Garmin GSD 21 - Manual (Page 5)

3 GSD 21 Sonar Module
I
NSTALLATION
I
NSTRUCTIONS
CANet W
iring for the Garmin GSD 21
Notes:
1.
Power and ground wires require 18
AWG.
You can extend the CANet wiring of the GSD 21 power/data cable up to 80 ft (24.38 m) total length using the
CANet Connections Kit.
2.
The CANet Extension Cable can support a maximum of two display units and one sonar unit.
3.
The maximum length of cable from the CANet Extension Cable to the sonar or display units is 6 ft.
4.
Refer to the chartplotter
’s installation instructions for wiring the GPS 17 sensor and other devices.
5.
Ground the drain wire at the fi
rst display unit. Do not ground the drain wire on the subsequent display units or sonar unit.
6.
The CANet Extension Cable Black wire is reserved for future use.
When inserting a CANet unit on the CANet Extension Cable, reconnect all wires according
to their color
.
7.
When crimping the 3-wire connector
, use a standard pair of pliers and make sure the button is fully depressed into the connector
.
�
GARMIN GSD 21
SOUNDER MODULE
BL
AC
K
O
R
AN
G
E
G
R
EE
N
W
H
IT
E
C
AN
et
Te
rm
in
at
or
C
AN
et
Te
rm
in
at
or
C
AN
et
Ex
te
ns
io
n
C
ab
le
R
ED
BL
AC
K
FU
SE 2A
TO
TRANSDUCER
BL
AC
K
D
R
AI
N
O
R
AN
G
E
G
R
EE
N
W
H
IT
E
BA
TT
ER
Y
10
-3
5
VO
LT
S
D
C
See the CANet T
erminator
Connection Diagram Below
CANet
Unit
CANet
Unit
CANet
Unit
The CANet Extension Cable can be cut to any length 1 ft to 80 ft and a CANet compatible device can be
inserted on the cable at any point between the two CANet
Terminators.
CANet
CANet
Multiple CANet Unit Connection
CANet T
erminator Connection
CANet
Terminator
Green White
Green
3 wire connector
3 wire connector
Green
White
White
To Sounder
To Chartplotter