Garmin GSD20 Sounder User manual

installation
guide
GSD 20
sounder module
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© Copyright 2001-2003 Garmin Ltd. or its subsidiaries. All Rights Reserved
Garmin International, Inc., 1200 East 151st Street, Olathe, KS 66062, U.S.A.
Tel. [phone] or 800/800.1020 Fax [phone]
Garmin (Europe) Ltd., Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey SO51 9DL, U.K.
Tel. [phone] Fax [phone]
Garmin Corporation, No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
Tel. [phone] Fax [phone]
Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored
in any storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to down-
load a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and
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contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or
any revision hereto is strictly prohibited.
Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to
make changes in the content without obligation to notify any person or organization of such changes or improvements.
GARMIN®, See-Thru®, DCG®(Depth Control Gain) and GPSMAP®are registered trademarks of Garmin Ltd. or its subsidiaries and may
not be used without the express permission of Garmin.
September 2003 Part Number 190-00255-00 Rev. C Printed in Taiwan
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1
Introduction
Thank you for choosing the Garmin GSD 20. The GSD 20 is an
intelligent, remote sounder module designed to include powerful
features as found in other Garmin sounders, including Depth Control
Gain (DCG®) and See-Thru®technology. When used with compatible
Garmin chartplotters, it adds full featured depth sounder functions. It
may interface to multiple head units, providing for complete sounder
control from either station, including transmit frequency, range and
gain adjustments. To get successful results from your GSD 20, take
time to read through this installation guide.
This guide is organized into two sections:
The Introduction section provides package contents, system
requirements and a description of the GSD 20.
The Installation section provides installation instructions and
specifications for the GSD 20.
About This Manual &
Package Contents
Standard Package Contents
• GSD 20 Sounder Module
• 30’ (9.1 m) Power/Data Cable
• Installation Guide for the GSD 20
If any items are missing, please contact
your Garmin dealer immediately.
Optional Transducers
The transducer acts as the eyes and ears of your new sonar.
Proper transducer selection and installation are critical to
the operation of your unit. The transducer transmits sound
waves toward the bottom in a cone shape. The larger the
cone angle, the larger the coverage area at a given depth.
Since many mounting locations vary, listed below are a
variety of optional transducers and accessories which are
available from your local dealer or Garmin:
• 200/50 kHz, 10/40°, bronze, thru-hull, depth, temp, speed
• 200/50 kHz, 10/40°, bronze, thru-hull/long stem, depth,
temp, speed
• 200/50 kHz, 10/40°, bronze, thru-hull mount, depth only
• 200/50 kHz, 10/40°, plastic, transom mount, depth, temp,
speed
• 200/50 kHz, 10/40°, plastic, thru-hull mount, depth only
• 200/50 kHz, 10/40°, plastic, transom mount, depth, temp
• 200/50 kHz, 10/40°, plastic, in-hull adjustable mount,
depth, only
• Speed Sensor
• Temperature Probe
• Thru-hull fairing block
• 10 ft. Extension cable for transducers
• 20 ft. Extension cable for transducers
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Introduction
Power/Data Connector
LED Status Indicator
Transducer Connector
Mounting Holes
2
Unit Overview
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3
Installation
Installing the GSD 20
The GSD 20 must be properly installed according to the following
instructions to get the best possible performance. To complete the
installation, you’ll need the appropriate fasteners. When in doubt,
seek professional assistance.
The module should be mounted in an out of the way location
that is preferably dry and well ventilated. Avoid mounting the module
where it will be submerged in liquids or exposed to extreme tem-
peratures. If you wish to view the blink codes (see page 7), be sure to
mount the module so that the LED is visible.
To install the GSD 20 module:
1. Once the location is chosen, place the unit in the desired position.
Be sure to allow enough clearance for attaching the cables. Using
the module as a template, mark the location of the four mounting
holes. If needed, additional mounting holes may be drilled in the
side mounting flanges of the module.
2. Attach the GSD 20 to the mounting location using the appropriate
fasteners.
3. Mount the transducer according to the instructions provided with
the transducer.
4. Route the cables to the mounting location of the display unit. Use
the appropriate tie-wraps, fasteners and sealant to secure the
cable along the route and through any bulkhead or deck.
5. Once the GSD 20 module has been installed, connect the power/
data and transducer cables to the appropriate receptacle on the
module.
6. Refer to the following wiring diagrams for connecting the GSD 20
to a compatible Garmin display unit.
You may extend the wiring of the GSD 20
power/data cable up to 100’ (30m) total
length. Use 24 AWG, 4 conductor shielded
cable for data cable and 18 AWG for
power. For extending transducer the cable,
extensions are available through your
Garmin dealer.
