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A reliable, low-noise acquisition system is critical to the productivity and seismic data quality of marine towed streamer surveys. ION’s next generation integrated data acquisition system, DigiSTREAMER, combines the latest solid streamer technology with proven instrumentation for cost-effective, environmentally-friendly acquisition. With its rugged design and construction, DigiSTREAMER supports 20+ streamers engaged in complex 3D, 4D, and WATS acquisition in the harshest sea conditions anywhere in the world. DigiSTREAMER imaging and operational benefits include:

• Environmentally-friendly solid active sections

• Supports 1-20+ streamer operations

• Fully synchronized, continuous acquisition

• Low self-noise

• Reduced weather downtime

• Low frequency response (2 Hz filter)

• Novel hydrophone group design

• Field-repairable sections

• Field-proven results

• Easier handling

DigiSTREAMER™ Integrated Data Acquisition System Performance Data

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The DigiSTREAMER Seismic Recording System is the next generation data acquisition platform for ION Marine Imaging Systems’ solid streamers. The DigiSTREAMER Seismic Recording System incorporates leading technology and architecture to ensure expansion of channel capacity as customers’ needs grow. This system functions in conjunction with DigiSTREAMER Electronic Modules to provide superior collection of data supporting in excess of 20 streamers and/or 19,200 channels at 1 ms. An advanced user-interface with a hands-off approach increases efficiency and automation by providing quick and easy monitoring as well as quality-controlling of all in-water equipment. This “single look” concept provides instantaneous detection of errors and superior quality control.

• Supports multi-streamer operations increasing productivity

• Advanced user-interface increases efficiency for future integration

• Hardware and software designed for one-man operation

• Comprehensive set of quality control, including:

o System event and status checks

o Monitoring of chassis’ health

o Seismic, QC displays

o Acceptance tests

• Automatic observer’s and tape cartridge’s logs

• GPS, time synchronization

DigiSTREAMER™ Seismic Recording System

Seismic Recording System

Streamer Telemetry Interface Chassis

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DigiSTREAMER Seismic Recording System Configuration ION

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Specifications ION Array-processing options Adjacent channel-summing (12.5 summed to 25m) Sample rate (Fs) 1, 2, 4, ms Supported tape drive IBM 3592, any modern peripheral

Interface

Header Gun Ethernet Navigation Ethernet Public network Ethernet hub provided for printer, external data port, x-terminal, etc. Plotter Any CGM plotter External control Configurable polarity; optically-isolated Start Input from navigation controller Fire Output to source controller Time break Input from navigation / source controller QC – seismic data As recorded to or play-backed from tape Types of displays Channel-set plots & trace-gathers; trace-header & channel-set decoders;

system and per shot status lights Real-time; user-defined detection of dead, weak, noisy & spiking channels displayed on cable monitor

Instrument QC

Types of tests Noise, impulse response, total harmonic distortion, cross-feed, digital pattern, dynamic range and spectral analysis

Automated testing Instrumental QC-editing for cables, recorder, beginning-of-line, during-line, end-of-line and user-defined tests

Test output – raw data Tape, display and print Test output – analysis Display, print, plot and file

Cable Power

Voltage 450 VDC, 2 A Power 900 Wmax per streamer Control ON/OFF via operator-interface or power controller Tension-monitoring of cables TBD

Auxiliary Channels

Base number of channels 16 Channel-expansion increment 16 Maximum number of channels 32 Sampling rate Matches seismic channels Maximum input signal 2.5 Vpk Frequency response Matches seismic channels Power consumption 3.5 W for base; 16-channel configuration

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Specifications ION

Physical Characteristics

Data recorder Desktop workstation with dual, 20-inch, color displays Data management 20-inch, color display Plotter (optional) 24-inch, 200/400-dpi, thermal plot Printer HP® postscript laser with Ethernet interface Ambient operating temperature +5º C to +40º C (+41º F to +104º F) Equipment racks Standard 19” 40µ min / Rack, 29” min depth Number of system racks 1 rack for 3 streamers Number of power racks 1 rack per 3 streamer cables

Power Requirement

System base rack includes Concept Systems equipment suite, tape drive unit, RAID unit, Gigabit Ethernet switch

4,500 W

Streamer rack, 3-cable system 1,650 W Streamer rack, 6-cable system 3,300 W

Shipping Weight

System racks 295 kg (650 lbs) Power racks, 3-cable 295 kg (650 lbs) Power racks, 6-cable 454 kg (1000 lbs)

Sampling Rate System Maximums 1 ms 2 ms 4 ms Total capacity of seismic channels 19,200 19,200 19,200 Streamer telemetry interface chassis (up to) 7 7 7

Channels per streamer telemetry interface chassis 2,880 2,880 2,880

Streamer cables per streamer telemetry interface chassis 3 3 3

Cables per system 20 20 20

Order Information IONPlease contact customer service at 713.552.2000.

