Dual Channel Graphic Depth Sounder (10 - 265 kHz)
GDS102
Operation and Installation Manual
SKIPPER Electronics AS Telephone:+47 23 30 22 70
Enebakkveien 150 Telefax: +47 23 30 22 71
P. O. Box 151, Manglerud E-mail: support@skipper.no
0612 Oslo, Norway Co. reg. no:NO-965378847-MVA
www.skipper.no
Document no: DM-G002-SB
Rev: 1702
For software rev: 1.13.01
Edition: 2017-06-12
SKIPPER Electronics AS
GDS102 Operation and Installation Manual
IMPORTANT
When doing service or repair, please wait two minutes after power o, before unplugging
internal connectors.
Do not run the sounder for a long time with the transducer in air.
The transducer may be damaged.
Weitergabe sowie vervielfältigung dieser unterlage, verwertung
und mitteilung ihres inhaltes nicht gestattet, soweit nicht
ausdrücklich zugestanden. Zuwiderhandlungen verpichten zu
schadenersatz.
Toute communication ou reproduction de ce document,
toute exploitation ou communication de ou son contenu sont
interdites, sauf autorisation expresse. Tout manquement à
cette règle est illicite et expose son auteur au versement de
dommeges et intèrèts.
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Copying of this document, and giving it to others and the use
or communication of contents thereof, are forbidden without
express authority. Oenders are liable to the payment of
damages.
Sin nuestra expresa autorización, queda terminantemente
prohibida la reproducción total o parcial de este documento,
asì como su uso Indebido y/o su exhibición o comunicación
a terceros. De los infractores Se exigirá el correspondiente
resarcimiento de daños y perjuicios.
Edition: 2017-06-12
GDS102 Operation and Installation Manual
SKIPPER Electronics AS
Contents
TERMINOLOGY .............................................................................................................................6
Units ................................................................................................................................................................... 6
Abbreviations ..................................................................................................................................................... 6
1. INTRODUCTION ........................................................................................................................7
System Summary ............................................................................................................................................... 7
Transducers ........................................................................................................................................................ 7
Primary/Secondary Channels Concept .............................................................................................................. 7
Operator Panel and Data Entry .......................................................................................................................... 7
Fig. 1.1 Operator Unit Panel Layout .................................................................................................................. 8
Recorded Data Storage ...................................................................................................................................... 8
Fig. 1.2. System Diagram .................................................................................................................................. 9
Interfacing ........................................................................................................................................................ 10
Outputs ........................................................................................................................................................................10
Inputs ...........................................................................................................................................................................10
Alarms .............................................................................................................................................................. 10
Additional Features .......................................................................................................................................... 11
Auto Range..................................................................................................................................................................11
External Printer ...........................................................................................................................................................11
Options ........................................................................................................................................................................ 11
Remote Sounding Control ........................................................................................................................................... 11
Sound Speed Calibration ............................................................................................................................................. 11
2 OPERATION ...............................................................................................................................12
Parameter entry ................................................................................................................................................ 12
Fig. 2.1. Setting and Parameter Entry Flowchart ........................................................................................................12
Operation Screens ............................................................................................................................................ 13
Primary Operation Screens (screen 1 - 3) ........................................................................................................ 14
Fig. 2.2. Screen 1. Gain, TVG and alarm settings. .....................................................................................................14
Fig. 2.3. Screen 2. Display and print settings..............................................................................................................15
Fig. 2.4. Screen 3. Power adjustment and options. .....................................................................................................16
Secondary Operation Screens (screen 4 - 12) .................................................................................................. 17
Fig. 2.5. Screen 4. Transducer details. ........................................................................................................................17
Fig. 2.6. Screen 5. Calendar and clock setting. ..........................................................................................................18
Fig. 2.7. Screen 6. Units of measurement. ..................................................................................................................19
Fig. 2.8. Screen 7. Interface setup screen. ...................................................................................................................20
Fig. 2.9. Screen 8. Recordings selection and play back. .............................................................................................21
Fig. 2.10. Screen 9. Recordings options......................................................................................................................22
Fig. 2.11. Screen 10. NMEA control screen. ..............................................................................................................23
Fig. 2.12. Screen 11. System status screen. .................................................................................................................24
Fig. 2.13. Screen 12. Oscilloscope screen. ..................................................................................................................25
Fig. 2.14. Screen 13, Alarm screen. ............................................................................................................................27
Principal Functions. ......................................................................................................................................... 28
Depth Range ................................................................................................................................................................28
Picture Speed ...............................................................................................................................................................28
Screen select ..................................................................................................................................................... 29
Brightness (backlight) adjustment...............................................................................................................................29
Day/Night ....................................................................................................................................................................29
Gain and TVG (Time Variable Gain) ..........................................................................................................................29
Digital indication .........................................................................................................................................................29
Frequency ....................................................................................................................................................................29
Output Power ..............................................................................................................................................................29
Draught and Oset ........................................................................................................................................... 30
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Alarm Settings .............................................................................................................................................................31
ALR(A): ......................................................................................................................................................................32
Alarm acknowledgement ............................................................................................................................................32
Alarm buzzer ...............................................................................................................................................................32
Alarm ID .....................................................................................................................................................................33
Power failure warning .................................................................................................................................................33
GDS102 Operation and Installation Manual
External Printer Operation ............................................................................................................................... 34
Clock and Calendar Settings .......................................................................................................................................34
Data Logging (Recordings Memory) ..........................................................................................................................34
System ON/OFF ..........................................................................................................................................................34
Simulator .....................................................................................................................................................................35
Status Screen ...............................................................................................................................................................35
Oscilloscope Screen ....................................................................................................................................................35
Nonvolatile Parameter Memory. .................................................................................................................................35
Data type .....................................................................................................................................................................35
Basic Algorithm Considerations ...................................................................................................................... 35
Bottom detection .........................................................................................................................................................35
Ping to Ping ltering ...................................................................................................................................................35
3. INSTALLATION ........................................................................................................................36
Standard System Supply .................................................................................................................................. 36
Transducer Installation ..................................................................................................................................... 36
Single transducer location ...........................................................................................................................................36
Dual tranducer location (fore/aft) ................................................................................................................................36
Dual transducer installation(fore/fore) ........................................................................................................................37
Installation Details ......................................................................................................................................................37
Fig. 3.1. Basic System Conguration..........................................................................................................................37
Transducer Junction Box ................................................................................................................................. 38
Fig. 3.2. Transducer junction box................................................................................................................................38
Operator Unit Installation ................................................................................................................................ 39
115/230 V selection on Combo Terminal board inside Display Unit..........................................................................39
Fig 3.3. Operator unit. .................................................................................................................................................40
Fig. 3.4. AC Voltage selection and fuses. .................................................................................................................... 41
Voltage selection connectors and fuses, Terminal Board ............................................................................................41
External Interface Ports ...............................................................................................................................................42
Fig. 3.5. Data Communication Interfaces. ..................................................................................................................42
Fig. 3.6. Data Communication Interfaces. ..................................................................................................................43
Fig. 3.7. Back-up battery jumper JP200, on I/O board. ..............................................................................................44
Interfacing ........................................................................................................................................................ 45
NMEA interface ..........................................................................................................................................................45
Alarm relay..................................................................................................................................................................45
External alarm reset input ...........................................................................................................................................45
Analogue interfaces .....................................................................................................................................................46
Transmitter trigger pulse and bottom pulse outputs ....................................................................................................46
External printer connection .........................................................................................................................................46
EMC ................................................................................................................................................................. 46
Repeaters/Slaves .........................................................................................................................................................47
Remote Keyboard........................................................................................................................................................47
Remote Sounding Control ...........................................................................................................................................47
Optocoupler 2 output...................................................................................................................................................47
Terminal board connections ............................................................................................................................. 48
Fig. 3.8. Terminal board connections ..........................................................................................................................48
Input/Output Circuitry 1 .................................................................................................................................. 49
Fig. 3.9. Input/Output Circuitry 1 ...............................................................................................................................49
Input/Output Circuitry 2 .................................................................................................................................. 50
Fig. 3.10. Input/Output Circuitry 2 .............................................................................................................................50
Input/Output Circuitry 3 .................................................................................................................................. 51
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GDS102 Operation and Installation Manual
Fig. 3.11. Input/Output Circuitry 3 .............................................................................................................................51
SKIPPER Electronics AS
4. START-UP AND SYSTEM ADAPTION ................................................................................52
System Adaptation ........................................................................................................................................... 52
Primary channel assignment .......................................................................................................................................52
Transducer installation position ..................................................................................................................................52
Screen presentation .....................................................................................................................................................52
Alarm limits ................................................................................................................................................................52
Buzzer control .............................................................................................................................................................52
Clock and calendar settings .........................................................................................................................................53
Language .....................................................................................................................................................................53
Units of Measurement .................................................................................................................................................53
NMEA Setup ...............................................................................................................................................................54
NMEA transmitted/output messages ...........................................................................................................................54
NMEA received/input messages .................................................................................................................................55
Fig. 4.1. NMEA connector XJ402. .............................................................................................................................55
Frequency setup ..........................................................................................................................................................56
Filter setup ...................................................................................................................................................................56
Fig. 4.3. SW1 bandwidth settings ...............................................................................................................................56
Fig. 4.2. Frequency settings ........................................................................................................................................56
Options ............................................................................................................................................................. 63
Calibration, sound speed .............................................................................................................................................63
Remote Sounding Control ...........................................................................................................................................63
Ping .............................................................................................................................................................................63
5. TROUBLE SHOOTING ...........................................................................................................64
High voltage measurement. .........................................................................................................................................64
Fig. 5.1. Function LEDs, on terminal board. ..............................................................................................................65
Function LEDs. ...........................................................................................................................................................65
Typical Status Screen 11 Contents ................................................................................................................... 66
6. USER MAINTENANCE ...........................................................................................................69
Transducer maintenance .................................................................................................................................. 69
Operator Unit Maintenance .............................................................................................................................. 69
7. SYSTEM SPECIFICATIONS .................................................................................................70
Functional Properties ....................................................................................................................................... 70
Performance ..................................................................................................................................................... 70
Transducer and Junction Box ......................................................................................................................................71
Operator Unit Cabinet .................................................................................................................................................71
Dimensions ...................................................................................................................................................... 72
8. SERVICE .....................................................................................................................................73
CPU 6742VE Setup ....................................................................................................................................................74
Master Reset Procedure...............................................................................................................................................75
Upgrading Software ....................................................................................................................................................75
9. EMC MOUNTING KIT ............................................................................................................76
10. WARRANTY AND UTILIZATION ...................................................................................... 77
Warranty: .......................................................................................................................................................... 77
Utilization: ....................................................................................................................................................... 77
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Chapter: Terminology
Terminology
Units
Depth Meters (m), Feet (ft), Fathoms (ftm) or Braccias (br)
Picture speed min:sec / div
Speed Kilometer/hour (km), miles/hour(mi/h) or Knots (kn)
Temperature Degrees Celsius (
o
C)
Abbreviations
In addition, the following symbols are used on the runtime screens:
kHz KiloHertz. Frequency
TVG Time variable gain
DBT Depth below transducer
DBK Depth below keel
DBS Depth below surface
ALF Alert sentence complient to IEC62288 2014
ALR Alert sentence
TEMP
o
Text for TEMPerature
GDS102 Operation and Installation Manual
In menu / setup screens, the following abbreviations are used:
NMEA National Marine Electrinics Standard NMEA-0183
LCD Liquid-Crystal Display
IEC International Electrotechnical Commission
IMO International Maritime Organization
AC Alternating Current
DC Direct current
V Voltage
mA MilliAmpere
VGA Video Graphic Display
UTC Coordinated Universal Time
m Meter
EMC Electro Magnetic Compatibility
Draught/Draft Draught is the distance from surface to lowest part of hull (keel).
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GDS102 Operation and Installation Manual
Chapter: 1. Introduction
SKIPPER Electronics AS
1. Introduction
System Summary
GDS102 is a dual channel navigation sounder with a large colour LCD. The echo sounder graphics is
continuously shown on the LCD along with complete navigational details. It is possible to connect an
external printer to the operator unit. The sounder contains a Compact Flash which keeps 24 hours of
recorded information. Depth, time and all available navigation data are stored continuously so that the last
24 hours of information is always available. All this information may also be printed on the external printer.
All IMO (International Maritime Organization) requirements are met or exceeded. Comprehensive interfaces
are available including NMEA 0183 inputs and outputs.
Transducers
GDS102 is prepared for connection of 1 or 2 transducers with a resonant frequency in the range of 10 - 265
kHz. Transmitter stage of the transceiver PCB is tuned to impedance of 100 Ohm, so the transducer type (if
not supplied by SKIPPER) should be selected accordingly. Channel 1 is optimized for higher frequencies
(50 - 265 kHz), while channel 2 is for a lower frequency range (10 - 50 kHz). The operating frequencies for
both channels are preset in production to 50 kHz (ch 2) and 200 kHz (ch 1) or to customer specication. The
frequencies can be changed with DIP switches on the transceiver PCB, if necessary. See”Frequency setup”
on page 56 for further instructions.
Primary/Secondary Channels Concept
In order to avoid confusion if two transducers are used simultaneously, one of the channels is assigned as
primary, the other one - secondary. Assignment of these is programmable by the user, see “Fig. 2.5. Screen
4. Transducer details.” on page 17.
Data from the primary channel will always be used to set alarm, analogue outputs and in the NMEA standard
sentences. Note: If SKIPPER proprietary message is enabled, the depth information from both channels will
be provided and can be recognized by NMEA listeners. See”Maximum range scale in use, meters.
Oset from transducer, meters.” on page 54 for further details about SKIPPER
PSKPDPT format.
It is advisable, that the channel which has a transducer with better installation and performance conditions
is assigned as primary. In most cases that would be the channel with a transducer installed forward. It is
also important that the primary channel is set to an IMO approved transducer for the whole system to be
approved. See “Primary channel assignment” on page 52.
Operator Panel and Data Entry
The operator unit contains a colour LCD, a keyboard with xed keys, soft keys and a rotating encoder. The
function of each soft key depends on the active screen. The buttons are labeled on the lower rim of the LCD.
Several screens are used to enter various settings and calibration parameters. Each screen has a selection
of soft key buttons. Screens 1 through 3 are primary operation screens with appropriate operator controls.
Screens 4 through 13 are calibration, setup and system supervision screens. The various screens will be
described in detail later.
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Chapter: 1. Introduction
GDS102 Operation and Installation Manual
The LCD is backlit, and backlight intensity may be adjusted by the user. Day or night vision modes can be
selected according to the ambient light conditions. The echogram is normally displayed continuously on the
LCD. An optional external printer can be connected, if hardcopy documentation is required. The operator
unit is normally ush mounted.
Recorded Data Storage
Depth and other navigational data are continuously stored for 24 hours in non-volatile memory (Compact
Flash). See “Data Logging (Recordings Memory)” on page 34. An EPSON LQ-350 printer with
Centronics (parallel) interface may be connected for a paper copy, (ask SKIPPER for printer specication).
