6-3
1 Introduction
1.1 General
This document describes the Sig. Distributor, which serves as an interconnection device
between speed logs, NWW-82/85 displays, indicators and other users, such as ARPA, auto-
pilots etc. IEC61162/NMEA serial signals and how to connect these cables are described in
document “IEC61162/NMEA0183 User Guide”.
1.2 Definitions and abbreviations
The performance standard IMO MSC.191(79) states that standardized terms and definitions
shall be used. The speed logs have historically used the terms Bottom Track (BT) for Speed
Over the Ground (SOG) and Water Track (WT) for Speed Through the Water (STW) related
information. This document introduces the SOG and STW terms, but due to backward
compatibility and existing menu system, both terms exist.
Abbreviation
Description
NMEA0183
IEC61162-1 ed2 serial interface standard
STW
Speed Trough the Water.
This is equivalent to Water Track (WT) speed (relative)
WT
Water Track resulting speed or distance (relative)
WTL
Water Track Longitudinal and may refer to both
speed and distance
WTT
Water Track Transverse and may refer to both
speed or distance
SOG
Speed Over the Ground.
This is equivalent to Bottom Track (BT) speed (true)
BT
Bottom Track resulting speed or distance (true)
BTL
Bottom Track Longitudinal and may refer to both
speed and distance
BTT
Bottom Track Transverse speed or distance
TRIP
Trip distance counter
TOTAL
Total distance counter
Summary of Contents for JLN-900
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Page 17: ...2 1 JLN 900 Technical Description ...
Page 23: ...2 7 sigbel ...
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Page 31: ...3 1 JLN 900 Technical Specification ...
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Page 39: ...4 1 JLN 900 Installation of Transducer and Bottom Parts ...
Page 59: ...4 21 Transducer and Valve Cover mounted Sea Valve fully opened ...
Page 63: ...4 25 Fig 1 3 Aligning Transducer Connecting Tube ...
Page 76: ...4 38 Mounting Sea Valve on Upper Flange DB ...
Page 81: ...4 43 Gasket Seal 2 ...
Page 83: ...4 45 Transducer and Valve Cover mounted Sea Valve fully opened ...
Page 86: ...4 48 Tube Bracket in its final position with Transducer flush seated ...
Page 88: ...4 50 Fig 2 5 Aligning Transducer Connecting Tube ...
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Page 93: ...5 1 JLN 900 Installation of NJC 80 Sig Processor ...
Page 150: ...6 50 This page is intentionally blank ...
Page 151: ...7 1 JLN 900 Display Technical Description ...
Page 167: ...7 17 No Name Default setting Function SD 4 2 SD 4 3 SD 4 4 there are remote systems connected ...
Page 179: ...8 1 JLN 900 Analog Display Technical Manual ...
Page 183: ...8 5 2 1 Main Dimensions NWW 828 Analog Display ...
Page 184: ...8 6 2 2 Dimmer Potentiometer connection Analog Display ...
Page 186: ...8 8 This page is intentionally blank ...
Page 187: ...9 1 JLN 900 Menu System ...
Page 208: ...9 22 This page is intentionally blank ...
Page 209: ...10 1 JLN 900 WATER TRACK Technical Manual including Menu system ...
Page 233: ...11 1 JLN 900 IEC 61162 NMEA 0183 User Guide ...
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Page 255: ...12 1 JLN 900 Harbour Acceptance Test ...
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Page 267: ...13 1 JLN 900 Calibration and Sea Acceptance Test ...
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Page 281: ...JLN 900 system drawings 14 1 ...
Page 289: ...CFT 780 4 TRANSDUCER 40m 14 9 ...
Page 290: ...NKF 980 Sea Valve 14 10 ...
Page 291: ...NKF 980 Sea Valve 14 11 ...
Page 292: ...NWW 82 MAIN DISPLAY 14 12 ...
Page 293: ...DISPLAY 3 1 87 14 13 ...
Page 294: ...NCM 1080 DIMMER UNIT 14 14 ...
Page 295: ...15 1 JLN 900 Description labels and drawings ...
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Page 301: ...16 1 Annex JLN 900 Speed Log System Manual ...
Page 302: ...16 2 Annex Table of contents ANNEX I EQUIPMENT RECYCLING 3 ANNEX II ENERGY SAVING 5 ...
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