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The Power Supply Controller allows user control of industry strandard 2.8KW switching power supplies with the added benefits of a precision DC GFI safety shutdown and active balancing of the isolated output to reduce cable voltage stress. It connects to the Streamer Telemetry Interface Chassis.

• Precision DC GFI safety shutdown

• Active balancing of the isolated output to reduce cable voltage stress

• Software controllable over-voltage and over-current protection

• Remote voltage sensing and regulation

• Sophisticated microprocessor architecture allows user to set safety parameters via RS-485 link

• User-friendly software allows user to easily modify safety and control parameters

• Displays power supply and load voltages and currents as well as status information

• Supports multiple operating modes

• Enables complete remote operation and monitoring

DigiSTREAMER™ Power Supply Controller

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The Auxiliary Distribution Box provides the interface for transmitting electrical signals from the shipboard systems to the in-water streamer. Either rack-mounted or bulkhead-mounted, the box connects between the Recording System Streamer Telemetry Interface, the Streamer Power Supply, Positioning Control System (PCS), and other auxiliary equipment such as the ION DigiFIN™ lateral control system, and the Deck Cable which connects to the streamer assembly. Auxiliary streamer signals are available, using standard bayonet-type connectors. The same signals are available at the monitoring jacks on the Auxiliary Distribution Box’s front panel. The Auxiliary Distribution Box Cable Kit includes all cables that are required for interfacing to the Recording System and related recording room equipment.

Specifications ION

Physical Characteristics

Panel width 44.5 cm (17.5 in) Flange (mounting) width 48.3 cm (19 in) Height over unmated connectors 9.6 cm (3.75 in) Depth 7.7 cm (3.05 in) Weight 1.5 kg (4.1 lb) Shipping weight 3.2 kg (8.5 lb)

Electronic Module

Required ADB units per streamer 1

External Connections IONDECK CABLE Deck-cable connection to the in-water streamer APS POWER Future-use power function DigiSTREAMER POWER Streamer high voltage power connection APS SIGNAL Future-use signal function STREAMER RCVR Streamer Telemetry Interface connection COMPASS PCS compass connection ACOUSTIC PCS acoustic connection SPARES Customer-dependent

Order Information IONAuxiliary Distribution Box AS9000-3931 Auxiliary Distribution Box Cable Kit

AS6500-352

Related Manuals Manual, DigiSTREAMER Recording System, Version 1

AS4200-514

Manual, DigiSTREAMER Back Deck, Version 1

AS4200-516

DigiSTREAMER™ Auxiliary Distribution Box

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The Deck Cable provides the cable interface for transmitting electrical signals from the Deck Cable to the Slip Ring. It connects to the Auxiliary Distribution Box. Deck Cables are available in a number of lengths.

Additional deck cable lengths may be available. Please contact our sales team for additional information at +1 281-933-3339.

Order Information ION Length Part Number Deck Cable 55 m (180.45 ft) AS9000-3810-0055 Deck Cable 65 m (213.25 ft) AS9000-3810-0065 Deck Cable 75 m (246.06 ft) AS9000-3810-0075

DigiSTREAMER™ Deck Cable

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The DigiSTREAMER Slip Ring is a custom-designed electrical rotary joint which handles all electrical signals required for DigiSTREAMER. It connects the DigiSTREAMER electrical deck cables to the electrical connectors on the Forward Lead-in Module. It is designed to mount into small cable reel spindles. A Slip Ring Bypass Cable is available for troubleshooting purposes.

• Enables continuous streamer operation during deployment and retrieval

• Small diameter housing fits a wide range of back deck cable reel assemblies

• Lightweight package simplifies installation

• Indicator light provides continuous status of streamer power

Specifications ION

Electrical Specifications

Rings 1-2, 7-8, 19, and 26 rating 600 VDC, 2 A Rings 3-6, 9-18, and 20-25 rating 15 VDC, 0.1 A

Mechanical Specifications

Maximum continuous speed 50 rpm Weight 20.5 kg (55 lbs.) Shipping weight 65.3 kg (144 lbs.) Reel flange mounting surface to connector box end 16 cm (6.3 in.)

Connector box length over unmated connectors 20 cm (7.9 in.)

Minimum mounting bore diameter 14.6 cm (5.75 in.) Minimum mounting bore length 80 cm (31.5 in.) Minimum reel-to-reel clearance requirement 66 cm (26 in.)