)
Features
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4
Installation
WIRE
COLOR
WIRE
COLOR
18 AWG
18 AWG
2A
1.5 A
ALARM
SEE NOTE 2
GARMIN GSD 20
SOUNDER MODULE
BLACK GROUND
ORANGE ON (REMOTE POWER)
RED POWER IN
WHITE/BLUE
WHITE/BROWN
YELLOW
ALARM
GROUND BLACK
DATA OUT BLUE
POWER IN RED
DATA IN BROWN
PORT A IN
PORT A OUT
SHIP'S BATTERY
10-35 VOLTS
GARMIN
GPSMAP UNIT
NOTES:
1. ALL WIRES 24 AWG OR LARGER UNLESS OTHERWISE NOTED. FOR RUNS OVER
30' (9.1 m), USE 4-CONDUCTOR, SHIELDED 24 AWG WIRING.
2. THE ALARM OUTPUT CAN BE USED TO DRIVE A LAMP, HORN, OR BOTH.
MAXIMUM CURRENT IS 100 MILLIAMPS. A SWITCH OR RELAY CAN BE USED
TO SELECT BETWEEN VISUAL AND AUDIBLE ALERTS, IF REQUIRED.
3. FOR RUNS OVER 30' (9.1 m), THE DRAIN WIRE MUST BE CONNECTED TO THE
SHIELDING OF THE EXTENSION RUN. DO NOT TERMINATE THE END OF THE
SHIELD DRAIN WIRE.
4. IN ORDER TO UPDATE THE GSD 20 SOFTWARE, THE GPSMAP UNIT MUST BE
CONNECTED TO PORT A OF THE GSD 20.
5. THE ORANGE WIRE MUST BE PULLED LOW (-) IN ORDER FOR THE GSD 20 TO
POWER ON. IF THE GSD 20 IS BEING WIRED TO A CIRCUIT THAT IS ALREADY
SWITCHED ON THE POSITIVE (+) WIRE, CONNECT THE ORANGE AND BLACK
WIRES TO THE SAME GROUND AND DO NOT INSTALL A SWITCH. THE GSD 20
WILL TURN ON/OFF WHEN POWER IS APPLIED/REMOVED TO THE RED (+) WIRE.
TWO SWITCH LOCATIONS ARE SHOWN, BUT ONLY ONE SWITCH IS NEEDED.
BARE DRAIN WIRE - N/C DO NOT TERMINATE BARE SHIELD DRAIN
WHITE/RED
WHITE/BLACK
PORT B IN
PORT B OUT
BASIC WIRING FOR GARMIN GSD 20 TO SINGLE
GPSMAP 182/182C/232
+
-
SEE NOTE 3
SWITCH - SEE NOTE 5
Closed - ON
Open - OFF
SWITCH - SEE NOTE 5
OR
Wiring
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5
Installation
WIRE
COLOR
WIRE
COLOR
18 AWG
18 AWG
2A
5A
ALARM
SEE NOTE 2
GARMIN GSD 20
SOUNDER MODULE
BLACK GROUND
ORANGE ON
RED POWER IN
WHITE/BLUE
WHITE/BROWN
YELLOW
ALARM
GROUND BLACK
PORT 3 OUT WHITE/BLUE
ACCESSORY ON ORANGE
POWER IN RED
PORT 3 IN WHITE/BROWN
PORT A IN
PORT A OUT
SHIP'S BATTERY
10-35 VOLTS
GARMIN
GPSMAP 2006/2010
(SEE NOTE 3)
NOTES:
1. ALL WIRES 24 AWG OR LARGER UNLESS OTHERWISE NOTED. FOR RUNS OVER
30' (9.1 m), USE 4-CONDUCTOR, SHIELDED 24 AWG WIRING.
2. THE ALARM OUTPUT CAN BE USED TO DRIVE A LAMP, HORN, OR BOTH.
MAXIMUM CURRENT IS 100 MILLIAMPS. A SWITCH OR RELAY CAN BE USED
TO SELECT BETWEEN VISUAL AND AUDIBLE ALERTS, IF REQUIRED.
3. REFER TO 2006/2010 INSTALLATION INSTRUCTIONS FOR WIRING THE
GPS 17 SENSOR AND OTHER DEVICES.
4. FOR RUNS OVER 30' (9.1 m), THE DRAIN WIRE MUST BE CONNECTED TO THE
SHIELDING OF THE EXTENSION RUN. DO NOT TERMINATE THE END OF THE
SHIELD DRAIN WIRE.
5. IN ORDER TO UPDATE THE GSD 20 SOFTWARE, THE 2006/2010 MUST BE
CONNECTED TO PORT A OF THE GSD 20.
