Garmin GSD 28 Installation Instructions Manual page 9

Transducer Wire Color Tables
Single-Element Transducers
You can connect a single-element transducer to the terminals labelled LOW or HIGH, regardless of nominal
frequency. To ensure proper transducer identification and safe operation, you must connect each single-
element transducer to its own set of terminals.
Transducer
+
Model
Garmin GT12M-
Red
THF
Garmin GT15M-
Red
THF
Airmar TM185M Blue
Blue/
Airmar B175L
White
Airmar B175M Blue
Airmar B175H Blue
Airmar TM150M Blue
Airmar B150M Blue
Blue/
Airmar B75L
White
Airmar B75M Blue
Airmar B75H Blue
SHIELD − GRND SHIELD TEMP XID
N/A Black Bare
N/A Black Bare
Bare Black Brown N/A
Black/
Bare Brown N/A
White
Bare Black Brown N/A
Bare Black Brown N/A
N/A Black Brown N/A
N/A Black Brown N/A
Black/
Bare Brown N/A
White
Bare Black Brown N/A
Bare Black Brown N/A
N/A White N/A
N/A White N/A
White Orange N/A
White Orange N/A
White Orange N/A
White Orange N/A
White Orange N/A
White Orange N/A
White Orange N/A
White Orange N/A
White Orange N/A
Ground
GID1 GID2
Post
Yellow N/A N/A
Yellow N/A N/A
N/A Bare
N/A Bare
N/A Bare
N/A Bare
N/A Bare
N/A Bare
N/A Bare
N/A Bare
N/A Bare
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