Environmental Specifications

Operating temperature range -40°C to 50°C Vibration MIL-STD-167-1

Order Information IONSlip ring electro-optical AS9000-3851-0140 Slip Ring Bypass Cable (10m) AS8000-1875-10

DigiSTREAMER™ Slip Ring

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The DigiSTREAMER Forward Lead-in Module converts optical command and telemetry data to electrical, which passes through the standard non-optical Slip Ring. It connects the Slip Ring and Lead-in. Status is provided on the health of the module as well as the optical conversion process.

Specifications ION

Physical Characteristics

Maximum data rate 33 Mb/s Ambient operating temperature -10°C to +50°C (+13°F to +122°F) Dry weight 5.93 kg (13.06 lb) Shipping weight 6.16 kg (13.58 lb) In-water weight (fresh water) 3.83 kg (8.44 lb) Module length (overall) 0.51 m (20.25 in) Module diameter 76.20 mm (3 in) Module housing Titanium Head connector Souriau 43 PIN MIL STD Tail connector Keyed @ 90°, 90°, 180°

Order Information IONForward Lead-in Module AS9000-3301

DigiSTREAMER™ Forward Lead-in Module

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The DigiSTREAMER Lead-in is an armored streamer-towing cable that transmits optical data and electrical signals between the streamer and the vessel. It operates between the Forward Lead-in Module and the Boot Adaptor. A double-armor design consists of two layers of galvanized-steel armor wires wound in opposite directions to balance any torque applied to the cable. Lengths from 100 m to 1,500 m are available. A polyester hair fairing braided over the outer jacket dampens cable motion and reduces strumming.

• Armored design provides high strength and fatigue resistance

• Installed fairings reduce cable strumming during tow

• Small diameter reduces drag, weight, and storage requirements

• Field-proven, low-loss, high-reliability fiber optic telemetry

• Outer jacket provides saltwater immunity and corrosion resistance for longer life

DigiSTREAMER™ Lead-in

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Additional lead-in lengths may be available. Please contact our sales team for additional information at +1 281-933-3339.

Specifications IONLength 100 m to 1,500 m (328 ft to 4,921 ft) Cable diameter 3.9 cm (1.54 in) with hair fairing

3.7 cm (1.45 in) without hair fairing and with poly jacket 3.3 cm (1.31 in) without hair fairing or poly jacket (the armored cable)

Working load 95,675 N (21,500 lb) Breaking load 400,000 N (90,000 lb) Minimum bend radius 61 cm (24 in) Jacket material Polyurethane Hair fairing material Polyurethane, two rows, 180° apart Length of fairing tuft > 20 cm (8 in) Weight in air 3.17 kg/m (2.13 lb/ft) Weight in seawater 2.08 kg/m (1.4 lb/ft) Shipping reel dimension Configurable Head connector Titanium, keyed @ 90°, 90°,180° Tail connector Titanium, keyed @ 90°, 90°,180° Caution

The tow point on this cable for wide-tow applications requires the use of bend restrictors and swiveling tow clamps to handle transmitting the off-axis load into the cable as well as the resultant torque such loading could produce if not relieved. The cable and the termination are not intended as load-bearing points for off-axis loads. If there is doubt, please consult with our Customer Service representatives for a solution.

Order Information ION Length Weight (in air) Part number Lead-in, DigiSTREAMER 100 m (328 ft) 670 kg (1,477 lb) AS9000-3500-0100 Lead-in, DigiSTREAMER 300 m (984 ft) 1,276 kg (2,813 lb) AS9000-3500-0300 Lead-in, DigiSTREAMER 350 m (1,150 ft) 1,430 kg (3,153 lb) AS9000-3500-0350 Lead-in, DigiSTREAMER 450 m (1,476 ft) 1,752 kg (3,863 lb) AS9000-3500-0450 Related Manuals Manual, DigiSTREAMER Recording System, Version 1

AS4200-514

Manual, DigiSTREAMER Back Deck, Version 1

AS4200-516

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The Boot Adapter provides a towing location for the spread device’s tow clamps and the associated bend restrictors and pre-formed rod sets. The Boot Adapter protects the longer, more-costly lead-in from wear-and-tear damage. It attaches between the Lead-in and the Aft Lead-in Module. Spare Boot Adapter sections are more-easily stocked onboard as compared to long lead-ins and are operationally easier and faster to replace when a failure occurs. Asset and freight costs are reduced because the Boot Adapter minimizes the number of failures on the longer lead-in. The forward termination of this short lead-in is flexible, allowing it to conform to the cable reel’s contour.

