remote Control System TT801 – User Guide
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I INTRODUCTION
I.1 Object
This part is the introduction to the TT801 user manual. It contains the description of the
TT801 system, of its components, some principles about acoustic remote control,
warranty, IXSEA contacts and, technical support.
I.2 Verification of the TT801 Pack Contents
You have just received your equipment in a wooden transit case. Before starting the
installation, we recommend to check the contents of the pack and the equipment
immediately on receipt of your TT801 System. Specifically, you should check that all
items are present on delivery and that none has sustained damage.
For that, you will find in the shipping case a packing-list detailing all the shipped items.
This packing list had been completed and checked for by IXSEA shortly before shipment.
Caution
ON RECEIPT OF THE EQUIPMENT, ITS OVERALL CONDITION SHOULD BE CHECKED AND IXSEA
INFORMED OF ANY DAMAGE SUFFERED DURING THE LOADING OPERATIONS.
IT IS HIGHLY RECOMMENDED TO CONTACT THE INSURANCE COMPANY IN CASE DAMAGE IS FOUND.
I.3 TT801 Overview
The TT801 is a low frequency (8 – 16 kHz) transmitter system of coded acoustic signals to
remote control the operating modes of Acoustic Releases and/or Recoverable
Transponders. It uses a highly secure and reliable FSK telemetry link in the LF frequency
range.
TT801 features also a ranging function to help in relocating and monitoring the operation
of the subsea Acoustic Releases and Transponders.
The TT801 remote control deck set is a portable unit equipped with a Lead-Acid battery. It
can be feed with a continuous or alternative external power source. This external power
also allows the charge of internal rechargeable batteries.
It is particularly dedicated to transmission of:
• Acoustic release orders towards AR701AE Shallow Water Acoustic Releases
• Remote control of acoustic codes towards RTxx1 and ARxx1 series
• Single Interrogation pulses to OCEANO Transponders
The receiver section can process:
• Acknowledgement signals of remote control codes
• Information of range and elapsed time
• Telemetry data (Verticality and / Battery voltage of AR/RT800 and RT600 series)
Transmission
Reception

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The main features are:
• Portable
• Range in excess of 10,000m in good environmental conditions
• Display of data and functions on Liquid Crystal Module
• Audio indication during the configuration
• Secure FSK coded commands for absolute multi-path protection
• Receiver of MFSK (Wide-spread spectrum) and Monochromatic (Tonal) signals
• Functions: Rangemeter / Pinger receiver / Telemetry / Audio listening
• Over 30,000 single codes (65,000 couples of codes for AR 701 AE units)
• Internal rechargeable battery and built-in charger
• 115-230V AC Mains power supply
• 24V DC external power supply
I.4 Acoustic Remote Control Principles
Depending on the target (acoustic release or release transponders see Table 1 and Table
2), the TT801 can transmit
• Single tonal pulse for interrogation: Release transponders are generally fitted with
two-factory set interrogation frequencies (Individual Interrogate Frequency or
Common Interrogate Frequency) ranging from 8.5 to 16 kHz (with 500 Hz steps).
The Release Transponder (if ‘ENABLE’) replies after a turn-around time by sending
an acoustic pulse (Common Reply Frequency or Individual Reply Frequency)
• Encoded commands to monitor the operation of Acoustic Release or Release
Transponders. IXSEA technique is a FSK-2 states command burst using 8-bit
words with 2-state coding. Logical bits ‘0’ and ‘1’ are coded with two different carrier
frequencies.
Depending on the target, the transmitted acoustic command may consist of a unique
“DIRECT” sequence (single 8-bit word) or an “ARM & EXECUTION” sequence (two 8-bit
word burst, the ARM code being equivalent to the address of the commanded subsea
unit).
When a command word has been decoded, the AR/RT OCEANO subsea unit transmits
an acoustic Acknowledgement pulse. With some commanded functions, the subsea unit
transmits a second Acknowledgement pulse when the operation is complete. If the
‘DIAGNOSTIC” command was sent, the reply also includes a data using a Pulse-to-Pulse
Time Modulation technique. TT801 detects in sequence the acknowledgment pulses and
the result / message is posted up on the LCD display.
Main features
Transmission