Alternatively HP Deskjet printer or Epson D88 printer may be used. Printer is only required when hard copy
documentation is necessary.
Warning
False bottom echoes may occur when:
• The bottom is out of range.
• Extreme noise conditions are present.
• Bottom signal may be lost for other reasons, like wakes, or aeration below transducer.
Graphics
Soft key
texts
Soft keys
Fixed keys
Depth
range
Picture
speed
Screen
select
Encoder
Day/Night Brightness
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Fig. 1.1 Operator Unit Panel Layout
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GDS102 Operation and Installation Manual
Chapter: 1. Introduction
SKIPPER Electronics AS
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Fig. 1.2. System Diagram
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Chapter: 1. Introduction
GDS102 Operation and Installation Manual
Interfacing
The GDS102 has various interface possibilities.
Outputs
• Transmitter trigger pulse and bottom pulse outputs. See “Transmitter trigger pulse and bottom pulse
outputs” on page 46.
• Analogue outputs 0 - 10 V and 4 - 20 mA. See “Analogue interfaces” on page 46.
• NMEA 0183 interface outputs of depth information. See “NMEA interface” on page 45 and “Maxi-
mum range scale in use, meters. Oset from
transducer, meters.” on page 54.
• External alarm relay output. See “Alarm relay” on page 45.
• System malfunction optocoupler output.
• External printer and monitor. See “External Interface Ports” on page 42.
Inputs
• NMEA 0183 interface input of position, heading, speed and UTC (Coordinated Universal Time). See
“Maximum range scale in use, meters. Oset from
transducer, meters.” on page 54.
• External alarm reset. See “External printer connection” on page 46 and “Input/Output Circuitry 3”
on page 51.
• External control and synchronization of transmitter (optional). See “Remote Sounding Control” on
page 63.
Alarms
Shallow water alarm may be adjusted on screen 1. See “Fig. 2.2. Screen 1. Gain, TVG and alarm settings.”
on page 14. An NMEA alarm output message ALF or ALR or a relay output is provided in GDS102 for
interface to external alarm systems. An audible alarm is also provided, see “Fig. 2.12. Screen 11. System
status screen.” on page 24.
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GDS102 Operation and Installation Manual
Chapter: 1. Introduction
SKIPPER Electronics AS
Additional Features
In addition to the features demanded by the IMO regulations, the following features are available:
Repeaters/Slaves
Graphic CRT or LCD display or digital depth slave repeaters may be connected to the system.
Auto Range
This feature will automatically adjust the depth range to maintain the bottom contour within the middle
half of the screen height, and is accessible on screen 3. See “Fig. 2.4. Screen 3. Power adjustment and
options.” on page 16.
External Printer
Printer for endless paper or inkjet printer for single sheets (ask SKIPPER for available types) may be connected for hardcopy requirements.
Options
• Remote keyboard.
• Permanent reduction of output power for adaption to various transducers.
Non-standard features, available as options, which are not approved for normal use for navigation by IMO
(contact SKIPPER for more information) include:
Remote Sounding Control
This option lets the GDS102 being controlled remotely in continuous/edge/level/single (manual) ping
modes. It can be useful in case of multiple hydroacoustic installations to avoid interference between
dierent systems. If installed, this option is accessible on screen 3. See “Fig. 2.4. Screen 3. Power
adjustment and options.” on page 16.
Sound Speed Calibration
This option will enable adjustment of the sound speed value used for the depth calculations. The
standard value is 1500 m/s, but the user may set values from 1400 to 1550 m/s to accommodate accurate
propagation speed in known water conditions. If installed, this option is accessible on screen 3. See “Fig.
2.4. Screen 3. Power adjustment and options.” on page 16.
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Any Screen
Any valid fixed or soft key
Press button
once
Rotate encoder in either
direction to obtain desired
state or setting
Keep button pressed
Advances to next
fixed state or
value
Release
button
Check for
desired result
Chapter: 2 Operation
GDS102 Operation and Installation Manual
2 Operation
When the installation is complete, and power is connected to the operator unit, the system is switched on-o
by a power switch inside the cabinet. See “Fig. 3.4. AC Voltage selection and fuses.” on page 41.
Parameter entry
The xed function buttons, the soft key buttons and the rotating encoder allow the user to adjust the
parameters, setpoints and other data. The following owchart illustrates the procedure for changing settings
and entering data. The various screens are shown in detail later.
Example of parameter entry
Suppose you want to enter a value of 800 m for the depth range. The present setting is 100 m. Press the
DEPTH RANGE button and keep it pressed while you turn the encoder clockwise. Observe the depth range
increase to 800 m, let go of the encoder and release the DEPTH RANGE button. You could also have started
from the standard value 1000 m and decreased to 800 m by turning the encoder counter-clockwise.
Buttons with less than 6 possible states or values can be operated without using the encoder at all. The setup
will be remembered when the unit is turned o.
Fig. 2.1. Setting and Parameter Entry Flowchart
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GDS102 Operation and Installation Manual
Chapter: 2 Operation
SKIPPER Electronics AS
Operation Screens
Each of the operation screens contains a graphic picture and a selection of up to 6 soft key buttons. The
various screens are selected by keeping the SCREENS button pressed and rotating the encoder in either
direction. Turning the encoder clockwise cycle the screens in the sequence 1 to 13, and counter clockwise
rotation cycles the screens in the sequence 13 to 1. Screens 1, 2 and 3, covering the primary functions, may
also be cycled by repeatedly pressing the SCREENS button.
The screen layouts are outlined in g. 2.2 through 2.13. The various soft key functions are described with
each screen.
Note: Some of the soft keys on the following pages appear “dimmed”. The reason for this, is that the screen
shots are taken in “demo” mode.
Note: The primary and secondary channels frequencies are indicated at the top of the screens along with
draught settings regardless of the selected screen and graphic screen layout. PRIMARY channel information
is marked by blue colour. (See below).
Time indication
manual or from
GPS
Primary channel
indication
Position
from GPS
Draught
indication
Speeed
indication
from GPS
Heading
indication
from GPS
Draught
indication
Depth type
indication
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Chapter: 2 Operation
GDS102 Operation and Installation Manual
Primary Operation Screens (screen 1 - 3)
The following gures show the operation of the primary operation screens. Some of the soft keys are
self explanatory. Refer to the corresponding chapter in “Principal Functions” for more information about
particular features. See “External Printer Operation” on page 34.
Fig. 2.2. Screen 1. Gain, TVG and alarm settings.
Soft key Name Range/
value
1 SELECT
CHN
2 GAIN 0 - 100 % Ch1: 55%
3 TVG 0 - 100 % Ch1: 65%
4 MARK Line Mark line will be provided both on the screen and paper. (If printer is
5 ALARM ▲ 0 - 99 m 0 m Shallow water alarm adjustment. See “Alarm limits” on page 52 for
6
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Ch1 / Ch2 Ch 2 Selected channel enables adjustment of GAIN and TVG. The frequency
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Default
value
Ch2: 41%
Ch2: 60%
Description
of the channel is displayed next to the channel number.
Gain adjustment. (% represents range 1 - 50 dB). See “Gain and TVG
(Time Variable Gain)” on page 29 for further details about the gain
function.
Time Variable Gain adjustment. (% represents 10 - 50 dB suppression).
See “Gain and TVG (Time Variable Gain)” on page 29 for further details.
active).
further details about alarm function.
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GDS102 Operation and Installation Manual
Chapter: 2 Operation
SKIPPER Electronics AS
Fig. 2.3. Screen 2. Display and print settings.
Soft key Name Range/value Default value Description
1 DISPLAY v.split / h.split
/primary freq
2 Not used.
3 DIGIT Small/large Small Selection of digital depth indication size.
4 PRINT O [not ready]
/on
5 SCREEN Print Screen hardcopy, can be used for documentation and trouble-
6 SYSTEM On/o On Setting the sounder in standby mode, switching o the major
v.split
O Start and stop of continuous printing. Note: If printer is not
Selection of screen layout (either vertical or horizontal split of the
total screen area, only primary transducer). Note: If only one of
the channels is being displayed, the other one can still be activated,
unless it is disabled by soft key LOCATION at screen 4. See “Fig.
2.5. Screen 4. Transducer details.” on page 17.
connected, this button is “Dimmed” and can not be used.
shooting.
power consuming elements (transmitter, LCD screen etc.) The
sounder can be restarted by pressing any button. Note: The unit
is still energized!!! Do not perform any re-connections before
switching o the mains on the terminal PCB inside the cabinet.
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Chapter: 2 Operation
GDS102 Operation and Installation Manual
Fig. 2.4. Screen 3. Power adjustment and options.
Soft key Name Range/value Default value Description
1 SELECT
CHN
2 POWER 1 - 100 % 50 % Transmitter power adjustment.
3 DRAUGHT 0.00 to 99.9 m 0.00 m
4 (optional) SOUND 1400 - 1550 m/s 1500 m/s Sound speed setting.
5 RANGE Manual/autorange Manual Automatic range control.
6 (optional) PING Continuous/edge/
Ch1/Ch2 Ch 2 Selected channel enables adjustment of POWER, and
DRAUGHT. The channel frequency is displayed next to the
channel number.
Draught correction, distance between the lowest point of the
vessel (near the transducer) and the water surface. Setting to
zero will display the depth from the lowest point. Note: Set
individually for both channels.
Also see OFFSET on “Fig. 2.13. Screen 12. Oscilloscope
screen.” on page 25.
External sounding control.
level/manual
Continuous - internal control of the soundings.
Edge - external control of the soundings, synchronized with
an edge (positive or negative) of the external signal.
Level - external control of the soundings, enabling/disabling
continuous soundings by the level of the external signal.
Manual (Single) - control of the soundings by pressing
PICTURE SPEED key.
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GDS102 Operation and Installation Manual
Chapter: 2 Operation
Secondary Operation Screens (screen 4 - 12)
The following gures show the operation of the secondary operation screens.
SKIPPER Electronics AS
Fig. 2.5. Screen 4. Transducer details.
Soft key Name Range/value Default value Description
1 SELECT CHN Ch1/Ch2 Ch 2 Selected channel enables adjustment of LOCATION,
FREQUENCY, SCREEN POS, PRIMARY settings, explained
below. The frequency of the channel is displayed next to the
channel number.
2 LOCATION FWD/AFT/
PORT/STRB/
not inst./pos?
3 FREQUENCY 10 - 265 kHz Ch 1: 200 kHz
4 Not used
5 SCREEN POS (Left/right)/
(upper/lower)
6 PRIMARY Yes/no Ch 2
Pos? Transducer position. Information is being indicated on the
screen for easy reference to the transducer and used in SKIPPER
proprietary NMEA sentence. Note: If “not inst” (not installed)
is selected, the corresponding channel is not operative and will
never be displayed (single channel mode). One channel must
always be operative, therefore “not inst” can be selected only for
one channel at a time.
Adjustment of the frequency of currently selected channel. Note:
Ch 2: 50 kHz
Left Selects the screen position of graphical window of currently
The actual frequency of the channels must be programmed by the
DIP switches on the transceiver PCB. See “Frequency setup” on
page 56 for further instructions.
selected channel. (Dependant of v.split/h.split screen 2).
Toggles PRIMARY property of the selected channel. See
“Primary channel assignment” on page 52 for details.
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Chapter: 2 Operation
GDS102 Operation and Installation Manual
Fig. 2.6. Screen 5. Calendar and clock setting.
Soft key Name Range/value Default value Description
1 Not used.
2 YR.MONTH 01.04-... Year and month setting.
3 DAY 1 - 31 Date setting.
4 HOURS 0 - 23 Hours setting.
5 MINUTES 0 - 59 Minutes setting.
6 Not used.
Note: If time and date information is received from external NMEA talker (e.g. GPS), soft keys 2, 3, 4 and 5
are not user adjustable.
Warning: If the clock is adjusted backwards, see “Fig. 2.10. Screen 9. Recordings options.” on page 22
cleanup records.
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GDS102 Operation and Installation Manual
Chapter: 2 Operation
SKIPPER Electronics AS
Fig. 2.7. Screen 6. Units of measurement.
Soft key Name Range/value Default value Description
1 LANGUAGE English, French, Spanish,
German, Norwegian
2 DEPTH Meters, feet, fathoms,
braccias
3 VESSEL SPD Knots, km/h, mi/h Knots Unit of measurement for vessel speed.
4 SOUND SPD m/s, knots, km/h, mi/h, ft/s m/s Unit of measurement for sound speed.
5 Not used.
6 Not used.
English Screen language selection.
Meters Unit of measurement for depth.
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Fig. 2.8. Screen 7. Interface setup screen.
Soft key Name Range/value Default
value
1 (Optional) ENABLE Pos/neg Positive Selection of polarity of remote sounding control signal.
2 PULSE 100, 200, 400, 2000/nm 200/nm The number of pulses per nautical mile. Setup for pulse
3 ANA UPPER 0 - 49 m 0 m Analogue output shallow limit, depth value
4 ANA LOWER 1 - 5000 m 50 m Analogue output deep limit, depth value corresponding
5
6 MAX RANGE 200 m
500 m
1000 m
1500 m
5000 m
500 m Selection of maximal operating range. The maximal
Description
Note: This function is operative, if remote sounding
control option is installed.
input that can be connected to a speed log.
corresponding to 0 V (4 mA) on the analogue output.
to 10 V (20 mA) on the analogue output.
detectable depth is dependant on the frequency and
properties of the transducer. This setting can be used to
avoid unnecessary high range adjustments by the range
key.
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Fig. 2.9. Screen 8. Recordings selection and play back.
If recording mode is activated, the depth and all essential navigational data along with echo sounder settings will be written into
the les on the Compact Flash disk. The left half of this screen (recordings directory) represents the list of the recorded les
which are sorted by the time of the recordings. The left part of the directory represents the date and hour of the recorded data,
while the right part - minutes of the hour/date, which have been chosen by the cursor in the left part. The cursor is indicated by a
bar and can be advanced by “REC. HOUR” and “REC. MIN” soft keys. A group is dened by setting the rst recording (soft key
SELECT rst) and the last recording (SELECT last). The selected rst and last recordings are indicated in the bottom part of the
directory.
Example: Suppose we need to play back the information which has been recorded between 14.Aug.2012 11:34 and 16 Aug.2012
13:38.
• Advance the bar in the left part of the directory by using soft key “REC. HOUR next” on the position 14.Aug.12 11:xx
• Advance the bar in the right part of the directory on the position 11:34 by using soft key “REC. MIN next”
• Press “SELECT rst” soft key. The group’s rst recording is now selected.
• Advance the bar in the left part of the directory by using soft key “REC. HOUR next” on the position 16.Aug.12 11:xx
• Advance the bar in the right part of the directory on the position 16 Aug 13:38 by using soft key “REC. MIN next”
• Press “SELECT last” soft key. The group’s last recording is now selected.
It is now possible to start a playback. The name of currently displayed recording is indicated in the upper part of the screen.
Note: Playback and recording functions cannot be activated at the same time.