• Protects long lead-in cables from tow damage

• Reduces sparing requirements of existing lead-in cables

• Reduces repair costs of existing lead-in cables

• Reduces storage-space requirements

• Less down-time after a tow lead-in failure occurs

Specifications ION

Physical Characteristics

Section length 2.76 m (9.1 ft) under nominal section load of 554 kg Active section — diameter 63.5 mm +/- 3mm (2.6 in) Bend radius (under load) 0.9m Bend radius (no load) 0.6m

Jacket

Type Polyurethane Thickness 2.5 mm Color Natural

Weight

Filled 10.8 kg (23.8 lbs) In seawater 3.5 #@ 0°C in 25 ppm salinity Ballast material Proprietary, non-fluid Stress-members Vectran® --(two of) Safe working load 2,268 kg (5,000 lbs) Stretch coefficient Less than .7% between 1000 and 5000 lb load Head connector - OPTICAL Titanium; keyed @ 90˚, 90˚, 180˚ Tail connector - OPTICAL Titanium; keyed @ 90˚, 90˚, 180˚ Operating temperature -5°C (23°F) to +50°C (122°F) Storage temperature -20°C (-4°F) to +65°C (149°F)

Order Information IONBoot Adapter AS9000-3510

DigiSTREAMER™ Boot Adapter

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The Aft Lead-in Module converts command data electrical to optical and acoustic data optical to electrical telemetry. This module is located between the Boot Adapter and Flexible Cable.

Specifications ION

Physical Characteristics

Maximum data rate 33 Mb/s Ambient operating temperature -10°C to +50°C (+13°F to +122°F) Maximum operating depth 100 m (328 ft) Survival depth 300 m (984 ft) Dry weight 4.87 kg (10.73 lb) Shipping weight 5.39 kg (11.89 lb) In-water weight (fresh water) 3.05 kg (6.72 lb) Module length (overall) 0.47 m (18.44 in) Module diameter 76.20 mm (3 in) Module housing Titanium Head connector Keyed @ 90°, 90°, 180° Tail connector Keyed @ 150°, 150°, 60°

Order Information IONAft Lead-in Module AS9000-3302

DigiSTREAMER™ Aft Lead-in Module

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The DigiSTREAMER Flexible Cable is a short cable section with a coil to be inserted as needed in the front of the configuration. This section alleviates tension from the Aft Lead-in Module by serving as a buffer before the Head Stretch.

Specifications ION

Physical Characteristics

Section length 5.49 m (18 ft) under nominal section load of 554 kg Active section — diameter 53 mm +/- 3mm (5.3 cm) Bend radius (under load) 0.9m Bend radius (no load) 0.6m

Jacket

Type Polyurethane Thickness 2.5 mm Color Natural

Weight

Filled 14.5 kg (40 lbs) In seawater 1.8 kg (4.0 lbs) @ 0°C in 25 ppm salinity Ballast material Proprietary, non-fluid Stress-members Vectran® --(two of) Safe working load 2,268 kg (5,000 lbs) Stretch coefficient Less than .7% between 1000 and 5000 lb load Distance to FSK coil 2.39 meters nominally Head connector Titanium; keyed @ 150˚, 150˚, 60˚ Tail connector Titanium; keyed @ 150˚, 150˚, 60˚ Operating temperature -5°C (23°F) to +50°C (122°F) Storage temperature -20°C (-4°F) to +65°C (149°F) Tail connector Keyed @ 90°, 90°, 180°

Order Information IONFlexible Cable AS9000-3520

DigiSTREAMER™ Flexible Cable

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After the Flexible Cable, the Head Stretch isolates Active Sections from vibrations caused by tow point and wave action. Nylon rope functions as the strength member that stretches with increased tension.

• Environmentally-friendly non-oil-filled design

• Rugged construction resists damage in harsh environments and heavy loads

• Reel operations significantly reduces the amount of handling required

• Low weight, small diameter, and short length ease handling

• Electrical conductors / wire loom can withstand 200% elongation

• Isolator is free-flooding, therefore pressure compensated

• Mechnical stop incorporated to prevent isolator damage

• Mechanical components ultimate break strength 30 kN (6,744 Ibf.)

Specifications ION

Physical Characteristics

Length 4 m (157 in) Extended length 6 m (236.2 in) Diameter 11 cm (4.3 in) Stretch member type Neoprene rubber (reinforced) Weight (in air) 50 kg (110.2 lb) Weight (in seawater) 25 kg (55.1 lb)

Performance

Working load 30,000 N (6,744 Ibf) Ultimate break strength 90,000 N (20,233 Ibf) Mechanical stop engagement 30,000 N (6,744 Ibf) Stretch coefficient 20,000 N/m (4,496 Ibf) Minimum bend radius 15 cm @ 45° (6 in) Working depth 30 m (98 ft) Survival depth 200 m (656 ft)

Order Information IONHead stretch AS9000-3552-0004

DigiSTREAMER™ Head Stretch

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The seismic (receiver-array) streamer section forms part of ION’s DigiSTREAMER integrated data acquisition system. Located directly after the Head Stretch, this section contains two FSK coils with positive position front and rear collar mounts. Forward and Aft Active Sections alternate between Data Acquisition Modules.

