Reson Seabat 8101
Reson Seabat 8101 Reson Seabat 8101
Interface Specification Documentstruct SNP1 /* fragment header (one or more fragments per snippet) */{unsigned long ID; /* identifier code */unsigned short HeaderSize; /* header size, bytes */unsigned short DataSize; /* data size following header, bytes */unsigned long PingNumber; /* sequential ping number */unsigned short Beam; /* beam number, 0..N-1 */unsigned short SnipSamples; /* snippet size, samples */unsigned short GainStart; /* gain at start of snippet, 0.01 dB steps, 0=ignore */unsigned short GainEnd; /* gain at end of snippet, 0.01 dB steps, 0=ignore */unsigned short FragOffset; /* fragment offset, samples from ping */unsigned short FragSamples; /* fragment size, samples */};6.3.11 AlarmThe Alarm Message is Networked based and is transmitted if there is an alarm condition. Themessage is in ASCII.• MESSAGE:!ALARM,NAlarm Messages• PARAMETERS:N – Number of Alarms in Message.Alarm Message – See Below.Available Alarm Messages are:1. LeakSYNTAX:!LEAK,VWHERE:V – Is the Voltage Value in the sonar head.2. Uplink BadSYNTAX:!UPLINKBAD3. Downlink BadSYNTAX:!DOWNLINKBAD______________________________________________________________________SeaBat 8101 Operator's Manual 6-34 (ISD Rev 1.23) Version 3.02
Internal InterfacesChapter 7 - Internal Interfaces7.1 IntroductionThis chapter provides a description of the internal interfaces between the SonarProcessor and the Sonar Head. For external interfaces (to other sensors) seeChapter 6. The following is an Internal Interface summary for the SeaBat 8101system.7.2 SummaryThe combination of Sonar Processor and Sonar Head requires three interfacesfor stand-alone operation:1. Power2. Uplink data3. Downlink data• Power: The sonar Head requires a nominal 24 VDC for operation. However, avoltage range of 22 to 30 volts is acceptable if power is from an ROV.• Uplink: The uplink between the Transceiver Unit and the Sonar Processor is ahigh-speed digital data stream running at 76.8 Mbps. Each frame contains512 bytes transmitted at a frame rate of 15 kHz. Each byte is split into two 4-bit nibbles with the low nibble sent first. Nibbles are 4-to-5 encoded, NRZImodulated and uplinked at 76.8 Mbps. The uplink driver generates 0.7 Vp-psignal into a 75-ohm coax cable.Figure 27, SeaBat 8101 Uplink Example______________________________________________________________________SeaBat 8101 Operator's Manual 7-1 Version 3.02
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Internal InterfacesChapter 7 - Internal Interfaces7.1 IntroductionThis chapter provides a description of the internal interfaces between the SonarProcessor and the Sonar Head. For external interfaces (to other sensors) seeChapter 6. The following is an Internal Interface summary for the SeaBat <strong>8101</strong>system.7.2 SummaryThe combination of Sonar Processor and Sonar Head requires three interfacesfor stand-alone operation:1. Power2. Uplink data3. Downlink data• Power: The sonar Head requires a nominal 24 VDC for operation. However, avoltage range of 22 to 30 volts is acceptable if power is from an ROV.• Uplink: The uplink between the Transceiver Unit and the Sonar Processor is ahigh-speed digital data stream running at 76.8 Mbps. Each frame contains512 bytes transmitted at a frame rate of 15 kHz. Each byte is split into two 4-bit nibbles with the low nibble sent first. Nibbles are 4-to-5 encoded, NRZImodulated and uplinked at 76.8 Mbps. The uplink driver generates 0.7 Vp-psignal into a 75-ohm coax cable.Figure 27, SeaBat <strong>8101</strong> Uplink Example______________________________________________________________________SeaBat <strong>8101</strong> Operator's Manual 7-1 Version 3.02
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