Soft
key
Name Range/value Default value Description
1 REC. HOUR Next Advance cursor to the next hour of recordings in the directory.
2 REC. MIN Next Advance cursor to the next minute of recordings in the directory.
3 SELECT First Select group’s rst recording.
4 SELECT Last Select group’s last recording.
5 RECORDING On/o On Toggles recording mode.
6 PLAY BACK On/o O Toggles playback mode.
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Fig. 2.10. Screen 9. Recordings options.
Soft key Name Range/value Default value Description
1 SCREEN Print Screen hardcopy, can be used for documentation and trouble-shooting.
2 CLEANUP Records If the clock is changed, two les for the same date/time can exist. If
this is the case, the new data will be added to the original data. If the
original data can be destroyed, this button will remove all les with a
date which refers to the future.
3 Not used.
4 D ATA
TYPE
5 Not used.
6 Not used.
Digitized/
analogue
digitized If the user is experiencing problems with the software, the prole data
can be recorded to the internal compact ash. Note: Softy key active
when RECORDING is “o” on screen 8.
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Fig. 2.11. Screen 10. NMEA control screen.
The window on the left part of the screen displays the received or transmitted messages, depending on the
selection of the DISPLAY soft key. Useful for verication of received and transmitted messages.
Soft
Name Range/
key
1 SCREEN Print Screen hardcopy, can be used for documentation and trouble-shooting.
2 NMEA
PORT
3 BAUD 4800/
4 MESSAGE DPT,
5 STATUS On/o Toggles the status of MESSAGE, selected by soft key 4. If STATUS is “on”,
value
1/2 1 Select NMEA port number for individual programming and displaying input/
9600
SKP1,
SKP2,
DBS,
DBT,
DBK,
ALARM
Default
value
4800 Sets the baud rate of the currently selected NMEA PORT (soft key 2). Baud
DPT: On
SKP1: O
SKP2: O
DBS: O
DBT: O
DBK: O
ALARM: On
Description
output data. The text, displayed in the window and the settings, adjustable by
soft keys 3 - 5, corresponds to the NMEA PORT number selected by this soft
key.
rate will always be same on input and output.
List of the supported NMEA formats, provided on the output.
Alarm may be congured as ALF or ALR in “Screen 13”
the message is transmitted by the sounder.
6 DISPLAY O/input/
output
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Input Selects what kind of information is displayed in the text window.
• O - None.
• Input - Received messages at NMEA PORT, selected by soft key 2.
Note: Non accepted messages are displayed in
• Output - Transmitted messages at NMEA PORT, selected by soft key 2.
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yellow text.
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Fig. 2.12. Screen 11. System status screen.
This screen shows a comprehensive list of system settings and parameters.
Soft key Name Range/value Default
value
1 SCREEN Print Screen hardcopy, can be used for documentation and
2 PRINT TYPE HP Deskjet, Epson
D88, LQ-350+
3 SIMULATE On/o O
4
5 STORE Ship def Once a realistic setup has been selected, the user can store
6 RECALL Ship def, fact def Recalls the previously stored setup options. Short push
Epson-D88 The printer type.
Description
trouble-shooting.
(For Epson LQ-300 printer use LQ-350 driver)
Toggles built-in simulator. When simulator is activated “
text is displayed in the lower right corner of the screen.
these settings. If the settings are then changed, the stored
setup can be restored using the RECALL button.
switches between options while a push for about 5 sec
recall the chosen settings. Recall is conrmed by a buzzer
beep.
S”
Note: Soft key 1 SCREEN appears “dimmed” if there is no printer connected.
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Fig. 2.13. Screen 12. Oscilloscope screen.
The screen can be used for transceiver and transducer trouble-shooting. Left part of the screen consists of the
following areas:
A) The graphical real-time presentation of the received echo signal versus time (oscillogram window).
• Horizontal (time) scale factor is indicated in the upper middle part of the oscillogram window. Vertical
scale represents the digitized signal value, which corresponds to the signal strength. The signal is
presented by a green curve.
• Red vertical marker line is indication of detected bottom.
• Blue vertical marker lines indicate other strong echoes which are also taken into consideration by bottom
detection algorithm.
• Horizontal marker line (magenta) is a bottom signal trigger level.
• The logarithmic shaped curve (grey) is displaying the receiver gain settings versus time. The formula G
+ T x log (R) + a is used for gain calculation for each moment of time, where G is a GAIN setting, T -
TVG, R - distance of sound travel and a is a constant, compensating for dierent attenuation of signals
with dierent frequencies.
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.
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Only one channel at a time is displayed in oscillogram window. Soft key 2 SELECT CHN can be used to
select required channel for observation.
The oscillogram on “Fig. 2.13. Screen 12. Oscilloscope screen.” on page 25 shows detected bottom signal
(next to red marker) followed by secondary and third reections of bottom signal. Lower signals at the end
of the time scale represents the noise, which may be caused by vibration, sea conditions etc.
B) Currently used transceiver settings.
The text below oscillogram window is a real-time presentation of the transceiver parameters of the currently
selected channel (by SELECT CHN soft key).
• Ping Transmitted pulse width (μS).
• Delay Time between start of the transmitted pulse and start of digitizing received signal (μS).
• Receiv. Digitizing period (μS).
• Bot. strength Digitized (8-bit) signal value of the bottom echo.
• Frq. Frequency of the currently selected channel (kHz).
C) Additional parameters.
These parameters are for diagnostics and are not adjustable in this version of the operator unit.
D) Soft key options
Soft key Name Range/value Default value Description
1 SCREEN Print Screen hardcopy, can be used for documentation and
troubleshooting.
2 SELECT CHN Ch1/ch2 Ch2\50 Selected channel enables adjustment of GAIN, TVG, POWER.
3 OFFSET -99.99 - 0.00 0.00 m
4 POWER 1 - 100 (%) 50 %
5 GAIN 0 - 100 (%) Ch1: 55%
Ch2: 41%
6 TVG 0 - 100 (%) Ch1: 65%
Ch2: 60%
An oset can be set for each transducer channel allowing the
user to enter an oset from the keel of the vessel (negative
number) If this value is entered, the values sent in NMEA
strings DBS and DBK will reect depth from surface and
real depth from keel. DBT will reect the depth from the
transducer. See “External Printer Operation” on page 34.
Power adjustment. See “Output Power” on page 29.
Gain adjustment (% represents 1 - 50 dB). See”Gain and TVG
(Time Variable Gain)” on page 29 for further details about GAIN
function.
Time Variable Gain adjustment (% represents range 10 - 50 dB
suppression). See “Gain and TVG (Time Variable Gain)” on
page 29 for further details about TVG function.
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Fig. 2.14. Screen 13, Alarm screen.
Soft key Name Range/value Default value Description
1
AL RST ALF/ALR A/ALR B ALF Denition of Alarm sentence as ALF or ALR and how
to react when receiving external acknowledge
2
3
ALARM ▲ ID
(Shallow alarm)
4
5
6
AUDIO ALR ON/OFF ON In ALF always on.
0-999 230 Can only be changed in ALR(A) or ALR(B)
NMEA alarm Id for “Shallow water alarm”
May be switched o in ALR(A) and ALR(B)
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Principal Functions.
Graphics
Soft key
texts
Chapter: 2 Operation
GDS102 Operation and Installation Manual
Soft keys
Encoder
Depth range
Picture speed
Screen
select
Day/Night Brightness
Depth Range
The DEPTH RANGE button can be used to set the depth limit between 10 and 5000 m. The maximal
depth range can be reduced by soft key MAX RANGE, screen 7. See “Fig. 2.8. Screen 7. Interface setup
screen.” on page 20. Note: The shallower range settings will give higher resolution and therefore better
detection accuracy. If autorange function is selected, the range will be adjusted automatically when the
depth line is going outside the upper or lower screen limits. In those cases, newly selected range will be
selected so the bottom line is in the central part of the screen. New position will be optimized based on
the tendency of depth change (increasing or decreasing). The auto range function will operate down to
1600 m, ranges deeper than this must be set manually. This limitation is set to prevent erroneous noice
tracking.
Picture Speed
Picture speed may be selected from 30 seconds to 5.0 minutes per division, dening the speed of graphic
echogram update and horizontal scrolling of the screen. The pulse repetition frequency (PRF) depends on
the selected depth range, and the highest PRF at shallow depths is about 4 pings per second. Automatic
picture speed (auto) can be selected by keeping the PICTURE SPEED key pressed and rotating encoder
anti-clockwise. In this case, the screen will be updated after each transmission, therefore the picture speed
will be dependant on PRF.
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Screen select
The SCREEN button facilitates selection of one of the 12 screen and soft key layouts. The 3 primary
operation screens may be cycled by repeatedly pressing the SCREEN button. Access to the remaining
screens is through encoder operation. The screens are cycled in an endless, bi-directional loop, e.g.
turning the encoder counter-clockwise, will activate screen 12 after screen 1.
Brightness (backlight) adjustment
Backlight may be continuously controlled by using the BRIGHTNESS button and the encoder. Press the
button and rotate the encoder until a satisfactory setting is obtained, then release the button. The setting
is maintained in the non-volatile memory, and the last setting is restored on power-up.
Day/Night
Day/Night vision may be selected by pressing this button.
Gain and TVG (Time Variable Gain)
Gain and TVG settings allow to form the resultant gain curve, used by the receiver ampliers. Signal
attenuation in water is proportional to logarithm of distance traveled. The formula G + T × log (R) + a
is used for gain calculation for each moment of time, where G is a GAIN setting, T - TVG, R - distance
of sound travel and a is a constant, compensating for dierent attenuation of signals with dierent
frequencies. The gain, in principle, is an oset used to compensate for tolerances of the transducers
resultant sensitivity (transmitting and receiving sensitivity).
TVG setting can be used to provide dierent suppression of the echoes returned closer to the transducer.
This may be desirable in case of strong reections from the temperature layers, air bubbles and other
obstacles. Higher TVG settings will result in lower suppression. Both GAIN and TVG should be adjusted
individually for each channel to achieve a stable bottom detection at all depths in the operating range.
Digital indication
On the operation screens, two sizes of large digital depth indicators may be selected from screen 2. See
“Fig. 2.3. Screen 2. Display and print settings.” on page 15.
Frequency
The operating frequency of each channel must be selected by using the DIP switches on the transceiver
PCB, see “Frequency setup” on page 56, while indicated values should be adjusted accordingly on
screen 4, see “Fig. 2.5. Screen 4. Transducer details.” on page 17.
Output Power
Power may be adjusted from 1 to 100 %. Power reduction can be useful in case of dicult shallow
water conditions. Too high power in such cases will possibly saturate the receiver or cause detection of
unwanted secondary bottom or surface echoes.
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Draught and Oset
Draught may be compensated to allow real depth from surface to be shown on the screen and printout.
Draught will always be the distance to the lowest point on the vessel (near the transducer). If the
transducer is not at the lowest point, an oset can be added to compensate for this. This oset is added
such that the depth from keel and depth from transducer can also be given out correctly in the NMEA
formats. The screen will prioritize surface depth, then keel depth and then transducer depth, based
on which parameters are non zero. If two channels are in use, the draught and oset values should
be adjusted for each channel individually. Draught compensation is indicated on top of the screen by
a number and a text (DRFT) to alert the operator to the fact that the shown depth value is adjusted.
Draught is used to correct the Depth Below Transducer (DBT) to Depth Below Keel (DBK) or to Depth
Below Surface (DBS). This is used when the transducer is not at same position as the lower part of the
keel/bottom or if ship want to know the real water depth from surface. Dependant on draught/oset
settings, the text (DBT, DBS or DBK) is also displayed. Draught may be compensated to allow real
depth from surface to be shown on the screen, the printout and in all the NMEA relevant formats.
Draught/Oset settings Top screen indication
Draught = 0 (Default) DBT
Draught > 0 DBS
Oset < 0 DBK
Draught:
Vertical distance between a ship's
waterline and the lowest point of
its keel at the transducer.
Offset:
Vertical distance between a ship's
keel and transducer at the
transducer.
Draught and offset GDS102
The system can send NMEA for DBS, DBT and DBK at the same time.
Note:
DBS, DBT and DBK messages to external eqipment are
from Primary channel (Default Ch 2).
200 kHz
Keel
DBS:
Depth
Below
Surface
transducer Ch1
Offset
DBT:
Depth
Below
Transducer
DBK:
Depth
Below
Keel
Sea line
Draught
value Ch1
Draught: 0.00 m to 99.9 m
Offset: -99.99 to 0.00 m
Draught = 0 m: DBT
Draught > 0 m: DBS
Offset < 0 m: DBK
50 kHz
transducer Ch2
DBS:
Depth
Below
Surface
DBT
Depth
Below
Transducer
:
DBK:
Depth
Below
Keel
Offset
Draught
value Ch2
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Alarm Settings
The GDS102 alarm includes shallow water alarm.
An alarm system may be connected to the GDS102 by NMEA com port and/or the relay contacts.
There are 3 available alarm denitions ALF, ALR(A) and ALR(B) set in “Screen 13”
The default is ALF wich is complient with IEC62288 2014.
Shallow water alarm.
Shallow water settings are performed from screen 1. Alarm limits are referred to the indicated depth.
ALF
Active Alert :
SDALF,1,1,0,102103.00,A,A,V,,230,1,<1-99>,0,Shallow alarm*hh
3 beeps every 7-10 seconds, Alert text on screen ‘ashing red’
SDALC,01,01,00,0,,230,1,<1-99>
Active Alert - silenced:
SDALF,1,1,0,102103.00,A,A,S,,230,1,<1-99>,0,Shallow alarm*hh
Internal buzzer silenced for 30 seconds, Alert text on screen ‘ashing red’
SDALC,01,01,00,0,,230,1,<1-99>
Reply after local acknowledge:
SDALF,1,1,0,102103.00,A,A,A,,230,1,<1-99>,0,Shallow alarm*hh
no beep <1-99> counts for each new occurrence of the alarm , Alert text on screen ‘constant red’
SDALC,01,01,00,0,,230,1,<1-99>
Out of Active state unacknowledged: :
SDALF,1,1,0,102103.00,A,A,U,,230,1,<1-99>,0,Shallow alarm*hh
Alert text on screen ‘ashing red’
SDALC,01,01,00,0,,230,1,<1-99>
Out of Active state acknowledged (normal): :
SDALF,1,1,0,102103.00,A,A,N,,230,1,<1-99>,0,Shallow alarm*hh
Alert text on screen ‘black or disappear’
SDALC,01,01,00,0,,,,<1-99>
Responsbility transfer is not accepted.
Illegal sentences will not receive a response (ARC)
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ALR(A):
When ALR(A) is set:
• Default 0 m = disabled (No shallow alarm functionality, no shallow alarm NMEA message out).
• To enable shallow alarm: Set shallow alarm to >0 m.
• “Shallow water” alarm acknowledge only by local acknowledgement.
• External acknowledge of “Shallow water” alarm will only silence the local buzzer.