• Linear arrays with receiver-optimized pattern (patent pending) to reduce noise

• Non-liquid fill material provides both reduced self-noise and consistent buoyancy benefits

• Acceleration-canceling, Teledyne T-2BX type hydrophones in arrays provide sensitivity over depth and time

• Stress-member chassis of non-magnetic Vectran® provides high-tensile strength and predictable elongation for long tow configurations

• Titanium-metal components for lighter weight, excellent durability, and resistance to corrosion

• Utilizes COTS (commercial off the shelf) technology wherever possible to reduce cost and increase reliability

• Sections are compatible with ION’s integrated development plan which includes inline positioning and control and distributed tension monitoring

DigiSTREAMER™ Active Section

DigiSTREAMER Solid Active Streamer Section

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Specifications IONGroup spacing 12.5 m (41 ft) Groups per section 8

Hydrophone

Domestic type Teledyne T-2BX style; water-resistant Domestic operating depth 100 m max (328 ft) Domestic survival depth 300 m (984 ft) Export type Teledyne T-2BXE style; water-resistant Export survival depth 30 m (98 ft) Hydrophones per group 8 Hydrophone groups Linear array; utilizing a proprietary spacing scheme to reduce noise Group sensitivity 18.2 V/bar Sections per DigiSTREAMER module 2 (one Forward section and one Aft section)

Section telemetry Copper

Physical Characteristics

Section length 99.7 m (327 ft) under nominal section load of 554 kg Active section — diameter 53 mm +/- 3mm (5.3 cm) Bend radius (under load) 0.9m Bend radius (no load) 0.6m

Jacket

Type Polyurethane Thickness 2.5 mm Color Natural

Weight

Filled 227.3 kg (507 lbs) including shipping reel In seawater 1.9 kg buoyant @ 0°C in 25 ppt salinity Shipping reel — dimension Configurable Ballast material Proprietary, non-fluid Stress-members Vectran® --(two of) Safe working load 2,268 kg (5,000 lbs) Stretch coefficient Less than .7% between 1000 and 5000 lb load Distance to FSK coils 25 m (82 ft) and 75 m (246 ft) nominally Head connector (Forward section) Titanium; keyed @ 150˚, 150˚, 60˚ Tail connector (Forward section) Titanium; keyed @ 90˚, 90˚, 180˚ Head connector (Aft section) Titanium; keyed @ 90˚, 90˚, 180˚ Tail connector (Aft section) Titanium; keyed @ 150˚, 150˚, 60˚ Operating temperature -5°C (23°F) to +50°C (122°F) Storage temperature -20°C (-4°F) to +65°C (149°F)

Order Information IONForward Active Section AS9000-3530 Aft Active Section AS9000-3541

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The DigiSTREAMER 16-channel Data Acquisition Module digitizes the hydrophone signals and provides a status channel for operating voltages, temperatures, etc. Connecting Forward and Aft Active Sections, the system supports a maximum of 960 channels per streamer.

• Fully synchronized with the DigiSTREAMER recorder

• Selectable options for digital low-cut filtering and a 2Hz analog filter provide the ability to record one of the widest, data bandwidths in the industry

• Built-in test signals provide full-performance verification directly at the shipboard DigiSTREAMER System

• Streamlined reduced diameter design reduces turbulent flow noise and facilitates handling

• Surface-mounted components provide better reliability, less weight, and low power consumption

• Titanium-alloy housing provides high-tensile strength, better resistance to corrosion, and less weight

DigiSTREAMER™ Data Acquisition Module

DigiSTREAMER Data Acquisition Module

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Specifications ION

Data Acquisition Module

Number of channels per module 16 A/D converter (delta-sigma) 24-bit Dynamic range >116 dB @ 0 dB gain, 2 ms sample rate THD @ maximum input <0.0005% (<106 dB) Pre-amp type Differential voltage input Pre-amp gain 1, 4, 16, 64 (0, 12, 24, 36 dB) Maximum input signal 2.50 Vpk (125 mbarpk) @ 0 dB gain Maximum input signal for rated distortion 1.25 Vpk

