Reson Seabat 8101

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Internal InterfacesTable 12, Uplink Frame FormatByteFunction0 Frame synchronization bit pattern: J-sync followed by K-sync.1 Various telemetry and status messages.2 LSB of frame up-counter. Reset to zero during ping.3 MSB of frame up-counter. Reset to zero during ping.4 I value of receiver 0.5 Q value of receiver 0.6 I value of receiver 1.7 Q value of receiver 1.| |510 I value of receiver 253.511 Q value of receiver 253.Table 13, Uplink Encoding Scheme From 4-Bit Nibbles to 5-Bit CodesNibble4-to-5 (first – last)0000 111100001 010010010 101000011 101010100 010100101 010110110 011100111 011111000 100101001 100111010 101101011 101111100 110101101 110111110 111001111 11101J-Sync 11000K-Sync 10001______________________________________________________________________SeaBat <strong>8101</strong> Operator's Manual 7-2 Version 3.02
Internal Interfaces• Uplink NRZI Modulation: The non-return-to-zero invert-ones (NRZI) modulatoris a flip-flop that toggles when the 4-to-5 bit is 1. This action attenuates thelow-frequency component of the 4-to-5 signal, making it suitable for passagethrough AC-coupled uplink circuitry. The maximum cable length between theSonar Head and the Sonar Processor is 200m. Care should be taken to ensurethat all cable and connectors in the uplink path are correctly terminatedand shielded. It is particularly important that a 75 ohm impedance be maintainedthroughout as even short impedance mis-matched lengths will causesignal degradation.• Downlink: The downlink from the Sonar Processor to the Sonar Head commandsthe transceiver circuits into various states and modes. The downlink isan RS232 type signal at 19200 baud, 8-bit, 1-stop bit, no parity. Nominal amplitudeis ±12V and packets are transmitted at irregular intervals. Thedownlink receiver is opto-isolated for protection. No more than 2ms data delayis tolerated by the transceiver.______________________________________________________________________SeaBat <strong>8101</strong> Operator's Manual 7-3 Version 3.02
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ForwardVersion 2.30 - Incorporated
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Table Of Contents2.4.3 ORIENTATION
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Table Of Contents4.8 OPTION 036, SP
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Table Of Contents6.3.1.26 Motion Se
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Table Of ContentsList of FiguresFig
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Table Of ContentsList of TablesTabl
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General Information1.1 Introduction
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General Information• The Sonar Pr
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General Information1.3 Hardware Com
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General InformationTable 2, SeaBat
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General Information1.3.4 Sonar Head
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General InformationMaterialTable 4,
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General Information1.5 Warranty Inf
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InstallationChapter 2 - Installatio
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InstallationPrior to installation,
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InstallationFigure 8, Sonar Head Ac
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Installation2.4.5.4 ROV/UUV Install
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InstallationThe Ping Hold-off input
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System Operation3.1 IntroductionCha
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System OperationFigure 12, SeaBat 8
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System OperationMain Menu Range Fil
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System OperationBoth the absorption
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System Operation3.6 Display MenuThe
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System Operation3.7.5 HeadTiltThe v
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System Operation3.9.9 OrientedDefin
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System OperationFull-New:RMS-New:Av
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System OperationA single-click of t
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System Operation3.11.4 Communicatio
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System Operation3.11.7 Offset Graph
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System Operation3.13 Changing the D
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Options and UpgradesChapter 4 - Opt
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Options and Upgrades4.5.2 Snippets
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