BARE DRAIN WIRE - N/C DO NOT TERMINATE BARE SHIELD DRAIN
WHITE/RED
WHITE/BLACK
PORT B IN
PORT B OUT
BASIC WIRING FOR GARMIN GSD 20 TO SINGLE GPSMAP 2006/2010
+
-
SEE NOTE 4
Wiring
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6
Installation
WIRE
COLOR
WIRE
COLOR
18 AWG
18 AWG
2A
5A
ALARM
SEE NOTE 2
GARMIN GSD 20
SOUNDER MODULE
BLACK GROUND
ORANGE ON
RED POWER IN
WHITE/BLUE
WHITE/BROWN
YELLOW
ALARM
GROUND BLACK
PORT 3 OUT WHITE/BLUE
ACCESSORY ON ORANGE
POWER IN RED
PORT 3 IN WHITE/BROWN
PORT A IN
PORT A OUT
SHIP'S BATTERY
10-35 VOLTS
GARMIN
GPSMAP 2006/2010
#1
(SEE NOTE 3) BARE DRAIN WIRE - N/C DO NOT TERMINATE BARE SHIELD DRAIN
WHITE/RED
WHITE/BLACK
PORT B IN
PORT B OUT
BASIC WIRING FOR GARMIN GSD 20
TO DUAL GPSMAP 2006/2010
+
-
WIRE
COLOR
YELLOW
ALARM
GROUND BLACK
PORT 3 OUT WHITE/BLUE
ACCESSORY ON ORANGE
POWER IN RED
PORT 3 IN WHITE/BROWN
GARMIN
GPSMAP 2006/2010
#2
(SEE NOTE 3)
5A
ALARM
SEE NOTE 2
NOTES:
1. ALL WIRES 24 AWG OR LARGER UNLESS OTHERWISE NOTED. FOR RUNS OVER
30' (9.1 m), USE 4-CONDUCTOR, SHIELDED 24 AWG WIRING.
2. THE ALARM OUTPUT CAN BE USED TO DRIVE A LAMP, HORN, OR BOTH.
MAXIMUM CURRENT IS 100 MILLIAMPS. A SWITCH OR RELAY CAN BE USED
TO SELECT BETWEEN VISUAL AND AUDIBLE ALERTS, IF REQUIRED.
3. REFER TO 2006/2010 INSTALLATION INSTRUCTIONS FOR WIRING THE
GPS 17 SENSOR AND OTHER DEVICES.
4. FOR RUNS OVER 30' (9.1 m), THE DRAIN WIRE MUST BE CONNECTED TO THE
SHIELDING OF THE EXTENSION RUN. DO NOT TERMINATE THE END OF THE
SHIELD DRAIN WIRE.
5. IN ORDER TO UPDATE THE GSD 20 SOFTWARE, THE 2006/2010 MUST BE
CONNECTED TO PORT A OF THE GSD 20.
SEE NOTE 4
Wiring
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7
Installation
Blink Codes
Once the unit is installed, it switches on when the display unit is
powered on (or the GSD remote power line is pulled low, with power
applied). The two-color (Green/Red) LED on the GSD 20 indicates the
current operational status of the module. Codes are:
Code: Green blinking, on for 1 second, off for 1/2 second (slow
blink)
Status: GSD 20 is connected to one display device and is operating
properly. User should see sonar data on the display unit.
Code: Green blinking, on for 1/2 second, off for 1/4 second (fast
blink)
Status: GSD 20 is connected to two display devices and is operating
properly. User should see sonar data on both display units.
Code: Red blinking, on for 1 second, off for 1/2 second (slow blink)
Status: GSD 20 is powered on but is waiting to connect to a display
device. In this state, the GSD 20 does not transmit any sonar signals
and is not sending out any sonar information to display units. If a
display unit is connected, check the wiring if this code persists.
Code: Solid Red (no blink)
Status: Software failure - Call Garmin Customer Support. If the
cause is a software error, the display unit can show the error. Power
must be cycled to clear the error.
Code: Red blinking, on for 1/10 second, off for 1/10 second (very
fast blink)
Status: System alarm. The display device gives a message indicating
the type of failure. After the alarm condition is fixed, power must be
cycled on the GSD 20 to clear the alarm.
Blink Codes
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8
Installation Physical Specifications
Size: 6.75” L x 4.75” W x 2.00” H
(17.2cm x 12.1cm x 5.1cm)
Weight: 1.5 lbs. (.680Kg)
Case: Fully gasketed, high-impact plastic and
aluminum alloy, waterproof to IEC 529-IPX-7
Temp Range: 5°F to 158°F (-15°C to 70°C)
Power
Source: 10-35 Vdc
Usage: 18 watts max.
Fuse: AGC/3AG - 2.0 Amp
Sonar
Sounder Power: 500 watts (RMS)
4000 watts (peak to peak)
Frequency: 50/200 kHz
Depth: 1500 foot max depth*
* Depth capacity is dependent on water salinity,
bottom type and other water conditions.
Data Output
Source: Proprietary Garmin data format.
Warning: This product, its packaging, and its
components contain chemicals known to the State of
California to cause cancer, birth defects, or reproductive
harm. This Notice is being provided in accordance with
California’s Proposition 65. If you have any questions
or would like additional information, please refer to our
web site at www.garmin.com/prop65.
)
Note: When using the GPS Chartplotter and GSD
20 on battery power only (engines off) for extended
periods of time, be sure there are enough available
amperage to run the units for the time period. Running
other onboard devices at the same time may lower
the available amperage causing the GPS Chartplotter
and/or GSD to shut off. Check with your local marine
dealer/installer if problems persist.
)
Specifications
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