Input noise with shorted input 1.8 uVrms (0.09 ubarrms) @ 0 dB gain Channel-to-channel gain accuracy ±1% Channel input impedance 588 Kohm Common-mode rejection >80 dB Internal crosstalk -100 dB max Maximum DigiSTREAMER modules per streamer 60; 12 km active length

Filters

Low-cut filters (with hydrophones connected)

2 Hz @ 6 dB/octave; single-pole; analog / selectable, digital, IIR filters in DigiSTREAMER recorder 0.5 ms 858 Hz (574 dB/octave & greater than –130 dB at Nyquist) 1 ms 429 Hz (574 dB/octave & greater than –130 dB at Nyquist) 2 ms 214 Hz (574 dB/octave & greater than –130 dB at Nyquist)

Anti-alias filters Sample rates (four)

4 ms 107 Hz (574 dB/octave & greater than –130 dB at Nyquist)

Telemetry

Data 33 Mb/s; AMI encoded; twisted pair Commands 2 Mb/s; bi-phase encoded; twisted pair

Physical Characteristics

Ambient operating temperature -10°C to +50°C (+13°F to +122°F) Storage temperature -20°C to +65°C (-4°F to +149°F) Maximum operating depth 100 m (328 ft) Survival depth 300 m (984 ft) Dry weight 3.5 kg (7.7 lb) Shipping weight 4.0 kg (8.8 lb) In-water weight (fresh water) 2.3 kg (5.1 lb) Module length (overall) 0.36 m (14 in) Module diameter 76.2 mm (3 in) Module housing Titanium Head connector Keyed @ 90°, 90°, 180° Tail connector Keyed @ 90°, 90°, 180°

Order Information IONData Acquisition Module AS9000-3306

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The FSK Repeater Module is used to restore communications signal fidelity and perform diagnostics on the FSK transmission lines of DigiSTREAMER. This increases the maximum distance of communication to external devices such as CompassBirds, Acoustics, and Velocimeters, from 6 km to 12 km. Up to two FSK Repeater Modules can be installed among Active Sections. The regenerative technique of repeating signals restores the signal levels without increasing the background noise levels. Diagnostics may be performed from the ION PCS operator's console to graphically analyze communication characteristics of external devices along the cable. The built-in pattern generator feature can be programmed to drive mark, space, and alternating ones patterns on the communication lines to aid in finding electrical faults. Current sensors will not need any modification to function with this system. An upgrade to the dry-end software and firmware will allow the user to communicate with the repeater module in diagnostics mode.

• Regenerative repeater detects and restores Frequency Shift Keyed (FSK) signals in both directions of the DigiSTREAMER system

• Extensive diagnostic and analysis capabilities of the FSK lines using the ION Positioning Control System (PCS)

• Built-in pattern generator aids in electrical fault finding

• Dual Channel - repeats both FSK communication lines

• Up to two FSK Repeater Modules may be installed per cable, allowing electrical isolation and diagnostics at the middle and tail of the cable

DigiSTREAMER™ FSK Repeater Module

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Specifications ION

Physical Characteristics

Ambient operating temperature -10°C to +50°C (+13°F to +122°F) Maximum operating depth 100 m (328 ft) Survival depth 300 m (984 ft) Dry weight 5.569 kg (12.278 lb) Shipping weight 6.04 kg (13.316 lb) In-water weight (fresh water) 3.384 kg (7.46 lb) Module length (overall) 0.546 m (21.5 in) Module diameter 76.2 mm (3 in) Module housing Titanium Head connector Keyed @ 150°, 150°, 60° Tail connector Keyed @ 150°, 150°, 60°

Order Information IONFSK Repeater Module AS9000-3304

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The Tail Stretch attenuates tail buoy-induced noise and vibration. This section joins the final Aft Active Section with the Tail Buoy Module.

• Tuned to isolate low-frequency tail buoy-induced noise

• Contains two communication coils for positioning devices

• Lightweight titanium metal connectors provide excellent durability and resistance to corrosion

Specifications ION

Physical Characteristics

Section length 100 m (328 ft) Cable diameter 5.3 cm (2.1 in) Working load 13,345 N (3,000 lb) Breaking load 36,490 N (8,200 lb) Minimum bend radius .6 m (23.6 in) Extended length 78 m (256 ft) Stretch member Type Nylon rope Diameter 1.27 cm (0.5 in)

Stretch 4 m (13.1 ft) @ 2,224-N (500-lb) tension; 6 m (19.7 ft) @ 4,450-N (1,000-lb) tension

Ballast fluid type Proprietary, Non-fluid Maximum operating depth 100 m (330 ft) Survival depth 300 m (984.3 ft) Weight In air 175.3 kg (386.5 lbs) In seawater -.8 kg (-1.8 lbs) Jacket Type Polyurethane Thickness 0.25 cm (0.1 in) Color Natural Distance to FSK coil 1 1.80 m (5.9 ft) Distance to FSK coil 2 65.70 m (272 ft) Head connector Titanium; keyed @ 150˚, 150˚, 60˚ Tail connector Titanium; keyed @ 150˚, 150˚, 60˚

Order Information IONDigiSTREAMER Tail Stretch AS9000-3560-0100

DigiSTREAMER™ Tail Stretch

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Connecting the Tail Stretch and Tail Swivel, the DigiSTREAMER Tail Buoy Module converts high voltage to low voltage for use in the tail buoy unit.