Power Alarm State ALR Acknowledge Alarm Relay Local buzzer
O Not active Not active
On No alarm V A Active Not active
On Alarm A V Active Active
On External acknowledge A V Active Not active
On Local acknowledge A A Active Not active
On End of alarm V A Active Not active
Alarm relay active: NO(normally open) = Open, NC (normally closed) = closed
Alarm relay not active: NO = closed, NC = open
ALR(B):
When ALR(B) is set,
• “Shallow water” alarm may be acknowledged by local or external acknowledge.
Power Alarm State ALR Acknowledge Alarm Relay Local buzzer
O Not active Not active
On No alarm V A Active Not active
On Alarm A V Not active Active
On External acknowledge A A Active Not active
On Local acknowledge A A Active Not active
On End of alarm V A Active Not active
Alarm acknowledgement
ALF and ALR(A):The IEC62288 2014 requires local acknowledge of alarm. Local acknowledge is
performed by pressing any active button on the echo sounder.
ALR(B) will accept local acknowledge and external acknowledge by receiving the __ACK,230*hh or by
operating a remote button that shorts the KEYB+ and KEYB- lines on the terminal board, (KEYB+ = J100
pin 10, KEYB- = J100 pin 11.)
Alarm buzzer
The GDS101 is equiped with an internal (local) buzzer. .
ALF: In ALF the buzzer is allways on When allarm buzzer is active it may be silensed for 30 seconds by
receiving __ACN,102104.00,,230,,A,C*hh
In ALR the local alarm buzzer may be enable/disabled from screen 11 (AUDIO ALR). Default is enabled.
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Alarm ID
Alarm identier, used in NMEA alarm sentences to be recognized by the listener and allowing the system to
uniquely identify each alarm type.
ALF, ALR(A) and ALR(B):Shallow water alarm default Id: 230
ALF:The Id is not possible to change.
ALR(A) and ALR(B): The Id may be set in screen 11.
Power failure warning
The alarm relay have 2 possible functionalities:
ALF and ALR(A): The relay will engage at power on and operate as a “power failure” warning
ALR(B): The relay will engage at power on and operate as a Shallow water alarm.
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External Printer Operation
The optional external printer is started and stopped by the PRINT button. The printer may be used for
continuous printing over a period of time or the current screen contents may be dumped to the printer for
reference if something interesting is observed.
• The PRINT button (screen 2) switches continuous printing on and o.
• The SCREEN print buttons will initiate a screen dump of the present screen contents.
Note: A second push on the SCREEN print button before the printing is nish, will terminate the
ongoing printing.
If the printer is switched o or not connected, the print button is dimmed. The printout has limited text
functions. The value besides Prim is the primary frequency. The value besides fr (xx/yy) is the two
frequencies in use.
Clock and Calendar Settings
Manual clock and calendar adjustments are carried out on screen 5, see “Fig. 2.6. Screen 5. Calendar and
clock setting.” on page 18. If a satellite navigator giving UTC messages is connected to the NMEA
input, the clock and calendar will be automatically updated and manual adjustment is not possible.
Data Logging (Recordings Memory)
GDS102 has a capability of recording continuously for 24 hours. All related functions are presented
on screens 8 and 9; see “Fig. 2.9. Screen 8. Recordings selection and play back.” on page 21 and
“Fig. 2.10. Screen 9. Recordings options.” on page 22 for further details. Depth, time and whatever
navigational information is available (position, speed, heading), are stored continuously. The most
important settings of the sounder (range, gain, power etc.) are also being recorded for further possible
analysis. New depth information is continuously stored in the memory while the oldest samples are
discarded. By switching RECORDING “o”, the stored 24 hours will be kept in the memory and no new
samples will be written. As a warning that the memory is not recording, “History o” will ash in the
upper part of the screen.
PLAY BACK on, will start playing the contents of the history memory on the screen. As a warning that
the displayed data is from the memory and not real time, currently used le name is ashing in the upper
part of the screen. The le name contains information about date and time when the data was recorded.
The HOURS and MINUTES buttons used with the encoder, will enable positioning within the 24 hour
memory to observe the desired part of the time frame during playback.
Note: If installed, (default and recommended) history data will be recorded on the external Compact
Flash. If the external Compact Flash is not installed, the history data will be recorded on the “program”
Compact Flash located on the rear side of the CPU board.
System ON/OFF
The soft key SYSTEM on/o on screen 2 can be used to set the sounder in standby mode and switch
o the major power consuming elements (transmitter, LCD screen etc.) The sounder can be restarted by
pressing any button. See “Fig. 2.3. Screen 2. Display and print settings.” on page 15.
Note: The unit is still energized!!! Do not perform any reconnections or service procedures before
switching o the mains on the terminal PCB inside the cabinet.
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Simulator
The GDS102 contains a built in simulator to test the screen and various interface signals. The simulator
can be switched on and o on screen 11. When the simulator is operating, “Demo” will ash in the upper
part of the screen. See “Fig. 2.12. Screen 11. System status screen.” on page 24.
Status Screen
The status screen, screen 11, shows a list of various system parameters useful for documenting the
system setup and system operating status. The contents of this screen will provide valuable information
in situations where manufacturer support is required. See “Fig. 2.12. Screen 11. System status screen.”
on page 24.
Oscilloscope Screen
The oscilloscope screen, screen12, is useful when monitoring transceiver performance. The oscillogram
shows the signal returned from the transceiver plotted against time and will enable service personnel to
evaluate system performance and facilitate any troubleshooting. See “Fig. 2.13. Screen 12. Oscilloscope
screen.” on page 25.
Nonvolatile Parameter Memory.
The system contains non-volatile memory to maintain installation and user parameters like gain, power,
unit of measurement selection, backlight settings, etc. These parameters are kept in the battery backup
memory and are automatically restored on power-up. If the user parameters have never been set, default
values are used. Make sure that jumper JP200 on the I/O board, which activates the battery operation, is
installed in correct position. See “Fig. 3.7. Back-up battery jumper JP200, on I/O board.” on page 44.
Data type
The GDS102 software has a function where the prole data can be saved onto the compact ash disk
used for programming. If the user has problems with the system detecting the bottom even though it is
clearly visible on screen, these les can be sent to SKIPPER for analysis.
Basic Algorithm Considerations
Bottom detection
GDS102 employ a bottom detection algorithm that will try to extract the bottom signal from all kinds of
noise and secondary echoes. When GDS102 is tracking the bottom normally, a thick black line is shown.
If the software can not detect bottom within several pulses, the bottom line disappears and a warning
beep is heard. Dots are then displayed in the digital indicator window instead.
Ping to Ping ltering
Part of the bottom detection algorithm is the ping to ping ltering. The next bottom is searched for
in a time and strength window based on the strength and timing of the previous bottom echoes. This
procedure reduces the probability of tracking schools of sh or secondary echoes as bottom. If no bottom
is detected in the calculated window, the window is gradually increased in size until the full time and
strength window is used.
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Chapter: 3. Installation
GDS102 Operation and Installation Manual
3. Installation
Standard System Supply
A basic GDS102 system consists of the following units. (See “Fig. 3.1. Basic System Conguration.” on
page 37):
1. Operator unit with installation material.
2. Transducer junction box(es). See “Transducer Junction Box” on page 38.
3. Approved transducer steel tank(s) and sea valves.
4. Transducer(s) with attached cable(s) and installation material.
Transducer Installation
Single transducer location
Single transducer
installation
Side view
A transducer should be installed in an area securing
optimal measurement free from noise and aeration.
Transducers are normally installed in the noise free
area in the foreship (see A on g.)
Bubbles
A
Optimal system operation is achieved by tting
the transducer as deep as possible on the hull. The
Bubbles
Bottom view
A
transmitting surface of the transducer must be
installed horizontally.
Do not mount transducers close to the propeller or
aft of other hull installations (outlets, vents or other
protruding details). It is necessary to select a part of the hull that is submerged under all load and speed
conditions, and to avoid positions where air is trapped in heavy weather.
If a at, horizontal section is not available for transducer tting, the shipyard must construct a suitable bed.
Dual tranducer location (fore/aft)
Larger vessels are often tted with two transducers, one
Dual transducer
installation
Side view
Fore/primary transducer
(normally 50 kHz)
fore and one aft (see g.)
The fore transducer is the primary transducer, (normally
50 kHz).
Aft/secondary transducer
(normally 200 kHz)
Often troubled with aeration
in speeds > 4-5 knots
Page 36 of 77
Bubbles
Bubbles
Bottom view
A
200 kHz).
The aft transducer will be troubled with aeration and
A
noise and will not operate in speed >4-5 knots. It is
used to measure aft depth in shallow water.
First Page Last PagePrev Page Next Page
The aft transducer is a secondary transducer, (normally
Edition: 2017-06-12
GDS102 Operation and Installation Manual
Dual transducer installation(fore/fore)
Chapter: 3. Installation
SKIPPER Electronics AS
Dual transducer
installation (additional
low frequency)
Side view
Both transducers
placed fore
For echo sounders with two transducers with
dierent characteristics, (example 50 kHz
navigational and 38 kHz low frequency), both
transducers may be installed fore in the ship.
Bubbles
Bubbles
Bottom view
A
A
Transmission in the air must be avoided! This may cause damage of the element.
Installation Details
Refer to SKIPPER’s standard installation manuals regarding tank/sea valve installation, welding, cable
glands etc. You will nd these on our web site, www.skipper.no.
Standard Tank Steel
Single Bottom Sea Valve
ETNST
Installation Manual
SKIPPER Electronics AS Telephone: +47 23 30 22 70
Enebakkveien 150 Telefax: +47 23 30 22 71
P. O. Box 151, Manglerud E-mail: support@skipper.no
0612 Oslo, Norway Co. reg. no: NO-965378847-MVA
www.skipper.no
Combo Tank Steel
ETNSTC
Installation Manual
SKIPPER Electronics AS Telephone: +47 23 30 22 70
Enebakkveien 150 Telefax: +47 23 30 22 71
P. O. Box 151, Manglerud E-mail: support@skipper.no
0612 Oslo, Norway Co. reg. no: NO-965378847-MVA
www.skipper.no
Document no: DM-BETNST-SA Rev 1003A
Edition: 20100220
Document no: DM-BETNSTC-SA Rev 1003A
Edition: 20100220
Operation and Installation Manual
SB-60-SA
SKIPPER Electronics AS Telephone: +47 23 30 22 70
Enebakkveien 150 Telefax: +47 23 30 22 71
P. O. Box 151, Manglerud E-mail: support@skipper.no
0612 Oslo, Norway Co. reg. no: NO-965378847-MVA
www.skipper.no
Double Bottom Sea Valve
Document no: DM-BSB60-SA Rev 1003A
Edition: 20101020
DB-60-SA
Operation and Installation Manual
SKIPPER Electronics AS Telephone: +47 23 30 22 70
Enebakkveien 150 Telefax: +47 23 30 22 71
P. O. Box 151, Manglerud E-mail: support@skipper.no
0612 Oslo, Norway Co. reg. no: NO-965378847-MVA
www.skipper.no
Document no: DM-BDB60-SB Rev 1003A
Edition: 20101020
Fig. 3.1. Basic System Conguration.
Edition: 2017-06-12
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Page 37 of 77
SKIPPER Electronics AS
Chapter: 3. Installation
GDS102 Operation and Installation Manual
Transducer Junction Box
The standard cable tted on the transducer is 25 m or 40 m and may be shortened. The junction box is used
to interconnect the transducers xed cable to a yard supply extension cable if the total required cable length
is longer than the standard cable. It is required to run the standard cable in a steel protecting pipe to above
the highest water level in tank installations.
Special requirements apply in areas with explosive conditions. The junction box must always be mounted
outside such areas.
Interconnect the transducer pair and its screen in the junction box, but do not ground the screen here.
60(2.362)
60(2.362)
90(3.543)
110(4.330)
7(0.276)
17 (0.669)
50(1.968)
ca.
80(3.150)
Page 38 of 77
Fig. 3.2. Transducer junction box.
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Edition: 2017-06-12
GDS102 Operation and Installation Manual
Chapter: 3. Installation
SKIPPER Electronics AS
Operator Unit Installation
Select a position to provide free view of the panel as well as easy access during operation and service. The
operator unit may be mounted ush (optional bracket are needed) in a panel, desktop mounted or directly
mounted onto a bulkhead. Fig. 3.3 shows the operator unit along with the main installation dimensions. If
the unit is to be ush mounted, the shown cut-out and recession depth dimensions must be observed. See
“Fig 3.3. Operator unit.” on page 40.
Remember to leave room in front of the unit to open the door a full 90 degree.
Do not perform installation work with system power applied!!
Cables are led through the appropriate cable glands as follows:
• The cable from the transducer(s) should normally occupy the left gland.
• The right gland is used for power supply connection.
• The centre ones are used for any interface signals connected.
Power supply may be either 115/230 V AC or 24 V DC. Power consumption is app. 60 W at 24 V, app. 80 W
at 115/230 V AC.
The transducer is always connected with 1 pair plus screen. See “Fig. 3.8. Terminal board connections” on
page 48.
115/230 V selection on Combo Terminal board inside Display Unit
If the AC power system is 115 V, GDS102 must be prepared for 115 V AC by re-connecting the connectors
J102, J103 as shown in g. 3.4. See “Fig. 3.4. AC Voltage selection and fuses.” on page 41.
This diagram also shows position of fuses for 115/230 V AC and 24 V DC. These fuses are normal 5 x 20
mm glass fuses.
AC supply: FS100, FS101: 230 V: 0.5 A slow blow.
FS100, FS101: 115 V: 1 A slow blow.
DC supply: FS102: 24 V: 3.15 A slow blow.
When the installation is complete, and power is connected to the operator unit, the appropriate power
switch by the power terminals is switched on. For daily operation, these switches may stay on and the unit
is switched o by pressing the SYSTEM o button on screen 2. See “Fig. 2.3. Screen 2. Display and print
settings.” on page 15. The unit is switched on by pressing any button.
Both 115/230 V AC and 24 V DC power may be connected and switched on at the same time. If one of these
supplies shuts down, changeover is automatic.
Important
When doing service or repair, please wait two minutes after power o, before unplugging internal
connectors.
Edition: 2017-06-12
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Page 39 of 77
SKIPPER Electronics AS
Chapter: 3. Installation
GDS102 Operation and Installation Manual
Page 40 of 77
Fig 3.3. Operator unit.
First Page Last PagePrev Page Next Page
Edition: 2017-06-12
GDS102 Operation and Installation Manual
Chapter: 3. Installation
Voltage selection connectors and fuses, Terminal Board
SKIPPER Electronics AS
Fig. 3.4. AC Voltage selection and fuses.
Transformer primary to:
• J102 for 230 V AC.
• J103 for 115 V AC.
(Fit dummy plug on opposite connector for protection).
Fuses:
• 230 V AC: FS100 and FS101 must be 0.5 A slow blow.
• 115 V AC: FS100 and FS101 must be 1.0 A slow blow.
• 24 V DC: FS102 must be 3.15 A slow blow.
