Appendix A – Specifications
Interfacing
Physical features
Control head
Page A-6
Power
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Power consumption: 2 watts
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IR link on control heads
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Two control-head ports
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Three bi-directional NMEA I/O ports
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One bi-directional auxiliary port
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Connects with Northstar 490 Echo Sounder
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Waypoint upload/download capability
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Easy in-field software updates
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VGA monitor output
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200 PPNM speed output
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External alarm output
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External SAVE input
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External MOB input
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NMEA output sentences: APB, BOD, BWC, GGA, GLC,
GLL, GSA, GSV, HSC, MSS, RMA, RMB, RMC, VTG, WCV,
WPL, XTE, ZDA, ZTG (conforms to NMEA version 2.0 and
later. Supports 1.5 GLL, BWC, and RNN)
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NMEA input sentences: TLL ("rattle") and others
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Connects directly to processor with single RG-59 coaxial
cable
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Display screen: 640 x 480 pixel (10.4-inch diagonal),
sunlight viewable, high-temperature, high-contrast,
anti-reflection, backlit, transmissive, 65,536 color LCD
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Large, easy-to-use backlit controls
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Protective plastic cover
961/962 Operations and Reference Manual, Rev. A