Specifications ION

Physical Characteristics Power input range 190VDC to 370VDC (0.4A max @ 190VDC) Required modules per streamer 1 Power output 75 W max @ 48 VDC Ambient operating temperate range -20°C to +50°C

Maximum operating depth 100 m (328 ft) Survival depth 300 m (984 ft) Dry weight 5.1 kg (11.2 lb) Shipping weight 5.6 kg (12.3 lb) In-water weight (fresh water) 3.356 kg (7.25 lb) Module length (overall) 0.47 m (18.5 in) Module housing Titanium Head connector Keyed @ 150°, 150°, 60° Tail connector Keyed @ 135°, 135°, 90°

Order Information IONTail Buoy Module AS9000-3305

DigiSTREAMER™ Tail Buoy Module

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The Tail Swivel provides a 12-channel electrical slip ring that provides power and communication signals for the tail buoy. It’s located between the Tail Buoy Module to the Streamer Tail Interface Cable. A non-powered swivel is available for applications where power in not required to the tail buoy.

• Allows cable to rotate freely using a slip ring design

• Multiple channels provide power and data communications

Specifications IONLength 1.1 m (3.6 ft) Cable diameter 7.5 cm (2.96 in) Working load 12,544 N (2,820 lb) Breaking load 62720 N (14,100 lb) Minimum bend radius 38 cm (15 in) Ballast fluid type Isopar® M (type H is optional) Ballast quantity (typical) 2 L (0.6 gal) Max operating depth 100 m (328 ft) Survival depth 300 m (984 ft) Weight empty 7 kg (15 lb) Weight filled 9 kg (19 lb) Weight in seawater 5 kg (10 lb) Shipment weight 9 kg (19 lb) Jacket type PVC/PU Jacket thickness 0.396 cm (0.156 in) Head connector Titanium, keyed @ 150° Tail connector Model 5555F, 16 pin with plastic break away locking ring

Order Information IONDigiSTREAMER Tail Swivel Section AS9000-3150 Manual, DigiSTREAMER Backdeck Operation AS4200-516

DigiSTREAMER™ Tail Swivel

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The Streamer Tail Interface Cable connects after the Tail Swivel section. It has an armored cable that provides a high-strength link to tow larger tail buoys. Power and data pass-through wires are provided to enable tail buoy instrumentation. A polyfoam outer jacket provides buoyancy and long life protection. The armored cable has special breakable steel links designed to separate the tail buoy under excessive tension.

• Armored and foam extruded outer jacket provides high strength and neutral buoyancy

• Cable torque resistance provides stability to the towed tail buoy

• A break-away link prevents tail buoy from dismembering the streamer under excessive tension

• Breakaway electrical connectors reduces damage if a break-away occurs

Additional streamer tail interface cable lengths may be available. Please contact our sales team for additional information at +1 281-933-3339.

Specifications IONLength(s) 25 m to 125 m (82 ft to 410 ft) Diameter 4.83 cm (1.9 in) Working load 22,240 N (5,000 lb) Breaking load 88,960 N (20,000 lb) Minimum bend radius 45.7 cm (18 in) Break away linkage Approximately 22,200 N (5,000 lb) Jacket material Polyfoam Jacket color Yellow Strength member Steel wire armoring Weight in air 1.890 kg/m (1.270 lb/ft) Weight in seawater 0.0454 kg/m (0.0305 lb/ft) Shipment weight including reel 50 m (164 ft) 150.4 kg (403 lb) 100 m (328 ft) 260.1 kg (697 lb) Shipping reel dimensions ≤ 75 meter length 129.5 cm dia x 72.4 cm (51 in dia x 28.5 in) > 75 meter length 155 cm dia x 72.4 cm (61 in dia x 28.5 in) Connectors (head and tail) Model 5555, 16 pin with plastic break away locking ring

Order Information ION Cable Lengths Part Number Streamer Tail Interface Cable 50 m (164 ft) AS9000-3110-0050 100 m (328 ft) AS9000-3110-0100

DigiSTREAMER™ Streamer Tail Interface Cable

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The Tail Buoy Jumper Cable connects at the end of the Streamer Tail Interface Cable and provides power and communication cabling to a user-supplied tail buoy assembly. This cable is required if the ION Tail Buoy Power Regulator unit is purchased. Cable lengths range from 5-13 meters.