Edition: 2017-06-12
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Page 41 of 77
SKIPPER Electronics AS
External Interface Ports
Chapter: 3. Installation
GDS102 Operation and Installation Manual
Ground Stud 5 x PG 13,5 cable entry 10-12mm
XJ402: NMEA ports D-type 9 pin female.
XCN6: VGA terminal HDD-type 15 pin female.
XCN3: Printer port D-type 25 pin female.
Fig. 3.5. Data Communication Interfaces.
Page 42 of 77
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GDS102 Operation and Installation Manual
A
B
C
D
E
F
G
H
Parallel Printer Port
Use Twisted pair
DATA Cable
25pin DSUB Connector
in External Panel
NMEA 0183 Ports
Use Twisted pair
DATA Cable
9 pin DSUB Connector
in External Panel
VGA Video Port
Use Twisted pair
LOW CAPASITY
DATA Cable or
COAX for Red/Green/Blue
15 pin HDDSUB Connector
in External Panel
CPU/VGA Board
Chapter: 3. Installation
SKIPPER Electronics AS
RED
GREEN
BLUE
RGND
GGND
SELFTEST
123456789
RED
REDGND
GREEN
GRNGND
BLUE
BLUGND
External
VGA
Monitor
BGND
GROUND
MONID0
MONID1
10111213141516
GND
HSYNC
VSYNC
VSYNC
HSYNC
SHELL
SCREEN
CTS
Use Twisted pair
DSR
GND
DATA Cable
DCD
DTR
22
RI
25 pin DSUB Connector
SGND
on Terminal Board
234567820SGND
TXD
RTS
RXD
Optional RS 232C Port
Port 1. NMEA 0183 Input A=+, B=-
Port 1. NMEA 0183 Output A=+, B=-
J302
Terminal Board
DSUB 25 Female
/STROBE
/AUTOFD
1
2
3
D1D0/INIT
/ERROR
5
4
REPLACED
CREATED
/SELIN
D3
D2
7
9
6
8
101214161820222426
D6
D4
GND
GND
D5
GND
GND
11131517192123
1993.04.22 ØK 2002.05.29 ØK
D7
GND
GDS102 WirC
DOC.TYPE
PROD.NAME
PROD.NO
ARCHIVE REF.
microDESIGN
SKIPPER
/ACK
BUZY
GND
GND
SCHEMATIC
DESC.
2 / 3 Communication
PAGE
PAPEREND
SELECT
GND
25
External Monitor Cable:
< 4m: Low Capacitance,
twisted pairs
> 4m: Coax, consult SKIPPER
BLUE
BLUGND
GREEN
GRNGND
GND
VSYNC
HSYNC
RED
REDGND
123456789101112131415
RED
BLUE
RGND
BGND
GREEN
GGND
SELFTEST
MONID0
GROUND
HSYNC
MONID1
VSYNC
16
SHELL
XCN6
123456789
CPU/VGA Board
HDDSUB 15 Female
RCV1A
RCV1B
XMT1B
XMT1A
Port 2. NMEA 0183 Input A=+, B=-
RCV2A
RCV2B
Port 2. NMEA 0183 Output A=+, B=-
XMT2B
XMT2A
SGND
SGND
Terminal Board
DSUB 9 Female
XJ402
1
2
3
4
5
6
7
8
9
GND
D6
GND
D7
101112
GND
GND
/ACK
BUZY
GND
GND
PAPEREND
141516171819202122232425SGND
D5
D4
D3
D2
D1
D0
/AUTOFD
/STROBE
/ERROR
/INIT
/SELIN
GND
GND
13
SGND
SELECT
XCN3
DSUB 25 Female
Edition: 2017-06-12
Fig. 3.6. Data Communication Interfaces.
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Page 43 of 77
SKIPPER Electronics AS
Back-up battery jumper JP200
Chapter: 3. Installation
GDS102 Operation and Installation Manual
OFF ON
1
2
3
JP200 location on I/O board
Fig. 3.7. Back-up battery jumper JP200, on I/O board.
Important: After the installation is complete and the system power is applied, it is necessary to connect
the back-up battery to provide power to the user parameters during system power failure. Refer to g. 3.7
for the correct setting of the battery jumper “ON” position 2 to 3. This jumper should be set to the “OFF”
position 1 to 2 only during extended unit storage periods. The battery is in use only when no power is
applied to the power terminals.
Page 44 of 77
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GDS102 Operation and Installation Manual
Chapter: 3. Installation
SKIPPER Electronics AS
Interfacing
NMEA interface
The GDS102 NMEA outputs provide NMEA 0183 format information for other equipment with NMEA
0183 inputs. Baud rate is 4800 or 9600, 8 bit, no parity. Several messages may be selected on screen
10 (see “Fig. 2.11. Screen 10. NMEA control screen.” on page 23) and the enabled messages are
transmitted with a maximum interval of one per second. The NMEA inputs accept speed, position,
heading and UTC time messages from various navigators and compasses. The NMEA outputs and
inputs are available on the XJ402 connector on the external panel. See “Fig. 3.5. Data Communication
Interfaces.” on page 42, “Fig. 3.6. Data Communication Interfaces.” on page 43, “Fig. 3.8. Terminal
board connections” on page 48 and “Fig. 4.1. nmea connector XJ402.” on page 55 for more details.
Each of the outputs can supply more than 20 mA and can therefore drive at least 10 other standard
NMEA 0183 inputs.
Note: The factory setting of jumper JP400 on the terminal board (underneath the dual transceiver PCB,
see “Fig. 3.8. Terminal board connections” on page 48) is 1 to 2, providing two individually controlled
NMEA outputs. If the jumper is moved in position 2 to 3, both outputs are controlled (baud rate and
scope of transmitted sentences) by the settings of NMEA PORT 2 on screen 10. If the jumper is removed,
only one NMEA output is available (NMEA PORT 2). In the last case, the settings for output of COM
PORT 1 have no meaning. Both NMEA inputs are always available and individually programmable
(baud rate) regardless of the setting of JP400.
Alarm relay
An alarm relay is provided for interconnection to external alarm systems when alarm setting in
“Screen13” is set to ALR(B). This relay is normally energized, and is released by shallow alarm
condition.
In ALF and ALR(A) this relay may be used as power failure warning.
See “Fig. 3.8. Terminal board connections” on page 48, “Fig. 3.10. Input/Output Circuitry 2” on page
50 and “Fig. 3.11. Input/Output Circuitry 3” on page 51 for connection details.
The terminals have the following meaning:
J100 Symbol J100 # Description
AL COM 3 Common terminal.
AL NO 4 Normally open contact.
AL NC 5 Normally closed contact. (Normal = “No alarm” condition)
External alarm reset input
In ALR(B) the external alarm relay and local audio alarm can be reset externally by a potential free
contact* connected to REMOTE KEY+/- inputs (J100 pin 9 and 11) on the terminal board. If an optional
remote keyboard is used, external reset button can be connected in parallel with the keyboard, or the
remote keyboard can be used for external alarm reset.
* A potential free contact is essentially an electronic galvanically isolated switch which closes when it is
active.
Edition: 2017-06-12
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Page 45 of 77
SKIPPER Electronics AS
Chapter: 3. Installation
GDS102 Operation and Installation Manual
Analogue interfaces
GDS102 is equipped with 2 analogue outputs to supply analogue repeaters or other equipment with
analogue inputs. The signals are galvanically connected to the GDS102. Standard range is 0 - 10 V or
4 - 20 mA corresponding to shallow (ANA UPPER) and deep (ANA LOWER) settings. For more details,
see “Fig. 2.8. Screen 7. Interface setup screen.” on page 20, “Fig. 3.8. Terminal board connections” on
page 48, “Fig. 3.9. Input/Output Circuitry 1” on page 49, “Fig. 3.10. Input/Output Circuitry 2” on
page 50.
Note: The depth information from the sounder’s primary channel is always used for updating analogue
outputs.
The outputs can be calibrated according to the requirements of the external equipment, ref. description of
screen 7. See “Fig. 2.8. Screen 7. Interface setup screen.” on page 20.
J100 Symbol J100 # Description
ANAOUT3 25 Current output (4 - 20 mA).
ANAOUT2 24 Voltage output (0 - 10 V).
ANAOUT1 23 Not used.
ANAREF 22 System ground, common negative reference for analogue outputs.
Transmitter trigger pulse and bottom pulse outputs
Two optocoupler outputs provide a transmitter trigger pulse and bottom pulse output. These outputs can
be used to connect a repeater e.g. SKIPPER IR201, or to synchronize other hydroacoustic equipment to
avoid interference. See “Fig. 3.8. Terminal board connections” on page 48, “Fig. 3.9. Input/Output
Circuitry 1” on page 49 and “Fig. 3.10. Input/Output Circuitry 2” on page 50 for output details.
J100 Symbol J100 # Description
(OPT)VE 15 Transmitter trigger pulse emitter.
OPTVC 14 Transmitter trigger pulse collector.
OPTDE 13 Bottom pulse emitter.
OPTDC 12 Bottom pulse collector.
Note: The value of the depth, measured at the primary channel is always used to control bottom pulse
function. In the case where bottom is not detected, no bottom pulse is provided at all.
External printer connection
The external HP Deskjet or Epson D88/LQ-300+ printer with Centronics interface can be connected
to the GDS102 parallel port, located on the external panel of the cabinet. See “Fig. 3.5. Data
Communication Interfaces.” on page 42 for port allocation and “Fig. 3.6. Data Communication
Interfaces.” on page 43 for connector details.
EMC
Important: To meet the stringent EMC requirements for this type of equipment, two ferrite lters are
supplied with the display unit. The transducer wires should be looped two times through these as shown in
“9. EMC mounting kit” on page 76.
Page 46 of 77
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Edition: 2017-06-12
GDS102 Operation and Installation Manual
Chapter: 3. Installation
SKIPPER Electronics AS
Options
Repeaters/Slaves
Graphic CRT (VGA), LCD displays or digital depth slave repeaters may be connected to the system. The
graphic repeaters may require the installation of line driver units dependant on the distance between the
main system and the repeater. See “Fig. 3.5. Data Communication Interfaces.” on page 42 and “Fig.
3.6. Data Communication Interfaces.” on page 43.
Remote Keyboard
The unit may optionally be operated from a remote keyboard. If you have combo terminal PCB version
E (or higher), a jumper is provided (JP900) for 12 V. See “Fig. 3.8. Terminal board connections” on page
48. Otherwise modications must be made (contact SKIPPER).
J100 Symbol J100 # Description
KEYB- 9 Keyboard reference.
12 volt 10 Keyboard 12 V supply.
KEYB+ 11 Keyboard signal.
Remote Sounding Control
This option lets the GDS102 being controlled remotely in continuous/edge/level/single ping modes.
If installed, these options are accessible on screen 3. See “Fig. 2.4. Screen 3. Power adjustment and
options.” on page 16, “Fig. 3.8. Terminal board connections” on page 48, “Fig. 3.9. Input/Output
Circuitry 1” on page 49 and “Fig. 3.10. Input/Output Circuitry 2” on page 50 for more details.
J100 Symbol J100 # Description
PLSREF 6 Control signal input -.
PULSE2 8 Control signal input +.
Control signal polarity can be selected on screen 7. See “Fig. 2.8. Screen 7. Interface setup screen.” on
page 20.
Optocoupler 2 output
J100 Symbol J100 # Description
OPT2DC 18 Direction Collector.
OPT2VC 17 Velocity Collector.
OPT2EE 16 Common Emitter.
The “silent” (non-transmitting) and “sounding” (transmitting) modus is indicated by the change of the state
of optocoupler OPT2VC/OPT2EE (J100 pin 16 and 17).
• When in “sounding” (transmitting) modus, the light emitting diode inside the opto coupler is ON and
the “switch” is closed.
• Alternatively, when in “silent” (non-transmitting) modus, the light emitting diode inside the opto coupler
is OFF and the “switch” is open.
• When the sounder is turned o, the described “switch” will remain open, indicating no transmission.
Edition: 2017-06-12
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Page 47 of 77
SKIPPER Electronics AS
Chapter: 3. Installation
Terminal board connections
-+
J100
GDS102 Operation and Installation Manual
12
11
10
9
8
7
6
5
4
3
2
1
3.2.1.
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
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3
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1
Page 48 of 77
4
5
9
Fig. 3.8. Terminal board connections
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89745
123
678
3
1
2
6
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GDS102 Operation and Installation Manual
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
1 1
2 2
3 3
4 4
5 5
6 6
REPLACED
PROD.NAME
DOC.TYPE
PROD.NO
ARCHIVE REF.
PAGE
CREATED
DESC.
SKIPPER
microDESIGN
PulsInRef
External Sounding
Control
Analogue Outputs:
Programmable
0 - 10V (Max 500R)or
4 - 20 mA (Min 500R)
Optocoupler Outputs #1V&D:
Max. 30V, 150mA
V: Trigger Pulse
D:Bottom Pulse
AnaOutRef
SCHEMATIC
C
GDS102 Wir C
2004.11.18 ØK2004.11.18 ØK
I/O Circuitry Details
2/2
0805
R1
10R
D1
BAV99
Q1
BC868A
0805
R9
43R
D3
BAV99
DEV27
LM324
D14
BAV99
0805
R22
2K2
AGnd
IC4
LM324
+12V
LM339
IC1
10K
R2
10nF
C1
1M
R1
10K
R3
+5V
A
C
BZX84C10
ZD1
1
2
4
3
OPT
EmitterX
CollectorX
AnaOutX
Ref=2.5V
PulsInX
Input/Output Circuitry 1
Chapter: 3. Installation
SKIPPER Electronics AS
Edition: 2017-06-12
Fig. 3.9. Input/Output Circuitry 1
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Page 49 of 77
SKIPPER Electronics AS
Input/Output Circuitry 2
Chapter: 3. Installation
GDS102 Operation and Installation Manual
Page 50 of 77
Fig. 3.10. Input/Output Circuitry 2
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GDS102 Operation and Installation Manual
4
3
1
2
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5
4
3
123
4
678
9
5
A
B
A
B
4,8
5,9
1,6
2,7
13
12
11
9
Input/Output Circuitry 3
Chapter: 3. Installation
SKIPPER Electronics AS
02 xxx 01
Interconnection possibilities with
Alarm Systems
Edition: 2017-06-12
Fig. 3.11. Input/Output Circuitry 3
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Page 51 of 77
SKIPPER Electronics AS
Chapter: 4. Start-up and system Adaption
GDS102 Operation and Installation Manual
4. Start-up and system Adaption
System Adaptation
Primary channel assignment
Primary channel can be assigned in screen 4 (soft keys SELECT CHN and PRIMARY yes/no). In
general this should be the channel with a transducer which has the most favorable operating properties
(frequency, power etc.) and installation conditions. Depth value from the primary channel is always
used for analogue outputs, NMEA 0183 standard sentences and alarm messages. See “Fig. 2.5. Screen 4.
Transducer details.” on page 17.
Transducer installation position
The position of each transducer can be dened in screen 4, soft key LOCATION. The possible options
are FWD (bow), AFT (aft the ship), PORT (portside) and STRB (starboard). This information will be
indicated on the screen and used in SKIPPER proprietary NMEA sentences. If only one transducer
is installed, it is advisable to select “not inst.” value for the second transducer. This will disable
transmissions on this channel and the text line in the upper part of the screen will contain information
(frequency and draught) about one channel only.
Screen presentation
The desirable screen presentation (vertical/horizontal screen split or single channel indication) can be
selected in screen 2 (soft key DISPLAY, see “Fig. 2.3. Screen 2. Display and print settings.” on page 15).
In case of dual presentation, the position of the channels on the screen is also programmable and can be
selected in screen 4 (soft key SCREEN POS, see “Fig. 2.5. Screen 4. Transducer details.” on page 17). The
size of the digital depth indicator can be selected in screen 2 by soft key DIGIT, see “Fig. 2.3. Screen 2.
Display and print settings.” on page 15.
Alarm limits
Shallow water alarm limit is adjustable in screen 1, see “Fig. 2.2. Screen 1. Gain, TVG and alarm set-
tings.” on page 14.
Note: The depth value measured at the primary channel is always used for alarm control function.
Buzzer control
The local audio alarm (internal buzzer) is allways on in ALF setting. IN ALR(A) and ALR(B) it can be
toggled in screen 13, see “Fig. 2.12. Screen 11. System status screen.” on page 24.
Analogue Outputs Range Selection
Shallow and deep water calibration limits for the analogue output may be set in screen 7, see “Fig. 2.8.
Screen 7. Interface setup screen.” on page 20. ANA UPPER (default value 0 m) corresponds to 0 V
(4 mA) on the output, while ANA LOWER (default value 50 m) corresponds to 10 V (20 mA). If the
measured depth on the primary channel is exceeding ANA UPPER setting, 10 V (20 mA) is provided on
the output.
Page 52 of 77
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GDS102 Operation and Installation Manual
Chapter: 4. Start-up and system Adaption
SKIPPER Electronics AS
Clock and calendar settings
Screen 5 is dedicated to the real-time clock and calendar adjustments, see “Fig. 2.6. Screen 5. Calendar
and clock setting.” on page 18. Note: If time and date information is provided on NMEA inputs, this
will be used by the sounder and the soft keys are not operative.
Language
In screen 6 it is possible to select dierent languages and units of measurement for the screen and printer.
See “Fig. 2.7. Screen 6. Units of measurement.” on page 19. The available languages are: English,
French, Spanish, German and Norwegian.
Units of Measurement
Units of measurement may be selected for:
• Depth: meters, feet, fathoms, braccias.
• Vessel speed: knots, km/h, miles/h.
• Sound speed: m/s, knots, km/h, mi/h, ft/s (feet/s)
Edition: 2017-06-12
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Page 53 of 77
SKIPPER Electronics AS
Chapter: 4. Start-up and system Adaption
GDS102 Operation and Installation Manual
NMEA Setup
Screen 10 is used for verication of received and control of transmitted NMEA messages. See “Fig. 2.11.
Screen 10. NMEA control screen.” on page 23. Two communication ports (NMEA 0183) are provided:
1. XJ402, RCV1A/B - XMT1A/B
2. XJ402, RCV2A/B - XMT2A/B.
Each port can be programmed individually with respect to the baud rate and scope of transmitted
messages. Before conguring the required channel, it must be selected with soft key NMEA PORT.
Note: The text window will represent information which corresponds to the currently selected port. The
type of displayed messages received from external talker (if connected) or transmitted by the sounder, is
selectable by using soft key DISPLAY. For more easy analysis of the window contents, display can be
prevented from continuous update, if DISPLAY o is selected. The baud rate may be set to 4800 or 9600,
4800 being the more common. Transmitted messages are enabled individually by using a pair of soft
keys, MESSAGE and STATUS. To enable/disable particular message, select it from the list by pressing
MESSAGE button until required message appears on the same button and then select the status of this
message (on/o) by pressing soft key STATUS. It is advisable at this stage to set DISPLAY to “output”
mode, to be able to observe current scope of transmitted messages. Transmitted talker identier is SD,
Sounder Depth.
NMEA transmitted/output messages
Depth & Draught $SDDPT,xxxx.x,xxxx.x,xxxx.x*hh<CR><LF>
Depth below surface $SDDBS,xxxx.x,f,xxxx.x,M,xxx.x,F*hh<CR><LF>
Depth below transducer $SDDBT,xxxx.x,f,xxxx.x,M,xxx.x,F*hh<CR><LF>
Depth below keel $SDDBK,xxxx.x,f,xxxx.x,M,xxx.x,F*hh<CR><LF>
SKP1 SKIPPER DPT message Channel1 $PSKPDPT,x.x,x.x,x.x,xx,1,c-c*hh<CR><LF>
SKP2 SKIPPER DPT message Channel2 $PSKPDPT,x.x,x.x,x.x,xx,2,c-c*hh<CR><LF>
ALR Set alarm state “Shallow alarm” $SDALR,134007.34,230,V,A,Shallow alarm*7B
ALF Alert sentence $SDALF,1,1,0,102103.00,A,A,V,,230,1,<1-99>,0,Shallow alarm,*hh
ALC Cyclic alert list. <every 30 sec. $SDALC,01,01,00,1,,230,,<1-99>*hh
In case of multiple transducers installation the following SKIPPER proprietary sentence can be selected
by enabling format SKP1 and/or SKP2.
$PSKPDPT,x.x,x.x,x.x,xx,xx,c--c*hh<CR><LF>
Checksum.
Transducer location. *
Echo sounder channel number (0-99).**
Bottom echo strength (0-9).
Maximum range scale in use, meters.
Oset from transducer, meters.
Water depth relative to transducer, meters.
* Text string, indicating transducer position: FWD/AFT/PORT/STB. If position is not preset by operator,
empty eld is provided.
** = 1 (for SKP1) or 2 (for SKP2). Note: SKP1 format is presenting information, which is linked to the
echo sounder channel 1, while SKP2 - to operating channel 2. Each of these two formats can be enabled/
disabled individually.
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GDS102 Operation and Installation Manual
1
2
3
4
5
6
7
8
9
9 Pin D-SUB (female
connector) in cabinet front
seen from outside.
NMEA IN: Pin 1-2, RCV1 A, B
NMEA IN: Pin 6-7, RCV2 A, B
NMEA OUT: Pin 4-5, XMT1 A, B
NMEA OUT: Pin 8-9, XMT2 A, B
Chapter: 4. Start-up and system Adaption
SKIPPER Electronics AS
NMEA received/input messages
The talker identier is ignored.
Time
Universal time ZZU,xxxxxx
Universal time & local ZLZ,xxxxxx,xxxxxx,-xx
Day, month, year ZDA,xxxxxx,xx,xx,xxxx,-xx
The time values will be indicated in the upper left corner of the screen, example: 11:43.
Position
Geographical lat/lon GLL,xxxx.xx,N,xxxxx.xx,W
GPS position GGA,xxxxxx,xxxx.xxx,N,xxxxx.xxx,W,x
The position values will be indicated on top of the screen, right side, example: E059° 13.12´ N010° 57.34´.
Heading
Heading, true, present HDT,xxx.,T
Heading, magnetic, present HDM,xxx.,M
Heading, compass HCC,xxx.
The heading values will be indicated on top of the screen, right side, example: 123.0°.
Alarm
Silence alarm for 30 seconds ALF ACN,102104.00,,230,<1-999999>,s,c*hh
Request/Repeat ALF info ALF ACN,102104.00,,230,<1-999999>,q,c*hh
Acknowledge alarm ALR(B). ACK,xxx*hh<CR><LF>
Silence alarm ALR(A) ACK,xxx*hh<CR><LF>
Speed
Dual ground/water speed VBW,xx.xx,Axx.xx,a,uxx.xx,uxx.xx,a
The speed value will be indicated on top of the screen, right side, example: 15.55 kts.
Composite
GPS, transit specic RMC,xxxxxx,a,xxxx.xx,N,xxxxx.xx,W,xx.x,xxx.,xxxxxx,,*xx
Track and ground speed VTG,xxx.,T,xxx.,M,xx.x,N,xx.x,K
Heading and water speed VHW,xxx.,T,xxx.,M,xx.x,N,xx.x,K
The composite values will be indicated on dierent positions on top of the screen, depending on message type.
Edition: 2017-06-12
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Fig. 4.1. NMEA connector XJ402.
Page 55 of 77
SKIPPER Electronics AS
Chapter: 4. Start-up and system Adaption
GDS102 Operation and Installation Manual
Frequency setup
The frequencies of both channels are preset in production. It is possible to change the settings. To do so,
it is necessary to set the required values on the DIP switches on the dual transceiver PCB, according to
table 4.3 and adjust the displaying value on screen 4 (soft key FREQUENCY) see “Fig. 2.5. Screen 4.
Transducer details.” on page 17. Note: Both must be adjusted, as adjusting just the indicated values
will not change the actual operating frequency.
• Channel 1 is optimized for frequencies 50 - 265 kHz. The required frequency must be set using
jumper SW3 on the transceiver PCB according to table 4.3. Note: The factory setting is 200 kHz.
• Channel 2 is optimized for frequencies 10 - 50 kHz. Required frequency must be set by jumper SW2
on the dual transceiver PCB according to table 4.3. Note: The factory setting is 50 kHz.
SW2 and SW3 are located in the upper right corner of the transceiver PCB, (see g. 4.2 below).
Transducers must be connected to the corresponding terminals.
Figure showing location of frequency selection
switches SW2, SW3 and lter bandwidth switch
SW1 on dual transceiver board (Dual XC).
T1
Note: PCB on gure rotated 90 degrees.
DD2
SW1 - Filter bandwidth settings
T2
Filter setup
SW1 selects the lter bandwidth
according to the following values:
1 2 Bandwidth
O O 1 kHz
O On 2 kHz
On O 4 kHz (default value)
On On 8 kHz
Fig. 4.3. SW1 bandwidth settings
SW2 - Ch 2: 10 - 50 kHz.
TP7 TP8
SW3 - Ch 1: 50 - 265 kHz.
Fig. 4.2. Frequency settings
Figure is showing default value for SW1.
(See g. 4.2 for location on PCB).
ON
Important: Do not
change default value
before consulting Skipper.
1
2
Important
When doing service or repair, please wait two minutes after power o, before unplugging internal
connectors.
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GDS102 Operation and Installation Manual
Chapter: 4. Start-up and system Adaption
SKIPPER Electronics AS
Table 4.3 Frequency DIP switch settings, SW3 for Ch 1 (50 - 265 kHz), SW2 for Ch 2 (10 - 50 kHz)
Frequency SW2/SW3 settings
Frequency
(kHz)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6 Dip 7 Dip 8
ON ON ON ON ON ON ON ON
OFF ON ON ON ON ON ON ON
ON OFF ON ON ON ON ON ON
OFF OFF ON ON ON ON ON ON
ON ON OFF ON ON ON ON ON
OFF ON OFF ON ON ON ON ON
ON OFF OFF ON ON ON ON ON
OFF OFF OFF ON ON ON ON ON
ON ON ON OFF ON ON ON ON
OFF ON ON OFF ON ON ON ON
ON OFF ON OFF ON ON ON ON
OFF OFF ON OFF ON ON ON ON
ON ON OFF OFF ON ON ON ON
OFF ON OFF OFF ON ON ON ON
ON OFF OFF OFF ON ON ON ON
OFF OFF OFF OFF ON ON ON ON
ON ON ON ON OFF ON ON ON
OFF ON ON ON OFF ON ON ON
ON OFF ON ON OFF ON ON ON
OFF OFF ON ON OFF ON ON ON
ON ON OFF ON OFF ON ON ON
OFF ON OFF ON OFF ON ON ON
ON OFF OFF ON OFF ON ON ON
OFF OFF OFF ON OFF ON ON ON
ON ON ON OFF OFF ON ON ON
OFF ON ON OFF OFF ON ON ON
ON OFF ON OFF OFF ON ON ON
OFF OFF ON OFF OFF ON ON ON
ON ON OFF OFF OFF ON ON ON
OFF ON OFF OFF OFF ON ON ON
ON OFF OFF OFF OFF ON ON ON
OFF OFF OFF OFF OFF ON ON ON
ON ON ON ON ON OFF ON ON
OFF ON ON ON ON OFF ON ON
ON OFF ON ON ON OFF ON ON
OFF OFF ON ON ON OFF ON ON
ON ON OFF ON ON OFF ON ON
OFF ON OFF ON ON OFF ON ON
ON OFF OFF ON ON OFF ON ON
OFF OFF OFF ON ON OFF ON ON
ON ON ON OFF ON OFF ON ON
OFF ON ON OFF ON OFF ON ON
ON OFF ON OFF ON OFF ON ON
OFF OFF ON OFF ON OFF ON ON
ON ON OFF OFF ON OFF ON ON
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SKIPPER Electronics AS
Chapter: 4. Start-up and system Adaption
GDS102 Operation and Installation Manual
Table 4.3 Frequency DIP switch settings, SW3 for Ch 1 (50 - 265 kHz), SW2 for Ch 2 (10 - 50 kHz)
Frequency SW2/SW3 settings
Frequency
(kHz)
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6 Dip 7 Dip 8
OFF ON OFF OFF ON OFF ON ON
ON OFF OFF OFF ON OFF ON ON
OFF OFF OFF OFF ON OFF ON ON
ON ON ON ON OFF OFF ON ON
OFF ON ON ON OFF OFF ON
ON OFF ON ON OFF OFF ON ON
OFF OFF ON ON OFF OFF ON ON
ON ON OFF ON OFF OFF ON ON
OFF ON OFF ON OFF OFF ON ON