Specifications IONCable diameter 2.0 cm (0.8 in)

Cable lengths

4.5 m (14.8 ft) 5 m (16.4 ft) 10 m (32.8 ft) 13 m (42.7 ft)

Number of power pairs 2 Number of data pairs 5 Power wire gauge thickness 14 AWG Data pair gauge thickness 22 AWG Max operating depth 100 m (328 ft) Jacket material Polyurethane Jacket thickness 0.56 cm (0.22 in) Survival depth 300 m (984 ft) Shipping weight 3.6 kg (8 lb) Head connector LRS-5555-16M Tail connector LRS-5555-16F

Order Information IONCable Lengths Part Number 5 m (16.4 ft) AS8000-1733-5 10 m (32.8 ft) AS8000-1733-10

Tail Buoy Jumper Cable

13 m (42.7 ft) AS8000-1733-13 Manual, DigiSTREAMER Backdeck Operation AS4200-516

DigiSTREAMER™ Tail Buoy Jumper Cable

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The Tail Buoy Power Regulator provides a nominal 12- and 24-volt DC supply for use by tail buoy mounted equipment. Typical uses are a strobe light, GPS receiver, and ION DigiRANGE™ acoustic devices. Power is provided from the DigiSTREAMER streamer by connection to the required Tail Buoy Jumper Cable. An internal battery pack provides enough back-up power to last over a day (assuming 18-watt average load) without DigiSTREAMER streamer power. The battery is easily removed from the unit to allow charging in a safe well-ventilated location. The charger is especially suited for recharging the supplied discharged battery.

• Provides DC power for tail buoy devices using streamer power

• Battery backup during absence of streamer power

Specifications ION

Power Regulator

Power output 55 +/- 5 W Voltage output Nominal 13.8 VDC Voltage output temperature coefficient -0.015 V/°C

Low battery limit* 11.5 +/- .2 VDC * Low battery turns output off. Recommended maximum load current 4.5 amps (12V) 1.0 amps (24V)

Height 45.0 cm (17.7 in) Barrel width 32.0 cm (12.6 in) Flange diameter 40.0 cm (15.7 in) Weight 32.0 kg (70.4 lb) Shipping weight 37.0 kg (81.4 lb)

DigiSTREAMER™ Tail Buoy Power Regulator

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Specifications ION

Battery Unit

Battery type Sealed lead-acid Nominal unloaded voltage at full charge 12.6 V at 25°C

Typical charge voltage 13.7 V at 25°C Capacity @ 1.65 amp discharge rate 50 Ah at 25°C

Battery service life >2 years Shelf life @ 20°C (60% to full charge) 1 year at 20°C

Shelf life @ 40°C (60% to full charge) 5 months at 40°C

External charger maximum current at posts 5 A

Charging temperature range -30°C to +60°C Operating temperature range -30°C to +60°C Storage temperature range -30°C to +75°C Discharge and storage temperature range -40°C to +60°C

Vibration MIL-STD-167-1 Survival depth 10 m (32.8 ft)

Power Regulator Connections

AUX (ION SU-8F) Interface to FSK communications pairs and spare pairs Power for mounted equipment (+12 and 24 VDC)

GPS (ION SU-8F) Power source for additional mounted equipment (+12 VDC)

BATT1 (ION SU-4F) 12 volt backup battery w/temperature sensors for charge voltage compensation. (Connected to internal battery. Not connected on unit.)

BATT2 (ION SU-4F) 12 volt backup battery w/o temperature sensors

Streamer (ION SU-16M) Streamer interface to communication pairs, 48 VDC power, and spare pairs

Battery Connections

Connector type ION SU-4M with 12-ft molded pigtail cable

Connector pin assignments

Pin 1, battery positive Pin 2, no connection Pin 3, no connection Pin 4, battery negative

Order Information IONTail Buoy Power Regulator AS9000-3911-1224

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© 2010 ION Geophysical Corporation. All rights reserved. Information subject to change without notice. DigiSTREAMER_System_DS_100804_rev1

United States – Stafford, TX ION [Phone] 281.933.3339 [Fax] 281.879.3500

United States – Harahan, LA Marine Imaging Systems [Phone] 504.733.6061 [Fax] 504.734.9956

England ION Marine Systems Limited [Phone] 44.1483.277644 [Fax] 44.1483.277655

Web Site www.iongeo.com