ON OFF OFF ON OFF OFF ON ON
OFF OFF OFF ON OFF OFF ON ON
ON ON ON OFF OFF OFF ON ON
OFF ON ON OFF OFF OFF ON ON
ON OFF ON OFF OFF OFF ON ON
OFF OFF ON OFF OFF OFF ON ON
ON ON OFF OFF OFF OFF ON ON
OFF ON OFF OFF OFF OFF ON ON
ON OFF OFF OFF OFF OFF ON ON
OFF OFF OFF OFF OFF OFF ON ON
ON ON ON ON ON ON OFF ON
OFF ON ON ON ON ON OFF ON
ON OFF ON ON ON ON OFF ON
OFF OFF ON ON ON ON OFF ON
ON ON OFF ON ON ON OFF ON
OFF ON OFF ON ON ON OFF ON
ON OFF OFF ON ON ON OFF ON
OFF OFF OFF ON ON ON OFF ON
ON ON ON OFF ON ON OFF ON
OFF ON ON OFF ON ON OFF ON
ON OFF ON OFF ON ON OFF ON
OFF OFF ON OFF ON ON OFF ON
ON ON OFF OFF ON ON OFF ON
OFF ON OFF OFF ON ON OFF ON
ON OFF OFF OFF ON ON OFF ON
OFF OFF OFF OFF ON ON OFF ON
ON ON ON ON OFF ON OFF ON
OFF ON ON ON OFF ON OFF ON
ON OFF ON ON OFF ON OFF ON
OFF OFF ON ON OFF ON OFF ON
ON ON OFF ON OFF ON OFF ON
OFF ON OFF ON OFF ON OFF ON
ON OFF OFF ON OFF ON OFF ON
OFF OFF OFF ON OFF ON OFF ON
ON ON ON OFF OFF ON OFF ON
OFF ON ON OFF OFF ON OFF ON
ON
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GDS102 Operation and Installation Manual
Chapter: 4. Start-up and system Adaption
SKIPPER Electronics AS
Table 4.3 Frequency DIP switch settings, SW3 for Ch 1 (50 - 265 kHz), SW2 for Ch 2 (10 - 50 kHz)
Frequency SW2/SW3 settings
Frequency
(kHz)
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6 Dip 7 Dip 8
ON OFF ON OFF OFF ON OFF ON
OFF OFF ON OFF OFF ON OFF ON
ON ON OFF OFF OFF ON OFF ON
OFF ON OFF OFF OFF ON OFF ON
ON OFF OFF OFF OFF ON OFF ON
OFF OFF OFF OFF OFF ON OFF ON
ON ON ON ON ON OFF OFF ON
OFF ON ON ON ON OFF OFF ON
ON OFF ON ON ON OFF OFF ON
OFF OFF ON ON ON OFF OFF ON
ON ON OFF ON ON OFF OFF ON
OFF ON OFF ON ON OFF OFF ON
ON OFF OFF ON ON OFF OFF ON
OFF OFF OFF ON ON OFF OFF ON
ON ON ON OFF ON OFF OFF ON
OFF ON ON OFF ON OFF OFF ON
ON OFF ON OFF ON OFF OFF ON
OFF OFF ON OFF ON OFF OFF ON
ON ON OFF OFF ON OFF OFF ON
OFF ON OFF OFF ON OFF OFF ON
ON OFF OFF OFF ON OFF OFF ON
OFF OFF OFF OFF ON OFF OFF ON
ON ON ON ON OFF OFF OFF ON
OFF ON ON ON OFF OFF OFF ON
ON OFF ON ON OFF OFF OFF ON
OFF OFF ON ON OFF OFF OFF ON
ON ON OFF ON OFF OFF OFF ON
OFF ON OFF ON OFF OFF OFF ON
ON OFF OFF ON OFF OFF OFF ON
OFF OFF OFF ON OFF OFF OFF ON
ON ON ON OFF OFF OFF OFF ON
OFF ON ON OFF OFF OFF OFF ON
ON OFF ON OFF OFF OFF OFF ON
OFF OFF ON OFF OFF OFF OFF ON
ON ON OFF OFF OFF OFF OFF ON
OFF ON OFF OFF OFF OFF OFF ON
ON OFF OFF OFF OFF OFF OFF ON
OFF OFF OFF OFF OFF OFF OFF ON
ON ON ON ON ON ON ON OFF
OFF ON ON ON ON ON ON OFF
ON OFF ON ON ON ON ON OFF
OFF OFF ON ON ON ON ON OFF
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Page 59 of 77
SKIPPER Electronics AS
Chapter: 4. Start-up and system Adaption
GDS102 Operation and Installation Manual
Table 4.3 Frequency DIP switch settings, SW3 for Ch 1 (50 - 265 kHz), SW2 for Ch 2 (10 - 50 kHz)
Frequency SW2/SW3 settings
Frequency
(kHz)
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6 Dip 7 Dip 8
ON ON OFF ON ON ON ON OFF
OFF ON OFF ON ON ON ON OFF
ON OFF OFF ON ON ON ON OFF
OFF OFF OFF ON ON ON ON OFF
ON ON ON OFF ON ON ON OFF
OFF ON ON OFF ON ON ON OFF
ON OFF ON OFF ON ON ON OFF
OFF OFF ON OFF ON ON ON OFF
ON ON OFF OFF ON ON ON OFF
OFF ON OFF OFF ON ON ON OFF
ON OFF OFF OFF ON ON ON OFF
OFF OFF OFF OFF ON ON ON OFF
ON ON ON ON OFF ON ON OFF
OFF ON ON ON OFF ON ON OFF
ON OFF ON ON OFF ON ON OFF
OFF OFF ON ON OFF ON ON OFF
ON ON OFF ON OFF ON ON OFF
OFF ON OFF ON OFF ON ON OFF
ON OFF OFF ON OFF ON ON
OFF OFF OFF ON OFF ON ON
ON ON ON OFF OFF ON ON OFF
OFF ON ON OFF OFF ON ON OFF
ON OFF ON OFF OFF ON ON OFF
OFF OFF ON OFF OFF ON ON OFF
ON ON OFF OFF OFF ON ON OFF
OFF ON OFF OFF OFF ON ON OFF
ON OFF OFF OFF OFF ON ON OFF
OFF OFF OFF OFF OFF ON ON OFF
ON ON ON ON ON OFF ON OFF
OFF ON ON ON ON OFF ON OFF
ON OFF ON ON ON OFF ON OFF
OFF OFF ON ON ON OFF ON OFF
ON ON OFF ON ON OFF ON OFF
OFF ON OFF ON ON OFF ON OFF
ON OFF OFF ON ON OFF ON OFF
OFF OFF OFF ON ON OFF ON OFF
ON ON ON OFF ON OFF ON OFF
OFF ON ON OFF ON OFF ON OFF
ON OFF ON OFF ON OFF ON OFF
OFF OFF ON OFF ON OFF ON OFF
ON ON OFF OFF ON OFF ON OFF
OFF ON OFF OFF ON OFF ON OFF
OFF
OFF
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GDS102 Operation and Installation Manual
Chapter: 4. Start-up and system Adaption
SKIPPER Electronics AS
Table 4.3 Frequency DIP switch settings, SW3 for Ch 1 (50 - 265 kHz), SW2 for Ch 2 (10 - 50 kHz)
Frequency SW2/SW3 settings
Frequency
(kHz)
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6 Dip 7 Dip 8
ON OFF OFF OFF ON OFF ON OFF
OFF OFF OFF OFF ON OFF ON OFF
ON ON ON ON OFF OFF ON OFF
OFF ON ON ON OFF OFF ON OFF
ON OFF ON ON OFF OFF ON OFF
OFF OFF ON ON OFF OFF ON OFF
ON ON OFF ON OFF OFF ON OFF
OFF ON OFF ON OFF OFF ON OFF
ON OFF OFF ON OFF OFF ON OFF
OFF OFF OFF ON OFF OFF ON OFF
ON ON ON OFF OFF OFF ON OFF
OFF ON ON OFF OFF OFF ON OFF
ON OFF ON OFF OFF OFF ON OFF
OFF OFF ON OFF OFF OFF ON OFF
ON ON OFF OFF OFF OFF ON OFF
OFF ON OFF OFF OFF OFF ON OFF
ON OFF OFF OFF OFF OFF ON OFF
OFF OFF OFF OFF OFF OFF ON OFF
ON ON ON ON ON ON OFF OFF
OFF ON ON ON ON ON OFF OFF
ON OFF ON ON ON ON OFF OFF
OFF OFF ON ON ON ON OFF OFF
ON ON OFF ON ON ON OFF OFF
OFF ON OFF ON ON ON OFF OFF
ON OFF OFF ON ON ON OFF OFF
OFF OFF OFF ON ON ON OFF OFF
ON ON ON OFF ON ON OFF OFF
OFF ON ON OFF ON ON OFF
ON OFF ON OFF ON ON OFF
OFF OFF ON OFF ON ON OFF OFF
ON ON OFF OFF ON ON OFF OFF
OFF ON OFF OFF ON ON OFF OFF
ON OFF OFF OFF ON ON OFF OFF
OFF OFF OFF OFF ON ON OFF OFF
ON ON ON ON OFF ON OFF OFF
OFF ON ON ON OFF ON OFF OFF
ON OFF ON ON OFF ON OFF OFF
OFF OFF ON ON OFF ON OFF OFF
ON ON OFF ON OFF ON OFF OFF
OFF ON OFF ON OFF ON OFF OFF
ON OFF OFF ON OFF ON OFF OFF
OFF OFF OFF ON OFF ON OFF OFF
OFF
OFF
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Page 61 of 77
SKIPPER Electronics AS
Chapter: 4. Start-up and system Adaption
GDS102 Operation and Installation Manual
Table 4.3 Frequency DIP switch settings, SW3 for Ch 1 (50 - 265 kHz), SW2 for Ch 2 (10 - 50 kHz)
Frequency SW2/SW3 settings
Frequency
(kHz)
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6 Dip 7 Dip 8
ON ON ON OFF OFF ON OFF OFF
OFF ON ON OFF OFF ON OFF OFF
ON OFF ON OFF OFF ON OFF OFF
OFF OFF ON OFF OFF ON OFF OFF
ON ON OFF OFF OFF ON OFF OFF
OFF ON OFF OFF OFF ON OFF OFF
ON OFF OFF OFF OFF ON OFF OFF
OFF OFF OFF OFF OFF ON OFF OFF
ON ON ON ON ON OFF OFF OFF
OFF ON ON ON ON OFF OFF OFF
ON OFF ON ON ON OFF OFF OFF
OFF OFF ON ON ON OFF OFF OFF
ON ON OFF ON ON OFF OFF OFF
OFF ON OFF ON ON OFF OFF OFF
ON OFF OFF ON ON OFF OFF OFF
OFF OFF OFF ON ON OFF OFF OFF
ON ON ON OFF ON OFF OFF OFF
OFF ON ON OFF ON OFF OFF OFF
ON OFF ON OFF ON OFF OFF OFF
OFF OFF ON OFF ON OFF OFF OFF
ON ON OFF OFF ON OFF OFF OFF
OFF ON OFF OFF ON OFF OFF OFF
ON OFF OFF OFF ON OFF OFF OFF
OFF OFF OFF OFF ON OFF OFF OFF
ON ON ON ON OFF OFF OFF OFF
OFF ON ON ON OFF OFF OFF OFF
ON OFF ON ON OFF OFF OFF OFF
OFF OFF ON ON OFF OFF OFF OFF
ON ON OFF ON OFF OFF OFF OFF
OFF ON OFF ON OFF OFF OFF
ON OFF OFF ON OFF OFF OFF
OFF OFF OFF ON OFF OFF OFF
ON ON ON OFF OFF OFF OFF
OFF ON ON OFF OFF OFF OFF
ON OFF ON OFF OFF OFF OFF
OFF OFF ON OFF OFF OFF OFF
ON ON OFF OFF OFF OFF OFF
OFF ON OFF OFF OFF OFF OFF
ON OFF OFF OFF OFF OFF OFF
OFF OFF OFF OFF OFF OFF OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
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GDS102 Operation and Installation Manual
Chapter: 4. Start-up and system Adaption
SKIPPER Electronics AS
Options
Calibration, sound speed
The only possible calibration activity is when the sound speed option is installed. In this case, set the
required sound speed value on screen 3. See “Fig. 2.4. Screen 3. Power adjustment and options.” on page
16.
Remote Sounding Control
When this option is installed, transmitter operation may be controlled by the external signal. The active
polarity of this signal may be set on screen 7, see “Fig. 2.8. Screen 7. Interface setup screen.” on page 20.
The following function options are available on screen 3, see “Fig. 2.4. Screen 3. Power adjustment and
options.” on page 16:
Ping
Name Description
Continuous
Edge
Level
Manual (single) The transmitter is activated ping by ping by pressing the PICTURE SPEED button on the operator panel.
Transmitter operation is continuous and not aected by the external signal.
The transmitter is activated once by an active signal edge. External Control will replace pict(ure) speed
value in the screen to indicate that edge ping is enabled.
The transmitter is controlled by the external signal level. An active level keeps the transmitter running, a
passive level stops the transmitter. (L) will be added behind pict(ure) speed value in the screen to indicate
that level ping is enabled.
The external control signal is disabled. Manual Control will replace pict(ure) speed value in the screen to
indicate that manual ping is enabled.
Note: When the GDS102S remote sounding control option is in Edge, Level or Manual (single) mode, it is
possible to silent the sounder by setting appropriate level on the TX control input (PULSE2/PULSEREF) on
the Combo Terminal board. The visible alarm presentation on the screen is done by changing the colour of
the digital depth value from black to red. As soon as transmissions are re-enabled, the colour will change to
black again.
Picture showing depth
in “non-transmitting”
mode.
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SKIPPER Electronics AS
Chapter: 5. Trouble shooting
GDS102 Operation and Installation Manual
5. Trouble shooting
If it is possible to cycle through the screens and view information, several assumptions may be made
regarding operation of the GDS102 system. Although some of the subsystems necessary for this basic
system operation may still suer from minor or intermittent operation disorders, the fact that it is possible
to select and observe dierent presentation screens, indicate correct operation of the following GDS102
subsystems:
• The CPU board is operating.
• The keyboard interface board is working.
• The LCD and backlight inverter PCB are working.
• The keyboard interface part of the I/O board is working.
• The power supplies on the terminal board are basically working.
Status Screen (screen 11) diagnosis
Symptom Cause Remedy
Main voltages outside (acceptable range)
• +5 V CPU: < > (4.7 V - 5.3 V)
• +5 V IO: < > (4.7 V - 5.3 V)
• +12 V CPU: < > (11.3 V - 12.7 V)
• +12 V IO: < > (11.3 V - 12.7 V)
• -12 V: < > ( -11.3 V - -12.7 V)
• HIGH V: <> (128 V - 136 V)
High voltage measurement.
T1
T2
• CPU or I/O PCB problem.
• Terminal PCB problem.
• CPU problem.
• Transceiver PCB problem.
• Terminal PCB problem.
• Interconnect problem.
• Defect power supply.
Checking the high voltage/power reduction:
• Use a multimeter and measure the DC voltage
in TP 7 and TP 8 on Dual transceiver PCB.
DD2
TP7 TP8
Power (%) Expected voltage (V) range.
10 % 13 - 15 V
50 % 61 - 65 V
100 % 123 - 128 V
Note:
• Replace CPU or I/O PCB.
• Replace terminal PCB.
• Replace CPU.
• Replace transceiver PCB.
• Replace terminal PCB.
• Check connections between
terminal PCB and transceiver
PCB.
• Replace transceiver board and/or
terminal board.
Channel 1 (TP 8).
Channel 2 (TP 7).
Page 64 of 77
TP7 and TP8 Testpoint (TP) location
for power reduction measurement.
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• When measuring, if possible, use the hold/
autohold function on the multimeter.
• These voltages are measured with a
simulator connected to the output, and
should only be regarded as guidelines for
voltages with a transducer installed.
Edition: 2017-06-12
GDS102 Operation and Installation Manual
Chapter: 5. Trouble shooting
SKIPPER Electronics AS
Fig. 5.1. Function LEDs, on terminal board.
Function LEDs.
The following LEDs are located on the terminal board as shown in g 5.1:
• LD400 NMEA signal activity on receive input 1.
• LD401 NMEA signal activity on receive input 2.
• LD700: +5 V#1/VCC (5 V CPU, Board External and CPU).
• LD701: +12 V#1/VDD (12 V CPU, Board External).
• LD702: +5 V#2 (5V IO, Board Internal).
• LD703: +12 V#2 (Board Internal).
• LD704: -12 V.
• LD705: -5 V.
• LD801: High voltage to dual transceiver PCB.
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Page 65 of 77
SKIPPER Electronics AS
Chapter: 5. Trouble shooting
Typical Status Screen 11 Contents
GDS102 Operation and Installation Manual
The status screen 11 contains information that will facilitate analysis and correction of several problems.
A printout or picture of the status and oscilloscope screens should be sent with any report about functional
disturbance. This will greatly facilitate remote failure analysis.
The other information on the status screen is a collection of information which may be observed and
manipulated with the various screen soft key selections. As a reference, it will often be more convenient to
observe the various settings together on this screen, than to cycle from screen to screen to check on the soft
key texts.
Dual numbers (50 %/50 %) refers to channels (Ch 1/Ch 2).
Page 66 of 77
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GDS102 Operation and Installation Manual
Chapter: 5. Trouble shooting
SKIPPER Electronics AS
Symptom Cause Remedy
Basic system integrity
1. No picture on LCD Screen. 1. No AC or DC power to the system.
2. System is in standby.
3. To low screen backlight.
4. Defective LCD module.
5. Voltage(s) out of range.
1. Picture is dicult to read. 1. Backlight is too weak. 1. Increase backlight setting.
1. Check switches and fuses on the
terminal PCB inside the GDS102
cabinet.
2. Press any button on panel.
3. Increase backlight setting.
4. Replace module.
5. Replace terminal PCB.
1. Display backlight malfunctions.
2. Display picture is faintly visible.
1. Rotary encoder malfunctions. 1. Defective encoder or interface. 1. Replace keyboard PCB.
1. Panel buttons malfunctions. 1. Defective buttons or interface.
1. Defective backlight tubes.
2. Defective backlight power inverter.
2. One button stuck.
1. Replace tube assembly.
2. Replace inverter PCB.
1. Replace keyboard PCB.
2. Check key switches or replace
keyboard PCB.
Symptom Cause Remedy
Basic functionality
1. No bottom detection or bottom
contour.
1. Bottom tracking is intermittent
or erroneous.
1. Too low Gain setting.
2. Too low TVG setting.
3. Too low power setting.
4. Wrong frequency selection.
1. Marginal gain, TVG or power settings.
2. Weather conditions.
3. Transducer installation faulty.
4. Faulty dual transceiver PCB.
1. Adjust settings.
2. Adjust settings.
3. Adjust settings.
4. Select correct frequency.
1. Adjust settings.
2. Try adjusting gain, TVG or power
settings.
3. Check transducer wiring.
4. Change or check dual transceiver PCB.
1. Bottom tracking is masked by
high noise levels.
Edition: 2017-06-12
1. Too high gain setting.
2. Too high TVG setting.
3. To high power setting.
First Page Last PagePrev Page Next Page
1. Adjust settings.
2. Adjust settings.
3. Adjust settings
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SKIPPER Electronics AS
Symptom Cause Remedy
NMEA and external interfaces.
Chapter: 5. Trouble shooting
GDS102 Operation and Installation Manual
1. NMEA input signals are not listed
on the NMEA screen 10.
1. NMEA input signals are listed
on the NMEA screen 10, but not
accepted by the GDS102.
1. NMEA output signals are not
accepted by the remote system.
1. Analogue output malfunctions. 1. Incorrect analogue limits setting.
1. Remote sounding control inputs
malfunction.
1. Wrong polarity input signals.
2. NMEA port, selected for observation is
not correct.
3. Wrong baud rate.
4. RS-232 driver malfunction.
5. NMEA driver malfunction.
1. GDS102 initialization.
2. Irregular message mnemonic.
1. Remote listener setup. 1. Verify correct remote listener
2. Analogue circuitry malfunction.
1. Incorrect polarity.
2. Pulse input circuitry malfunction.
1. Swap NMEA input wires.
2. Try to select another NMEA port
on the NMEA screen.
3. Select the same baud rate as the
talker.
4. Replace CPU PCB.
5. Replace terminal PCB.
1. Cycle GDS102 power after
NMEA connection is established.
2. Check remote (talker) setup.
setup e.g. baud rate etc.
1. Verify upper and lower limits on
screen 7. See “Fig. 2.8. Screen 7.
Interface setup screen.” on page 20.
2. Replace terminal PCB.
1. Verify settings on screen 7.
2. Replace terminal PCB.
Page 68 of 77
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Edition: 2017-06-12
GDS102 Operation and Installation Manual
Chapter: 6. User Maintenance
SKIPPER Electronics AS
6. User Maintenance
Transducer maintenance
The transducers are virtually maintenance free, but occasional cleaning may be necessary depending on sea
water conditions and organic growing on ship’s hull.
Operator Unit Maintenance
The operator unit contains no user serviceable parts, and requires no maintenance apart from occasional
cleaning of the front panel. Please use a soft cloth and no chemicals except cleaning alcohol.
Edition: 2017-06-12
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SKIPPER Electronics AS
7. System Specications
Functional Properties
Chapter: 7. System Specications
GDS102 Operation and Installation Manual
Display
Printer
Depth alarms
Calendar/Clock
Interface outputs
Interface inputs
Languages
Options
158 x 211 mm (10.4”) TFT colour LCD screen with adjustable contrast and backlight.
640 x 480 pixels.
Optional external printer, HP Deskjet, Epson D88 or Epson LQ 300.
Deep and shallow limits.
Year-month-day/hours-minutes (24 hour system).
• Trigger and bottom pulses.
• Analogue 4 - 20 mA and 0 - 10 V for depth.
• NMEA 0183.
• relay.
• Output for VGA repeater.
• PC parallel printer port.
• NMEA 0183 for speed, position, heading and time.
• External alarm reset
• English.
• French.
• Spanish.
• German.
• Norwegian.
• IR301 digital remote depth indicator.
• LCD repeater.
• Remote keyboard.
• Remote sounding control (GDS102S).
• Reduced power output.
• Sound speed calibration (GDS102S).
Performance
Displayable depth range
Graphic resolution
Digital screen resolution
Transducer, 24 kHz/38 kHz
Transducer, 50 kHz
Transducer, 200 kHz
0 - 5000 m
0.5 % of range
< 10 m: 0.01 m
>= 10 m < 100 m: 0.1 m
>= 100 m: 1 m
Beam angle 16°/20° conical.
Max. power 1 kW.
Eective range 3000 m/1500 m.
Beam angle 33° conical.
Max. power 1 kW.
Eective range 750 m.
Beam angle 6°/10° conical.
Max. power 1 kW.
Eective range 350 m/350 m
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Edition: 2017-06-12
GDS102 Operation and Installation Manual
Chapter: 7. System Specications
Environmental according to IEC 60945:
Transducer and Junction Box
SKIPPER Electronics AS
Operating temperature
Storage temperature
Protection, transducer
Protection, junction box
Operator Unit Cabinet
Supply voltage
Power consumption
Alarm relay
Printer
NMEA port
Operating temperature
Storage temperature
Humidity
Protection
Measuring accuracy
-15 to +55 degrees C.
-20 to +70 degrees C.
6 bar.
IP 56.
115 V AC (96 to 125 V), 230 V AC (195 to 253 V).
24V DC (20 to 32 V). (Automatic switch over).
App. 60 W at 24 V, App. 80 W at 115 V or 230 V.
Change-over contact, max. 24 V 300 mA.
25 pin D-type connector, (female).
9 pin D-type connector, (female). 2 Inputs, 2 Outputs.
-15 to +55 degrees C. (To increase serviceability and life-time, we suggest the
working temperature to be held at 0 to +40 degrees C).
-20 to +70 degrees C.
10 to 90 % relative, no condensation.
IP 42.
Better than 1 %.
Edition: 2017-06-12
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SKIPPER Electronics AS
Dimensions
Chapter: 7. System Specications
GDS102 Operation and Installation Manual
Transducer, 24 kHz/38 kHz
Transducer, 50 kHz
Transducer, 200 kHz
Transducer, 200 kHz
Transducer Junction Box
Operator unit cabinet
Diameter 181 mm.
Mounting Tank/sea valve/ice tank.
Cable length 40 m.
Weight app. 20 kg.
Protection IP 68.
Diameter 90 mm.
Mounting Tank/sea valve/ice tank.
Cable length 25 m or 40 m.
Weight app. 7 kg.
Protection IP 68.
Diameter 140 mm.
Mounting Tank.
Cable length 25 m or 40 m.
Weight app. 8 kg.
Protection IP 68.
Diameter 90 mm.
Mounting Sea valve/tank/ice tank.
Cable length 25 m.
Weight app. 7 kg.
Protection IP 68.
Size incl. glands 132 x 111 mm.
Depth 55 mm.
Weight 0.6 kg.
Protection IP 56.
Height, front 340 mm.
Width 320 mm.
Depth 170 mm.
Weight app. 10 kg.
Protection IP 23.
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GDS102 Operation and Installation Manual
Chapter: 8. Service
SKIPPER Electronics AS
8. Service
All service requests should be made to the local SKIPPER representative. Adjustments and repairs should
only be performed by qualied service engineers. Unqualied repair attempts will void the warranty.
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Page 73 of 77
SKIPPER Electronics AS
Chapter: 8. Service
GDS102 Operation and Installation Manual
CPU 6742VE Setup
In some cases support engineers may ask for the CPU setup congurations. To access these, a normal PC
keyboard (PS/2) is required and the following steps should be taken:
1. Connect a PC keyboard to the CPU board.
2. Connect a VGA screen to the CPU board.
3. Switch the GDS102 power switch “ON” while pressing the ‘’DELETE’’ key on the PC keyboard.
4. Do not release ‘’DELETE’’ key until several clicks , beeps and signals have been heard, and picture is
present on the VGA screen. Then release key.
This board has the following BIOS settings (BIOS version 1.12). The PCA 6742VE has the default settings
with the following changes. Start by loading the optimized defaults, and then change the following
:
CPU SETUP:
STANDARD CMOS FEATURES
Date Change to todays date
Time Change to time now
HALT ON NO ERRORS
Advanced BIOS Features
a. Hard Disk priority [Press enter] – Press enter
i. 1 should be ch.1 M.
ii. 2 should be ch 0 M.
b. First Boot Device [Hard Disk]
c. Second Boot Device [Hard Disk]
d. Boot other device [Disabled]
Advanced Chipset features
a. SMI712 VGA Settings [Press Enter] – Press enter
i. SMI712 VGA Monitor [Simul monitor]
ii. Panel resolution Mode [640 x 480 TFT]
b. USB Device Setting [Press Enter] – press enter
i. USB1.0 emulation [Disabled]
Integral Peripherals
a. Onboard serial Port 3 [enter]
i. Change to [2E8/IRQ9]
b. Onboard serial Port 4 [enter]
i. Change to [3E8/IRQ5]
c. Parallel Port Mode [EPP]
d. EPP Mode Select [EPP1.9]
PnP/PCI Congurations
a. Resources Controlled By [Manual]
b. IRQ Resources [Enter]
i. IRQ – 7 assigned to [Legacy ISA]
ii. IRQ – 10 assigned to [Legacy ISA]
iii. IRQ – 11 assigned to [Legacy ISA]
c. NO DMA
PC Health Status
a. Case Open Warning [Disabled]
SAVE SETTINGS AND EXIT
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GDS102 Operation and Installation Manual
KEY 1 KEY 2 KEY 3 KEY 4 KEY 5 KEY 6
Chapter: 8. Service
SKIPPER Electronics AS
Master Reset Procedure
After completed set-up procedure, you should always do a ‘’Master Reset’’:
• Switch o the GDS102 using the internal toggle switch and wait a few seconds.
• Then press down and keep pressed the soft key to the far left and far right (no. 1 and 6) in the upper row
on the GDS102 keyboard.
• Turn “on” the GDS102, and keep the two soft keys pressed down until the screen shows the normal
picture. This may take as long as app. 30 seconds.
• You should now normally hear 4 ‘’beeps’’.
You have now completed the “Master Reset” procedure.
Upgrading Software
New software versions are released from time to time. The GDS102 with Compact Flash (CF) can be
updated by performing the following software upgrade procedure.
1. If you have received a programmed compact ash, skip stage 2.
2. Newest software may be downloaded from the web http://www.skipper-service.no/skipdoc/skipdoc.php.
Under “software” you will nd your equipment type. Also copy the latest version of startup.exe into the
root folder.
Note: Standard Compact Flash reader is needed to be attached to the PC.
Note: It is possible to use the Compact Flash card, which is already installed in the display unit.
3. Switch “o” the mains of the display unit and insert Compact Flash card with the new software on it.
4. Press the “hidden” button inside the cabinet (mounted on the solder side of the keyboard). Keeping the
“hidden” button pressed, switch “on” the mains in the display unit and keep the button pressed while the
message “You may release the upgrade button” appears in the lower part of the screen. If a new setup.
exe is to be loaded, follow the on screen instructions.
5. Release the “hidden” button. After few diagnostic text messages, the list of available software versions
will appear in the lower part of the screen as in example below.
6. Note: If the bootloader does not nd any le with the software on the Compact Flash, the presently
installed version will start automatically. In this case, make sure, that the upgrade and setup le has been
copied correctly on the Compact Flash and repeat procedure.
1.13.01 1.12.10
External Active
7. Select a software version, which you would like to install. Normally, it is possible to chose one out
of two: the version, which is currently installed in the internal memory (indicated as Active) and the
upgrade version (indicated as External). The version name is displayed in the upper line of the text lines,
located just above the corresponding soft key. In the example above, soft key #1 should be pressed to
select the latest software version.
8. Conrm selection by pressing YES button (or go back to selection, pressing NO).
9. Press any button to start the upgraded software (or it will start automatically in 5 seconds).
10. Note: The le with a previous software version will be copied back to the Compact Flash card, so it
would be possible to re-install it in the similar manner, if desired.
Note: Always turn o the unit with the switch on the Combo Terminal board when removing/replacing the
CF disk
Edition: 2017-06-12
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Page 75 of 77
SKIPPER Electronics AS
Chapter: 9. EMC mounting kit
9. EMC MOUNTING KIT
GDS102 Operation and Installation Manual
Page 76 of 77
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Edition: 2017-06-12
GDS102 Operation and Installation Manual
Chapter: 10. Warranty and Utilization
SKIPPER Electronics AS
10. Warranty and Utilization
Warranty:
• SKIPPER Electronics AS gives 12 months limited guarantee on all deliveries from SKIPPER Electronics
AS, Norway.
• Please note that if the equipment is delivered by a third party, the third party’s warranty conditions may
apply.
• All warranty request should be sent to the local supplier of the equipment.
Utilization:
• This equipment is not to be disposed in normal waste, but be handled in accordance with applicable
waste disposal regulations in the country where the equipment is used.
Edition: 2017-06-12
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